{"title":"57-Tooth Sprocket","description":"","products":[{"product_id":"03a57-sprocket","title":"03A57 Sprocket","description":"This 03A57 sprocket is a durable, high quality, and precision A-plate sprocket with 57 teeth that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ISO Standards, which ensures proper contact between the \u003ca href=\"https:\/\/www.usarollerchain.com\/03B-Roller-Chain-Metric-03B-Roller-Chain-p\/03b-roller-chain.htm\" target=\"_blank\"\u003e03B-1 roller chain\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand sprocket thus preventing premature wear or breakage. 03A57 sprockets with a stock bore come with a 10 millimeter inside diameter plain hole and can be easily machine bored to custom sizes. If you are in need of a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information or to get a custom quote please contact us and we will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e03A57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/03B_SPROCKETS_A_PLATE_DWG_8e3dc43a-9892-41e6-9137-3b207ad8625c.png?v=1737617004\" style=\"width: 89px;\" alt=\"03A57 Sprocket\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 03A57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003eThickness (T): 2.3mm\u003c\/li\u003e\n\u003cli\u003eOutside Diameter (OD): 92.9mm\u003c\/li\u003e\n\u003cli\u003ePitch Diameter (PD): 90.76mm\u003c\/li\u003e\n\u003cli\u003eStock Bore (ID): 10mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0.20 kg\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714050031983,"sku":"03A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40A54-SPROCKET-2_fae4d520-8fb8-4cbf-9cdf-3372f1fdce79.jpg?v=1756322627"},{"product_id":"04a57-sprocket","title":"04A57 Sprocket","description":"This 04A57 sprocket is a durable, high quality, and precision A-plate sprocket with 57 teeth that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ISO Standards, which ensures proper contact between the \u003ca href=\"https:\/\/www.usarollerchain.com\/04B-Roller-Chain-p\/eco-04b-roller-chain.htm\" target=\"_blank\"\u003e04B-1 roller chain\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand sprocket thus preventing premature wear or breakage. 04A57 sprockets with a stock bore come with an 12 millimeter inside diameter plain hole and can be easily machine bored to custom sizes. If you are in need of a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information or to get a custom quote please contact us and we will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e04A57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/03B_SPROCKETS_A_PLATE_DWG_8e3dc43a-9892-41e6-9137-3b207ad8625c.png?v=1737617004\" style=\"width: 97px;\" alt=\"04A57 Sprocket\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 04A57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003eSprocket Width (T): 2.6mm\u003c\/li\u003e\n\u003cli\u003eOutside Diameter (OD): 111.4mm\u003c\/li\u003e\n\u003cli\u003ePitch Diameter (PD): 108.93mm\u003c\/li\u003e\n\u003cli\u003eStock Bore (ID): 12mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0.250 kg\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714052751727,"sku":"04A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40A54-SPROCKET-2_36f5d750-7e48-4cd9-8b34-84a2d3c51100.jpg?v=1756322763"},{"product_id":"04b57-sprocket","title":"04B57 Sprocket With Stock Bore","description":"This 04B57 sprocket is a durable, high quality, and precision sprocket with 57 teeth. Something else that is notable about this 04B57 sprocket is that it fully meets all ISO Standards, which ensures proper contact between the \u003ca href=\"https:\/\/www.usarollerchain.com\/04B-Roller-Chain-p\/eco-04b-roller-chain.htm\" target=\"_blank\"\u003e04B-1 roller chain\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand sprocket thus preventing premature wear or breakage. 04B57 sprockets with a stock bore come with the standard 12 millimeters inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes and include a key-way and set-screws. If you are needing a custom bore sprocket we the capabilities on providing those to within a fast lead time and at really great prices. For more information or to get a formal quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e04B57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/03B_SPROCKETS_B_HUB_DWG_7c27c242-19ef-4080-877b-aa8a87797d89.png?v=1737617008\" style=\"width: 156px;\" alt=\"04B57 Sprocket With Stock Bore\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 04B57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003eSprocket Width (T): 2.6mm\u003c\/li\u003e\n\u003cli\u003ePitch Diameter (PD): 108.93mm\u003c\/li\u003e\n\u003cli\u003eOutside Diameter (OD): 111.4mm\u003c\/li\u003e\n\u003cli\u003eHub Diameter (H): 50mm\u003c\/li\u003e\n\u003cli\u003eStock Bore (ID): 12mm\u003c\/li\u003e\n\u003cli\u003eLength Thru Bore (L): 20mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0.60 kg\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714054783343,"sku":"04B57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40B50-SPROCKET-2_9ed33c4a-3ba6-43c4-9add-a78a3226f32d.jpg?v=1756322850"},{"product_id":"05a57-sprocket","title":"05A57 Sprocket","description":"This 05A57 sprocket is a durable, high quality, and precision A-plate sprocket with 57 teeth that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ISO Standards, which ensures proper contact between the \u003ca href=\"https:\/\/www.usarollerchain.com\/05B-Metric-Roller-Chain-p\/eco-05b-roller-chain.htm\" target=\"_blank\"\u003e05B-1 roller chain\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand sprocket thus preventing premature wear or breakage. 05A57 sprockets with a stock bore come with a 14 millimeter inside diameter plain hole and can be easily machine bored to custom sizes. If you are in need of a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information or to get a custom quote, please contact us and we will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e05A57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/03B_SPROCKETS_A_PLATE_DWG_8e3dc43a-9892-41e6-9137-3b207ad8625c.png?v=1737617004\" style=\"width: 107px;\" alt=\"05A57 Sprocket\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 05A57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003eOutside Diameter (OD): 158.6mm\u003c\/li\u003e\n\u003cli\u003ePitch Diameter (PD): 145.22mm\u003c\/li\u003e\n\u003cli\u003eStock Bore (ID): 14mm\u003c\/li\u003e\n\u003cli\u003eTooth Thickness (T): 2.8mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0.45 kg\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714057109871,"sku":"05A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/05A54-SPROCKET-2_57c5c889-d097-4685-a2e2-f64575e35a98.jpg?v=1756322938"},{"product_id":"05b57-sprocket","title":"05B57 Sprocket With Stock Bore","description":"This 05B57 sprocket is a durable, high quality, and precision sprocket with 57 teeth. Something else that is notable about this 05B57 sprocket is that it fully meets all ISO Standards, which ensures proper contact between the \u003ca href=\"https:\/\/www.usarollerchain.com\/05B-Metric-Roller-Chain-p\/eco-05b-roller-chain.htm\" target=\"_blank\"\u003e05B-1 roller chain\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand sprocket thus preventing premature wear or breakage. 05B57 sprockets with a stock bore come with the standard 14 millimeters inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes and include a key-way and set-screws. If you are needing a custom bore sprocket we the capabilities on providing those to within a fast lead time and at really great prices. For more information or to get a formal quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e05B57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/03B_SPROCKETS_B_HUB_DWG_7c27c242-19ef-4080-877b-aa8a87797d89.png?v=1737617008\" style=\"width: 141px;\" alt=\"05B57 Sprocket With Stock Bore\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 05B57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter (PD): 145.22mm\u003c\/li\u003e\n\u003cli\u003eOutside Diameter (OD): 148.6mm\u003c\/li\u003e\n\u003cli\u003eHub Diameter (H): 80mm\u003c\/li\u003e\n\u003cli\u003eStock Bore (ID): 14mm\u003c\/li\u003e\n\u003cli\u003eLength Thru Bore (L): 20mm\u003c\/li\u003e\n\u003cli\u003eTooth Thickness (T): 2.8mm\u003c\/li\u003e\n\u003cli\u003eWeight: 1.20 kg\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714059272559,"sku":"05B57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/05B45-SPROCKET-2_af18f295-708e-4881-84e7-c920fbb857a9.jpg?v=1756323020"},{"product_id":"06a57-sprocket","title":"06A57 Sprocket","description":"\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003eThis 06A57 sprocket is a durable, high quality, and precision A-Plate sprocket with 57 teeth that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ISO Standards, which insures proper contact between the \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"https:\/\/www.usarollerchain.com\/06B-1-Roller-Chain-s\/2547.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003e06B roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also evenly coated with black oxide, which adds resistance to to the environment and will prevent early rust build up. 06A57 sprockets with a stock bore comes with a 18 millimeter inside diameter plain hole and can be easily machine bored to custom sizes. If you are in need of a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information or to get a custom quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/inline\u003e\u003c\/i\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/06_A_SPK_243495d9-b7de-4a47-a28e-84dbd83ca619.png?v=1737617731\" style=\"width: 127px;\" alt=\"06A57 Sprocket\"\u003e\u003cbr\u003e\u003c\/b\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eSprocket Size: 06A57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eTooth Count: 57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003ePitch Diameter: 172.91mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eStock Bore: 18mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eSprocket Weight: 0.86 KG\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb style=\"font-size: 15px; text-align: center; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif;\"\u003e\u003cinline\u003e\u003cinline style=\"color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr\u003eEmail: \u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"color: rgb(6, 39, 75); outline: none 0px; text-align: center; font-family: Roboto, Helvetica, sans-serif; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003cb\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 18px;\"\u003esales@usarollerchain.com\u003c\/inline\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003ca href=\"https:\/\/www.usarollerchain.com\/Articles.asp?ID=258\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 18px;\"\u003eClick Here To See Our Other Products!\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714062418287,"sku":"06A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40A54-SPROCKET-2_b6f89f7c-8df1-4330-9b2f-ad4ee5c79578.jpg?v=1756323172"},{"product_id":"06b57-sprocket","title":"06B57 Sprocket With Stock Bore","description":"\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003eThis 06B57 sprocket is a durable, high quality, and precision sprocket with 57 teeth. Something that is notable about this 06B57 sprocket is that it fully meets all ISO Standards, which insures proper contact between the \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"https:\/\/www.usarollerchain.com\/06B-1-Roller-Chain-s\/2547.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003e06B roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also fully black oxide coated which increases resistance to the environment and will prevent early rust build up. 06B57 sprockets with a stock bore comes with the standard 19 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes. We also offer sprockets with finished bore configurations right off the shelf from stock, and if you are needing a custom bore sprocket we the capabilities on providing those to within a fast lead time and at really great prices. Fore more information or to get a formal quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/inline\u003e\u003c\/i\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/06B_DWG_316fc6aa-7378-46b7-b95e-3a799506d4f2.png?v=1737617786\" style=\"width: 215px;\" alt=\"06B57 Sprocket With Stock Bore\"\u003e\u003cbr\u003e\u003c\/b\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eSprocket Size: 06B57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eTooth Count: 57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003ePitch Diameter: 172.91mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eStock Bore: 19mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eMaximum Bore: 45mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eHub Diameter: 75mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eLength Thru Bore: 30mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eSprocket Weight: 1.27 KG\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cb style=\"font-size: 15px; text-align: center; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif;\"\u003e\u003cinline\u003e\u003cinline style=\"color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr\u003eEmail: \u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"color: rgb(6, 39, 75); outline: none 0px; text-align: center; font-family: Roboto, Helvetica, sans-serif; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003cb\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 18px;\"\u003esales@usarollerchain.com\u003c\/inline\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003ca href=\"https:\/\/www.usarollerchain.com\/Articles.asp?ID=258\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 18px;\"\u003eClick Here To See Our Other Products!\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714064875887,"sku":"06B57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40B54-SPROCKET-2_7aa0cd7c-acf4-4411-a7f6-26339767e42c.jpg?v=1756323271"},{"product_id":"06btb57-sprocket","title":"06BTB57 Sprocket (Taper Bushed)","description":"This 06BTB57 sprocket is a durable, high quality, and precision sprocket that is manufactured to accept a \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/1610-Taper-Lock-Bushings-s-3562\" target=\"_blank\"\u003e1610 bushing\u003c\/a\u003e, It is a \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/metric-sprockets-s-2437\" target=\"_blank\"\u003emetric roller chain sprocket\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ethat meets BS228\/3, ISO, and DIN standards; this ensures that the sprocket will have proper between the \u003ca href=\"https:\/\/www.usarollerchain.com\/06B-Metric-Roller-Chain-p\/eco-06b-roller-chain.htm\" target=\"_blank\"\u003e06B roller chain\u003c\/a\u003e and sprocket teeth, preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. 06BTB57 sprockets are bored to accept a \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/1610-Taper-Lock-Bushings-s-3562\" target=\"_blank\"\u003e1610 size taper bushing\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ewhich we also stock with a wide range of bore sizes. For more information about the 06BTB57 sprocket or to get a quote, please contact us and we will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e06BTB57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202019-01-09_20at_207.26.14_20PM_e1dfbd9a-5337-4d0e-ba87-eb65e19b7a74.png?v=1737617857\" style=\"width: 112px;\" alt=\"06BTB57 Sprocket (Taper Bushed)\"\u003e    \u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 06BTB57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 172.91mm\u003c\/li\u003e\n\u003cli\u003eBushing Type: 1610\u003c\/li\u003e\n\u003cli\u003eMaximum Bushing Bore: 41.28mm\u003c\/li\u003e\n\u003cli\u003eDimension (L) 25.40mm\u003c\/li\u003e\n\u003cli\u003eDimension (C): 82.55mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 1.25 kg\u003c\/li\u003e\n\u003cli\u003eBushing Weight: 0.41 kg     \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714066678127,"sku":"06BTB57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/06BTB54-SPROCKET-2_6b39e5c4-679b-4c97-8f32-b3cfac137972.jpg?v=1756323346"},{"product_id":"081a57-sprocket","title":"081A57 Sprocket","description":"This A-plate 081A57 sprocket with a stock bore is a metric roller chain sprocket manufactured under ISO and British Standard 228. Our 081A57 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. Besides the stock bore, we also can supply these sprockets with a specific bore size. We also offer upgrades on our 081A57 sprockets such as black-oxide coatings and heat-treated hardened teeth, though hardened tooth sprockets are typically not utilized on tooth counts past 30. Besides the 57 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/081B-Roller-Chain-Metric-081B-Roller-Chain-p\/081b-roller-chain.htm\" target=\"_blank\"\u003e081 roller chain\u003c\/a\u003e and a wide array of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote on 081A57 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e081A57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/081_A_DWG_9691d785-f0f8-4c7e-990d-70d118845a59.png?v=1737617881\" style=\"width: 83px;\" alt=\"081A57 Sprocket\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 081A57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter (O): 230.54mm\u003c\/li\u003e\n\u003cli\u003eOutside Diameter (K): 237.3mm\u003c\/li\u003e\n\u003cli\u003eStock Bore (D): 20mm\u003c\/li\u003e\n\u003cli\u003eSprocket Width: 3mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 1.00 kg\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714068578671,"sku":"081A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/25A18-SPROCKET-2_1970032d-fe45-4cb7-b5e8-bf5eac4948ac.jpg?v=1780430806"},{"product_id":"083a57-sprocket","title":"083A57 Sprocket","description":"This A-plate 083A57 sprocket with a stock bore is a metric roller chain sprocket manufactured under ISO and British Standard 228. Our 083A57 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. Besides the stock bore, we also can supply these sprockets with a specific bore size. We also offer upgrades on our 083A57 sprockets such as black-oxide coatings and heat-treated hardened teeth, though hardened tooth sprockets are typically not utilized on tooth counts past 30. Besides the 57 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/083B-Roller-Chain-Metric-083B-Roller-Chain-p\/083b-roller-chain.htm\" target=\"_blank\"\u003e083 roller chain\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand a wide array of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote on 083A57 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e083A57 Sprocket Dimensions\u003c\/h3\u003e\u003ch3\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/081_A_DWG_9691d785-f0f8-4c7e-990d-70d118845a59.png?v=1737617881\" style=\"font-size: 16px; font-weight: 400; color: rgb(48, 56, 71); width: 79px;\" alt=\"083A57 Sprocket\"\u003e\u003c\/h3\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 083A57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter (O): 230.54mm\u003c\/li\u003e\n\u003cli\u003eOutside Diameter (K): 237.3mm\u003c\/li\u003e\n\u003cli\u003eStock Bore (D): 20mm\u003c\/li\u003e\n\u003cli\u003eSprocket Width: 4.5mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 1.310 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714072150383,"sku":"083A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/25A18-SPROCKET-2_db77813e-897d-483b-9549-f12485311ba2.jpg?v=1780430816"},{"product_id":"085a57-sprocket","title":"085A57 Sprocket","description":"This A-plate 085A57 sprocket with a stock bore is a metric roller chain sprocket manufactured under ISO and British Standard 228. Our 085A57 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. Besides the stock bore, we also can supply these sprockets with a specific bore size. We also offer upgrades on our 085A57 sprockets such as black-oxide coatings and heat-treated hardened teeth, though hardened tooth sprockets are typically not utilized on tooth counts past 30. Besides the 57 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/085B-Roller-Chain-Metric-085B-Roller-Chain-p\/085b-roller-chain.htm\" target=\"_blank\"\u003e085 roller chain\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand a wide array of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote on 085A57 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e085A57 Sprocket Dimensions\u003c\/h3\u003e\u003ch3\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/081_A_DWG_9691d785-f0f8-4c7e-990d-70d118845a59.png?v=1737617881\" style=\"font-size: 16px; font-weight: 400; color: rgb(48, 56, 71); width: 84px;\" alt=\"085A57 Sprocket\"\u003e\u003c\/h3\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 085A57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter (O): 230.54mm\u003c\/li\u003e\n\u003cli\u003eOutside Diameter (K): 237.3mm\u003c\/li\u003e\n\u003cli\u003eStock Bore (D): 20mm\u003c\/li\u003e\n\u003cli\u003eSprocket Width: 5.9mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 1.7 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714075525487,"sku":"085A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/25A18-SPROCKET-2_20e71a9c-7931-4c3a-ab9f-d849af47fe07.jpg?v=1780430813"},{"product_id":"08a57-sprocket","title":"08A57 Sprocket","description":"\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003eThis 08A57 sprocket is a durable, high quality, and precision A-Plate sprocket with 57 teeth that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ISO Standards, which insures proper contact between the \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"https:\/\/www.usarollerchain.com\/08B-1-Roller-Chain-s\/2548.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003e08B-1 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also evenly coated with black oxide, which adds resistance to to the environment and will prevent early rust build up. 08A57 sprockets with a stock bore comes with a 18 millimeter inside diameter plain hole and can be easily machine bored to custom sizes. If you are in need of a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information or to get a custom quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/inline\u003e\u003c\/i\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/08_A_SPK_cfa71e51-aaef-4606-8bed-afd7df6b6b24.png?v=1737617931\" style=\"width: 121px;\" alt=\"08A57 Sprocket\"\u003e\u003cbr\u003e\u003c\/b\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eSprocket Size: 08A57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eTooth Count: 57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003ePitch Diameter: 230.54\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eStock Bore: 18mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eWeight: 2.27kg\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cb style=\"font-size: 15px; text-align: center; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif;\"\u003e\u003cinline\u003e\u003cinline style=\"color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr\u003eEmail: \u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"color: rgb(6, 39, 75); text-decoration-line: none; outline: none 0px; text-align: center; font-family: Roboto, Helvetica, sans-serif; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003cb\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 18px;\"\u003esales@usarollerchain.com\u003c\/inline\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003ca href=\"https:\/\/www.usarollerchain.com\/Articles.asp?ID=258\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 18px;\"\u003eClick Here To See Our Other Products!\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714080276847,"sku":"08A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40A54-SPROCKET-2_b20f16c5-f376-4987-a793-9bda98387087.jpg?v=1756323910"},{"product_id":"08b57-sprocket","title":"08B57 Sprocket With Stock Bore","description":"\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003eThis 08B57 sprocket is a durable, high quality, and precision sprocket with 57 teeth. Something that is notable about this 08B57 sprocket is that it fully meets all ISO Standards, which insures proper contact between the \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"https:\/\/www.usarollerchain.com\/08B-1-Roller-Chain-s\/2548.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003e08B-1 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also fully black oxide coated which increases resistance to the environment and will prevent early rust build up. 08B57 sprockets with a stock bore comes with the standard 19 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes. We also offer sprockets with finished bore configurations right off the shelf from stock, and if you are needing a custom bore sprocket we the capabilities on providing those to within a fast lead time and at really great prices. Fore more information or to get a formal quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/inline\u003e\u003c\/i\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/08B_DWG_d18208a5-cd9e-4331-8bfb-bcdc3405d2c6.png?v=1737618049\" style=\"width: 226px;\" alt=\"08B57 Sprocket With Stock Bore\"\u003e\u003cbr\u003e\u003c\/b\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eSprocket Size: 08B57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eTooth Count: 57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003ePitch Diameter: 230.54mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eStock Bore: 19mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eMaximum Bore: 64mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eHub Diameter: 100mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eLength Thru Bore: 35mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eWeight: 3.28kg\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cb style=\"font-size: 15px; text-align: center; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif;\"\u003e\u003cinline\u003e\u003cinline style=\"color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr\u003eEmail: \u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"color: rgb(6, 39, 75); text-decoration-line: none; outline: none 0px; text-align: center; font-family: Roboto, Helvetica, sans-serif; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003cb\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 18px;\"\u003esales@usarollerchain.com\u003c\/inline\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003ca href=\"https:\/\/www.usarollerchain.com\/Articles.asp?ID=258\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 18px;\"\u003eClick Here To See Our Other Products!\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714083619183,"sku":"08B57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40B54-SPROCKET-2_beccdd92-c0a1-49fa-9b11-5942c1d04b7e.jpg?v=1756324051"},{"product_id":"08btb57-sprocket","title":"08BTB57 Sprocket (Taper Bushed)","description":"This 08BTB57 sprocket is a metric taper bushed style roller chain sprocket manufactured under ISO and British Standard 228. and is made to accept a \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/1610-Taper-Lock-Bushings-s-3562\" target=\"_blank\"\u003e1610 taper bushing\u003c\/a\u003e. Our 08BTB57 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. We also offer upgrades on our 08BTB57 sprockets such as black-oxide coatings and heat-treated hardened teeth, though hardened tooth sprockets are typically not utilized on tooth counts past 30. Besides the 57 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/08B-1-Roller-Chain-s\/2548.htm\" target=\"_blank\"\u003e08B roller chain\u003c\/a\u003e, \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/1610-Taper-Lock-Bushings-s-3562\" target=\"_blank\"\u003e1610 bushings\u003c\/a\u003e, and a wide array of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote on taper bushed 08BTB57 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e08BTB57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202019-04-09_20at_2012.30.00_20PM_de270627-9bae-43e3-8dfd-f0c16d07a04e.png?v=1737618096\" style=\"width: 110px;\" alt=\"08BTB57 Sprocket (Taper Bushed)\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 08BTB57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 230.54mm\u003c\/li\u003e\n\u003cli\u003eBushing Size: 1610\u003c\/li\u003e\n\u003cli\u003eMaximum Bushing Bore: 41.28mm\u003c\/li\u003e\n\u003cli\u003eLength Thru Bore (L): 25.40mm\u003c\/li\u003e\n\u003cli\u003eHub Diameter (C): 76mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 2.63 kG\u003c\/li\u003e\n\u003cli\u003eBushing Weight: 0.41 kG\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714085060975,"sku":"08BTB57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/08BTB60-SPROCKET-2_4f64b015-5a3b-4ee5-a9e5-5313bd860906.jpg?v=1756324109"},{"product_id":"100a57-sprocket","title":"100A57 Sprocket","description":"\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003eThis 100A57 sprocket is a durable, high quality, and precision A-Plate sprocket with 57 teeth that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"http:\/\/www.usarollerchain.com\/100-roller-chain-s\/2262.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003e#100 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also evenly coated with black oxide, which adds resistance to to the environment and will prevent early rust build up. 100A57 sprockets with a stock bore comes with a 1-1\/2\" inside diameter plain hole and can be easily machine bored to custom sizes. If you are in need of a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information or to get a custom quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003cb\u003e\u003cinline\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003cb\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003e\u003ch3 style=\"\"\u003e100A57 Sprocket Dimensions\u003c\/h3\u003e\u003c\/inline\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/100_A_SPK_71d1ec9e-7326-4c9d-9300-bf24a5f76fcb.png?v=1737618305\" style=\"width: 129px;\" alt=\"100A57 Sprocket\"\u003e\u003cbr\u003e\u003c\/b\u003e\n\u003cul style=\"letter-spacing: normal;\"\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eSprocket Size: 100A57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eTooth Count: 57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eSprocket Type: A\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eOutside Diameter: 23.410\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eStock Bore: 1-1\/2\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eSprocket Weight: 75.8 LBS\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714095513967,"sku":"100A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/card_placeholder_img-new_1b1de227-16a1-4153-9c9f-fb279d63b191.png?v=1756324550"},{"product_id":"10a57-sprocket","title":"10A57 Sprocket","description":"\u003cb\u003eThis 10A57 sprocket is a durable, high quality, and precision A-Plate sprocket with 57 teeth that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ISO Standards, which insures proper contact between the \u003c\/b\u003e\u003ca href=\"https:\/\/www.usarollerchain.com\/10B-1-Roller-Chain-s\/2549.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003e10B-1 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also evenly coated with black oxide, which adds resistance to to the environment and will prevent early rust build up. 10A57 sprockets with a stock bore comes with a 25 millimeter inside diameter plain hole and can be easily machine bored to custom sizes. If you are in need of a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information or to get a custom quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/b\u003e\u003cb\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003e\u003ci\u003eDimensions:\u003c\/i\u003e\u003c\/inline\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/MTRK_A_PLT_SPK_f27fcf78-95d8-47df-8fad-b1d02c64eb52.png?v=1737618569\" style=\"width: 125px;\" alt=\"10A57 Sprocket\"\u003e\u003cbr\u003e\u003c\/b\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eSprocket Size: 10A57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eTooth Count: 57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eDimension (d0): 288.2mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eDimension (dk): 296mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eDimension (d1): 25mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eSprocket Weight: 4.24kg\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cinline\u003e\u003cinline style=\"color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr\u003eEmail: \u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"color: rgb(6, 39, 75); text-decoration-line: none; text-align: center; outline-style: none; font-family: Roboto, Helvetica, sans-serif; font-size: 15px; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cinline\u003e\u003cinline style=\"font-size: 18px;\"\u003e\u003cinline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003cb\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline style=\"font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714112291183,"sku":"10A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40A54-SPROCKET-2_aa22377b-e799-4e32-b6b3-7a0ffe669eb9.jpg?v=1756325268"},{"product_id":"10btb57-sprocket","title":"10BTB57 Sprocket (Taper Bushed)","description":"This 10BTB57 sprocket is a metric taper bushed style roller chain sprocket manufactured under ISO and British Standard 228. and is made to accept a \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/2012-Taper-Lock-Bushings-s-3564\" target=\"_blank\"\u003e2012 taper bushing\u003c\/a\u003e. Our 10BTB57 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. We also offer upgrades on our 10BTB57 sprockets such as black-oxide coatings and heat-treated hardened teeth, though hardened tooth sprockets are typically not utilized on tooth counts past 30. Besides the 57 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/10B-1-Roller-Chain-s\/2549.htm\" target=\"_blank\"\u003e10B roller chain\u003c\/a\u003e, \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/2012-Taper-Lock-Bushings-s-3564\" target=\"_blank\"\u003e2012 bushings\u003c\/a\u003e, and a wide array of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote on taper bushed 10BTB57 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e10BTB57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202019-04-13_20at_201.13.55_20PM_5e8f7e25-bf22-48d8-aa6e-94f9a29a5dc8.png?v=1737618600\" style=\"width: 105px;\" alt=\"10BTB57 Sprocket (Taper Bushed)\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 10BTB57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 288.18mm\u003c\/li\u003e\n\u003cli\u003eBushing Size: 2012\u003c\/li\u003e\n\u003cli\u003eMaximum Bushing Bore: 50.80mm\u003c\/li\u003e\n\u003cli\u003eLength Thru Bore (L): 31.75mm\u003c\/li\u003e\n\u003cli\u003eHub Diameter (C): 90.47mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 4.59 kG\u003c\/li\u003e\n\u003cli\u003eBushing Weight: 0.77 kG\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714117501295,"sku":"10BTB57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/08BTB32-SPROCKET-2_d1b441cf-1cf2-4278-a001-2db6778aae89.jpg?v=1780430841"},{"product_id":"12a57-sprocket","title":"12A57 Sprocket","description":"\u003cb\u003eThis 2A57 sprocket is a durable, high quality, and precision A-Plate sprocket with 57 teeth that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ISO Standards, which insures proper contact between the \u003c\/b\u003e\u003ca href=\"https:\/\/www.usarollerchain.com\/12B-1-Roller-Chain-s\/2550.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189);\"\u003e12B-1 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also evenly coated with black oxide, which adds resistance to to the environment and will prevent early rust build up. 2A57 sprockets with a stock bore comes with a 25 millimeter inside diameter plain hole and can be easily machine bored to custom sizes. If you are in need of a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information or to get a custom quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/b\u003e\u003cb\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003e\u003ci\u003eDimensions:\u003c\/i\u003e\u003c\/inline\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/MTRK_A_PLT_SPK_f27fcf78-95d8-47df-8fad-b1d02c64eb52.png?v=1737618569\" style=\"width: 125px;\" alt=\"12A57 Sprocket\"\u003e\u003cbr\u003e\u003cspan class=\"Apple-style-span\" style=\"font-weight: normal;\"\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eSprocket Size: 12A57 \u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eTooth Count: 57 \u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eDimension (d0): 345.8mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eDimension (dk): 355mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eDimension (d1): 25mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eSprocket Weight: 7.56kg\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cinline\u003e\u003cinline style=\"color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr\u003eEmail: \u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"color: rgb(6, 39, 75); text-align: center; outline-style: none; font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cinline\u003e\u003cinline style=\"font-size: 18px;\"\u003e\u003cinline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003cb\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline style=\"font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714143191407,"sku":"12A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40A54-SPROCKET-2_3840fbed-afc7-49e8-9cc8-3b555fcf1f2e.jpg?v=1756326599"},{"product_id":"12b57-sprocket","title":"12B57 Sprocket With Stock Bore","description":"This 12B57 sprocket with a stock bore is a metric roller chain sprocket manufactured under ISO and British Standard 228. Our 12B57 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. Besides the stock bore we also can supply these sprockets with a specific plain or finished (has key-way and set screws) bore size. We also offer upgrades on our 12B57 sprockets such as black-oxide coatings and heat-treated hardened teeth, though hardened tooth sprockets are typically not utilized on tooth counts past 30. Besides the 57 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/12B-metric-roller-chain-p\/eco-12b-roller-chain.htm\" target=\"_blank\"\u003e12B roller chain\u003c\/a\u003e and a wide array of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote on 12B57 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e12B57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/12B_SPK_MDWG_2a64a3f4-5e1b-4b81-8898-69faa5bd1387.png?v=1737618966\" style=\"width: 131px;\" alt=\"12B57 Sprocket With Stock Bore\"\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 12B57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 345.81mm\u003c\/li\u003e\n\u003cli\u003eStock Bore: 32mm\u003c\/li\u003e\n\u003cli\u003eMaximum Recommended Bore: 70mm\u003c\/li\u003e\n\u003cli\u003eHub Diameter: 110mm\u003c\/li\u003e\n\u003cli\u003eLength Thru Bore (LTB): 45mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 10.10 kg  \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714147058031,"sku":"12B57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/12B54-SPROCKET-2_09057e48-6834-4231-aebf-9a5d210144b5.jpg?v=1756326754"},{"product_id":"12btb57-sprocket","title":"12BTB57 Sprocket (Taper Bushed)","description":"This 12BTB57 sprocket is a metric taper bushed style roller chain sprocket manufactured under ISO and British Standard 228 and is made to accept a \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/2517-Taper-Lock-Bushings-s-3565\" target=\"_blank\"\u003e2517 taper bushing\u003c\/a\u003e. Our 12BTB57 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. We also offer upgrades on our 12BTB57 sprockets such as black-oxide coatings and heat-treated hardened teeth, though hardened tooth sprockets are typically not utilized on tooth counts past 30. Besides the 57 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/12B-metric-roller-chain-p\/eco-12b-roller-chain.htm\" target=\"_blank\"\u003e12B-1 roller chain\u003c\/a\u003e, \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/2517-Taper-Lock-Bushings-s-3565\" target=\"_blank\"\u003e2517 bushing\u003c\/a\u003e, and a wide array of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote on taper bushed 12BTB57 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e12BTB57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/12BTB_SPK_MDWG_34fa51f7-175e-4fee-bb8e-c01f2a2c748f.png?v=1737618980\" style=\"width: 118px;\" alt=\"12BTB57 Sprocket (Taper Bushed)\"\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 12BTB57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 345.81mm\u003c\/li\u003e\n\u003cli\u003eBushing Size: 2517\u003c\/li\u003e\n\u003cli\u003eMaximum Bushing Bore: 63.50mm\u003c\/li\u003e\n\u003cli\u003eDimension (L): 44.45mm\u003c\/li\u003e\n\u003cli\u003eDimension (C): 107.95mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 8.76 kg\u003c\/li\u003e\n\u003cli\u003eBushing Weight: 1.59 kg  \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714148467055,"sku":"12BTB57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/12BTB45-SPROCKET-2_73eb040f-977c-4cb4-82a3-819cb664469f.jpg?v=1756326814"},{"product_id":"16a57-sprocket","title":"16A57 Sprocket","description":"\u003cb\u003eThis 16A57 sprocket is a durable, high quality, and precision A-Plate sprocket with 57 teeth that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ISO Standards, which insures proper contact between the \u003c\/b\u003e\u003ca href=\"https:\/\/www.usarollerchain.com\/16B-1-Roller-Chain-s\/2551.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189);\"\u003e16B-1 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also evenly coated with black oxide, which adds resistance to to the environment and will prevent early rust build up. 16A57 sprockets with a stock bore comes with a 30 millimeter inside diameter plain hole and can be easily machine bored to custom sizes. If you are in need of a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information or to get a custom quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/b\u003e\u003cb\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/inline\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/16B_A_PLT_SPK_5c1982f1-a238-46ee-8667-189f16d14a76.png?v=1737619173\" style=\"width: 153px;\" alt=\"16A57 Sprocket\"\u003e\u003cbr\u003e\u003c\/b\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eSprocket Size: 16A57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eTooth Count: 57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eDimension (d0): 461.1mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eDimension (dk): 474mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eDimension (d1): 30mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eSprocket Weight: 18.9kg\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif;\"\u003e\u003cinline\u003e\u003cinline style=\"color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr\u003eEmail: \u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"color: rgb(6, 39, 75); text-decoration-line: none; text-align: center; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; outline-style: none; font-family: Roboto, Helvetica, sans-serif;\"\u003e\u003cinline\u003e\u003cinline style=\"font-size: 18px;\"\u003e\u003cinline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003cb\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline style=\"font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714174550383,"sku":"16A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40A54-SPROCKET-2_acc9da9a-007c-4d62-85dc-68efbc6265f6.jpg?v=1756327957"},{"product_id":"16btb57-sprocket","title":"16BTB57 Sprocket (Taper Bushed)","description":"This 16BTB57 sprocket is a metric taper bushed style roller chain sprocket manufactured under ISO and British Standard 228. and is made to accept a \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/2517-Taper-Lock-Bushings-s-3565\" target=\"_blank\"\u003e 2517 taper bushing\u003c\/a\u003e. Our 16BTB57 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. We also offer upgrades on our 16BTB57 sprockets such as black-oxide coatings and heat-treated hardened teeth, though hardened tooth sprockets are typically not utilized on tooth counts past 30. Besides the 57 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/16B-Metric-Roller-Chain-p\/eco-16b-roller-chain.htm\" target=\"_blank\"\u003e16B roller chain\u003c\/a\u003e, \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/2517-Taper-Lock-Bushings-s-3565\" target=\"_blank\"\u003e2517 bushings\u003c\/a\u003e, and a wide array of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote on taper bushed 16BTB57 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e16BTB57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/16B_SPK_MDWG_547f5788-cf27-409d-955a-a77b5e8e8213.png?v=1737619214\" style=\"width: 124px;\" alt=\"16BTB57 Sprocket (Taper Bushed)\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 16BTB57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 461.07mm\u003c\/li\u003e\n\u003cli\u003eBushing Size: 2517\u003c\/li\u003e\n\u003cli\u003eMaximum Bushing Bore Size: 63.50mm\u003c\/li\u003e\n\u003cli\u003eLength Thru Bore (L): 44.45mm\u003c\/li\u003e\n\u003cli\u003eHub Diameter (C): 107.95mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 19.16 kG\u003c\/li\u003e\n\u003cli\u003eBushing Weight: 1.59 kG         \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714179400047,"sku":"16BTB57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/08BTB32-SPROCKET-2_fba67f5e-5179-4a00-bd40-c22c09ff3b7a.jpg?v=1780430857"},{"product_id":"20a57-sprocket","title":"20A57 Sprocket","description":"\u003cb\u003eThis 20A57 sprocket is a durable, high quality, and precision A-Plate sprocket with 57 teeth that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ISO Standards, which insures proper contact between the \u003c\/b\u003e\u003ca href=\"https:\/\/www.usarollerchain.com\/20B-1-Roller-Chain-s\/2552.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189);\"\u003e20B-1 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also evenly coated with black oxide, which adds resistance to to the environment and will prevent early rust build up. 20A57 sprockets with a stock bore comes with a 30 millimeter inside diameter plain hole and can be easily machine bored to custom sizes. If you are in need of a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information or to get a custom quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/b\u003e\u003cb\u003e\u003cbr\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/inline\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/20B_A_Plate_DWG_d104c339-69b9-41e9-9437-599ee0a21889.png?v=1737619634\" style=\"width: 168px;\" alt=\"20A57 Sprocket\"\u003e\u003cbr\u003e\u003c\/b\u003e\u003cul style=\"letter-spacing: normal; background-color: rgb(255, 255, 255);\"\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eSprocket Size: 20A57 \u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eTooth Count: 57 \u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eOutside Diameter: 592 mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eStock Bore: 30 mm\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(192, 80, 77);\"\u003eWeight: 34.50 kg\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb style=\"text-align: center; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cinline\u003e\u003cinline style=\"color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr\u003eEmail: \u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"color: rgb(6, 39, 75); outline: none 0px; text-align: center; font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cinline\u003e\u003cinline style=\"font-size: 18px;\"\u003e\u003cinline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003cb\u003e\u003cinline\u003e\u003cinline\u003e\u003cinline style=\"font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714216100207,"sku":"20A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40A54-SPROCKET-2_74ec30c8-f2c3-4b28-b4c3-b7fa48a8a460.jpg?v=1756329984"},{"product_id":"20btb57-sprocket","title":"20BTB57 Sprocket (Taper Bushed)","description":"This 20BTB57 sprocket is a metric taper bushed style roller chain sprocket manufactured under ISO and British Standard 228. and is made to accept a \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/3020-Taper-Lock-Bushing-s-3572\" target=\"_blank\"\u003e3020 taper bushing\u003c\/a\u003e. Our 20BTB57 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. We also offer upgrades on our 20BTB57 sprockets such as black-oxide coatings and heat-treated hardened teeth, though hardened tooth sprockets are typically not utilized on tooth counts past 30. Besides the 57 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/20B-Metric-Roller-Chain-p\/eco-20b-roller-chain.htm\" target=\"_blank\"\u003e20B roller chain\u003c\/a\u003e, \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/3020-Taper-Lock-Bushing-s-3572\" target=\"_blank\"\u003e3020 bushing\u003c\/a\u003e, and a wide array of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote on taper bushed 20BTB57 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e20BTB57 Sprocket Dimensions\u003c\/h3\u003e\u003ch3\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/20BTB_SPK_MWG_9326ed9e-bd52-4353-9bb1-f48fa1722fd5.png?v=1737619653\" style=\"font-size: 16px; font-weight: 400; color: rgb(48, 56, 71); width: 119px;\" alt=\"20BTB57 Sprocket (Taper Bushed)\"\u003e\u003c\/h3\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 20BTB57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 576.35mm\u003c\/li\u003e\n\u003cli\u003eBushing Size: 3020\u003c\/li\u003e\n\u003cli\u003eMaximum Bushing Bore Size: 76.20mm\u003c\/li\u003e\n\u003cli\u003eLength Thru Bore (L): 50.80mm\u003c\/li\u003e\n\u003cli\u003eHub Diameter (C): 133.35mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 37.82 kG\u003c\/li\u003e\n\u003cli\u003eBushing Weight: 2.95 kG \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714219180399,"sku":"20BTB57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/D08BTB18-SPROCKET-2_2ada2bba-896d-4a79-bf52-b44af3083dee.jpg?v=1780430864"},{"product_id":"24a57-sprocket","title":"24A57 Sprocket","description":"This 24A57 sprocket is a durable, high quality, and precision \u003ca href=\"https:\/\/www.usarollerchain.com\/Metric-Sprockets-s\/2437.htm\" target=\"_blank\"\u003emetric roller sprocket\u003c\/a\u003e with 57 teeth. Something that is notable about this 24A57 sprocket is that it fully meets all ISO Standards, which insures proper contact between the \u003ca href=\"https:\/\/www.usarollerchain.com\/24B-1-Roller-Chain-s\/2553.htm\" target=\"_blank\"\u003e24B roller chain\u003c\/a\u003e and sprocket thus preventing premature wear or breakage. This 24A57 sprocket has a 30mm stock bore but this can be re-sized upon request. We also offer sprockets with finished bore configurations right off the shelf from stock, and if you are needing a custom bore sprocket we the capabilities on providing those to within a fast lead time and at really great prices. Fore more information or to get a formal quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cinline style=\"font-size: 18px;\"\u003eDimensions:\u003c\/inline\u003e\u003c\/b\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202017-09-20_20at_209.09.34_20AM_8afe2b00-1f29-47ae-a3ed-31cac68c812f.png?v=1737620704\" style=\"width: 143px;\" alt=\"24A57 Sprocket\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003e\u003cb\u003eSprocket Size: 24A57\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eTooth Count: 57\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003ePitch Diameter (d0): 691.6mm\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eOutside Diameter (dk): 706mm\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eStock Bore (d1): 30mm\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eSprocket Thickness (bf1): mm\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eSprocket Weight: 62KG\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714387149167,"sku":"24A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/24A8-SPROCKET-2_e5a5a8ef-4d09-493d-bd5b-ba30dfb73bd3.jpg?v=1756338194"},{"product_id":"24c57-sprocket","title":"24C57 Sprocket With Stock Bore","description":"This 24C57 sprocket with a stock bore is a metric roller chain sprocket manufactured under ISO and British Standard 228. Our 24C57 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. Besides the stock bore we also can supply these sprockets with a specific plain or finished (has key-way and set screws) bore size. We also offer upgrades on our 24C57 sprockets such as black-oxide coatings and heat-treated hardened teeth, though hardened tooth sprockets are typically not utilized on tooth counts past 30. Besides the 57 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/24B-Metric-Roller-Chain-p\/eco-24b-roller-chain.htm\" target=\"_blank\"\u003e24B roller chain\u003c\/a\u003e and a wide array of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote on 24C57 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e24C57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202019-06-06_20at_203.52.34_20PM_df02647b-1eb0-4c02-a7c4-887508753e10.png?v=1737620725\" style=\"width: 149px;\" alt=\"24C57 Sprocket With Stock Bore\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 24C57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 691.62mm\u003c\/li\u003e\n\u003cli\u003eStock Bore: 40mm\u003c\/li\u003e\n\u003cli\u003eMaximum Recommended Bore: 133mm\u003c\/li\u003e\n\u003cli\u003eHub Diameter (H): 178mm\u003c\/li\u003e\n\u003cli\u003eLength Thru Bore (L): 102mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 76.05 kG\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714390032751,"sku":"24C57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/32C45-SPROCKET-2_347f1b1d-8756-4d79-9b6c-c841f4669ed4.jpg?v=1780430869"},{"product_id":"24ctb57-sprocket","title":"24CTB57 Sprocket","description":"This 24CTB57 sprocket is a durable, high quality, and precision taper bushed sprocket with 57 teeth that is manufactured out of high-quality steel. It uses a \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/3535-Taper-Lock-Bushing-s-3574\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189);\"\u003e3535 taper bushing\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand is manufactured in accordance with ISO standards, which ensures proper contact between the \u003ca href=\"https:\/\/www.usarollerchain.com\/24B-Metric-Roller-Chain-p\/eco-24b-roller-chain.htm\" target=\"_blank\"\u003e \u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189);\"\u003e24B roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand sprocket thus preventing premature wear or breakage. The benefit of using a 24BTB57 taper bushed style sprocket is that a bushing has a broad range of bore sizes and are typically in-stock. For more information or to get a quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e24BTB57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/24CTB_DWG_e9fced5d-5db4-43e0-a3f7-bf646dc92372.png?v=1737620736\" style=\"width: 108px;\" alt=\"24CTB57 Sprocket\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSize: 24CTB57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 691.62mm\u003c\/li\u003e\n\u003cli\u003eBushing Size: 3535\u003c\/li\u003e\n\u003cli\u003eMaximum Bushing Bore: 88.90mm\u003c\/li\u003e\n\u003cli\u003eDimension (L): 88.90mm\u003c\/li\u003e\n\u003cli\u003eDimension (C): 165.10mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 71.46 kg\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714390196591,"sku":"24CTB57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/24CTB48-SPROCKET-2_3db687a0-8fc8-420c-8317-b193789fdce7.jpg?v=1756338306"},{"product_id":"28a57-sprocket","title":"28A57 Sprocket","description":"This 28A57 sprocket with a stock bore is a metric A-plate roller chain sprocket manufactured under ISO and British Standard 228. Our 28A57 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. Besides the stock bore we also can supply these sprockets with a specific bore size or even as an \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/idler-sprockets-s-3393\" target=\"_blank\"\u003eidler sprocket\u003c\/a\u003e configuration. We also offer upgrades on our 28A57 sprockets such as black-oxide coatings and heat-treated hardened teeth. Besides the 57 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/28B-Metric-Roller-Chain-p\/eco-28b-roller-chain.htm\" target=\"_blank\"\u003e28B roller chain\u003c\/a\u003e and a wide array of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote on 28A57 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e28A57 Sprocket Dimensions\u003c\/h3\u003e\u003ch3\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/28A_DWG_a9404863-0b91-484a-b4b9-04efa4c0b3f0.png?v=1737620921\" style=\"font-size: 16px; font-weight: 400; color: rgb(48, 56, 71); width: 126px;\" alt=\"28A57 Sprocket\"\u003e\u003c\/h3\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 28A57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 806.89mm\u003c\/li\u003e\n\u003cli\u003eStock Bore: 40mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 88.67 kG\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714449604975,"sku":"28A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/32A60-SPROCKET-2_acea6de7-6633-4ab8-ab90-0ed5dcc262be.jpg?v=1780430873"},{"product_id":"28c57-sprocket","title":"28C57 Sprocket With Stock Bore","description":"This 28C57 sprocket with a stock bore is a metric roller chain sprocket manufactured under ISO and British Standard 228. Our 28C57 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. Besides the stock bore we also can supply these sprockets with a specific plain or finished (has key-way and set screws) bore size. We also offer upgrades on our 28C57 sprockets such as black-oxide coatings and heat-treated hardened teeth, though hardened tooth sprockets are typically not utilized on tooth counts past 30. Besides the 57 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/28B-Metric-Roller-Chain-p\/eco-28b-roller-chain.htm\" target=\"_blank\"\u003e28B roller chain\u003c\/a\u003e and a wide array of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote on 28C57 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e28C57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/28B_SPK_DWG12_c60317f1-bc08-4ee6-84e0-6f536863c8c0.png?v=1737620937\" style=\"width: 134px;\" alt=\"28C57 Sprocket With Stock Bore\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 28C57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 806.89mm\u003c\/li\u003e\n\u003cli\u003eStock Bore: 40mm\u003c\/li\u003e\n\u003cli\u003eMaximum Recommended Bore: 134mm\u003c\/li\u003e\n\u003cli\u003eHub Dia Diameter (H): 178mm\u003c\/li\u003e\n\u003cli\u003eLength Thru Bore (L): 127mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 81.77 kG\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714450719087,"sku":"28C57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/32C45-SPROCKET-2_2be73609-3f00-47f3-922e-6678917ecfd0.jpg?v=1780430873"},{"product_id":"28ctb57-sprocket","title":"28CTB57 Sprocket (Taper Bushed)","description":"This 28CTB57 sprocket is a metric taper bushed style roller chain sprocket manufactured under ISO and British Standard 228. and is made to accept a \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/4040-Taper-Lock-Bushing-s-3575\" target=\"_blank\"\u003e4040 bushing\u003c\/a\u003e. Our 28CTB57 sprockets are made with reliability and performance in mind, so we use high-quality carbon steel (CS) and have the sprocket precision cut to ensure maximum performance and wear life. We also offer upgrades on our 28CTB57 sprockets such as black-oxide coatings and heat-treated hardened teeth, though hardened tooth sprockets are typically not utilized on tooth counts past 30. Besides the 57 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/28B-Metric-Roller-Chain-p\/eco-28b-roller-chain.htm\" target=\"_blank\"\u003e28B roller chain\u003c\/a\u003e, \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/4040-Taper-Lock-Bushing-s-3575\" target=\"_blank\"\u003e4040 bushings\u003c\/a\u003e, and a wide array of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote on taper bushed 28CTB57 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e28CTB57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/28CTB_SP_DW_58ee50fc-4a66-4cb1-9a8f-84b86d361fb5.png?v=1737620948\" style=\"width: 119px;\" alt=\"28CTB57 Sprocket (Taper Bushed)\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: 28CTB57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 806.90mm\u003c\/li\u003e\n\u003cli\u003eBushing Size: 4040\u003c\/li\u003e\n\u003cli\u003eMaximum Bushing Bore: 101.60mm\u003c\/li\u003e\n\u003cli\u003eLength Thru Bore (L): 101.60mm\u003c\/li\u003e\n\u003cli\u003eHub Diameter (C): 219.08mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 72.64 kG\u003c\/li\u003e\n\u003cli\u003eBushing Weight: 9.99 kG\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714450948463,"sku":"28CTB57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/32CTB48-SPROCKET-2_e3bd0454-02ae-400e-8d87-f5cdc30128e8.jpg?v=1780430873"},{"product_id":"32a57-sprocket","title":"32A57 Sprocket","description":"This 32A57 sprocket is a durable, high quality, and precision A-Plate sprocket with 57 teeth that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ISO Standards, which ensures proper contact between the \u003ca href=\"https:\/\/www.usarollerchain.com\/32B-metric-roller-chain-p\/eco-32b-roller-chain.htm\"\u003e32B roller chain\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand sprocket thus preventing premature wear or breakage. The stock bore on a 32A57 sprocket is 40 millimeters but we can custom bore the sprocket to a specific bore size with our in-house machine shop facility. For additional information or to get a quote, please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e32A57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/32B_A_Plate_DWG_cfe7d2f0-d695-4a3e-baa2-d774f460c737.png?v=1737621186\" style=\"width: 106px;\" alt=\"32A57 Sprocket\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSize: 32A57\u003c\/li\u003e\n\u003cli\u003eStock Bore: 40mm\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003eWeight: 146.21 kg                        \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714493383023,"sku":"32A57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/32A45-SPROCKET-2_ceacad74-f459-43bf-9488-c5a1ea6d8477.jpg?v=1756343006"},{"product_id":"32ctb57-sprocket","title":"32CTB57 Sprocket","description":"This 32CTB57 sprocket is a durable, high quality, and precision taper bushed sprocket with 57 teeth that is manufactured out of high-quality steel. It uses a \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/4545-Taper-Lock-Bushing-s-3576\" target=\"_blank\"\u003e4545 taper bushing\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand is manufactured in accordance with ISO standards, which ensures proper contact between the \u003ca href=\"https:\/\/www.usarollerchain.com\/32B-metric-roller-chain-p\/eco-32b-roller-chain.htm\"\u003e32B roller chain\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand sprocket thus preventing premature wear or breakage. The benefit of using a 32CTB57 taper bushed style sprocket is that a bushing has a broad range of bore sizes and are typically in-stock. For more information or to get a quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e32CTB57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/32B_CTB_DWG_4a6894d4-415c-42f1-a903-b32973bfe9db.png?v=1737621221\" style=\"width: 131px;\" alt=\"32CTB57 Sprocket\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSize: 32CTB57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 922.16mm\u003c\/li\u003e\n\u003cli\u003eBushing Size: 4545\u003c\/li\u003e\n\u003cli\u003eMaximum Bushing Bore: 114.30mm\u003c\/li\u003e\n\u003cli\u003eDimension (L): 114.30mm\u003c\/li\u003e\n\u003cli\u003eDimension (C): 247.65mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 136.20 kg                            \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714495447407,"sku":"32CTB57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/32CTB48-SPROCKET-2_e895b987-6c11-4030-880a-56612d691fd3.jpg?v=1756343085"},{"product_id":"32c57-sprocket","title":"32C57 Sprocket","description":"This 32C57 sprocket is a durable, high quality, and precision sprocket with 57 teeth. Something that is notable about this 32C57 sprocket is that it fully meets all ISO Standards, which ensures proper contact between the \u003ca href=\"https:\/\/www.usarollerchain.com\/32B-metric-roller-chain-p\/eco-32b-roller-chain.htm\" target=\"_blank\"\u003e32B-1 roller chain\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand sprocket thus preventing premature wear or breakage. The standard stock bore for a 32C57 sprocket is 40 millimeters and has no key-way or set screws. We supply 32C57 sprockets with a finished bore configuration in any bore sizes needed with a key-way and set screws from our in-house machine shop facility. For more information or to get a quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003e32C57 Sprocket Dimensions\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/32B_C_HUB_DWG_14519640-b871-4ab1-b302-0497eca0ff44.png?v=1737621217\" style=\"width: 159px;\" alt=\"32C57 Sprocket\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSize: 32C57\u003c\/li\u003e\n\u003cli\u003eTooth Count: 57\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 922.16mm\u003c\/li\u003e\n\u003cli\u003eStock Bore: 40mm\u003c\/li\u003e\n\u003cli\u003eMaximum Recommended Bore: 139mm\u003c\/li\u003e\n\u003cli\u003eHub Diameter: 203mm\u003c\/li\u003e\n\u003cli\u003eLength Thru Bore (LTB): 127mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 170.79 kg                   \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714495545711,"sku":"32C57-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/32C45-SPROCKET-2_abe71858-3bce-45b6-8e9c-86269cd210c7.jpg?v=1756343088"},{"product_id":"40a57-sprocket","title":"40A57 ANSI Sprocket 40A57 ANSI Sprocket","description":"\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003eThis 40A57 sprocket is a durable, high quality, and precision A-Plate sprocket that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also evenly coated with black oxide, which adds resistance to to the environment and will prevent early rust build up. 40A57 sprockets with a stock bore comes with a 23\/32\" inside diameter plain hole and can be easily machine bored to custom sizes. If you are in need of a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information or to get a custom quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003e\u003ch3\u003e40A57 Sprocket Dimensions:\u003c\/h3\u003e\u003c\/span\u003e\u003c\/i\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40_A_SPK_aa54e4de-5d14-4136-af71-c16bcc713333.png?v=1737621985\" style=\"width: 133px;\" alt=\"40A57 Sprocket\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\n\u003cul\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSprocket Size: 40A57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSprocket Type: A-Plate\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTooth Count: 57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eOutside Diameter: 9.360\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eBore Size: 23\/32\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWeight: 5.00 LBS\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cb\u003e\u003cspan\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003e\nEmail: \u003c\/inline\u003e\u003c\/span\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); text-align: center; box-sizing: inherit; outline-style: none; font-family: Roboto, Helvetica, sans-serif; font-size: 15px; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714547384687,"sku":"40A57-SPROCKET","price":97.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40A54-SPROCKET-2_af3dd779-f47d-4286-a6c3-86566bbc0afa.jpg?v=1756345545"},{"product_id":"40b57-sprocket","title":"40B57 Sprocket With Stock Bore","description":"\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003eThis 40B57 sprocket is a durable, premium quality, and precision sprocket that is manufactured out of high-quality steel. This sprocket is manufactured for optimum performance, durability, and to strict quality control standards. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #40 roller chain and sprocket which prevents premature wear or breakage. It is also black oxide coated which increases resistance to the environment and will prevent early rust build up. 40B57 sprockets with a stock bore comes with the standard 3\/4\" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes. We also offer sprockets with finished bore configurations right off the shelf from stock, and if you are needing a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information, sprocket re-boring, MTO sprockets, or large quantities please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003e\u003ci\u003eDimensions:\u003c\/i\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202016-07-27_20at_209.02.13_20AM_fe49c249-11b2-474a-b777-668ff7941c09.png?v=1737383999\" style=\"width: 229px;\" alt=\"40B57 Sprocket With Stock Bore\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cul style=\"background-color: rgb(255, 255, 255);\"\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eSprocket Size: 40B57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eOutside Diameter: 9.360\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Type: B\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eStock Bore: 3\/4\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eRecommended Max Bore: 2-3\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Diameter: 3-1\/2\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eLength Through Bore: 1-1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eWeight: 7.02 LBS\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003eEmail: \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714549809519,"sku":"40B57-SPROCKET","price":94.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40B54-SPROCKET-2_e87f20a5-b242-4a7c-bd44-40313f507d3c.jpg?v=1756345670"},{"product_id":"40bs57-1-12-sprocket","title":"40BS57 High-Performance Sprocket 1-1\/2\"","description":"\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003eThis 40BS57 sprocket features a 1-1\/2\" finished bore including a key-way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets, custom bore and made to order sprockets, and a full line of #40 roller chain. Fore more information, large quantities, or to get a custom sprocket please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/span\u003e\u003c\/i\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202016-08-01_20at_2011.10.39_20AM_e88c2366-0908-490b-a86d-550668d2f302.png?v=1737622013\" style=\"width: 162px;\" alt='40BS57 Sprocket With 1-1\/2\" Finished Bore'\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eSprocket Size: 40BS57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eOutside Diameter: 9.360\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Type: B\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eBore Size: 1-1\/2\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eKeyway Size: 3\/8\" X 3\/16\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Diameter: 3-1\/2\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eLength Through Bore: 1-1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eWeight: 7.02 LBS\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eCommon Interchanges: 40BS57H, H40BS57, 40BS57-FB\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003eEmail: \u003c\/inline\u003e\u003c\/span\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; font-size: 15px; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714564096367,"sku":"40BS57-1-12-SPROCKET","price":96.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40BS54-1-12-SPROCKET-2_8482199a-7ef5-483a-b592-b5140740bb85.jpg?v=1756346454"},{"product_id":"40bs57-1-18-sprocket","title":"40BS57 High-Performance Sprocket 1-1\/8\"","description":"\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003eThis 40BS57 sprocket features a 1-1\/8\" finished bore including a key-way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets, custom bore and made to order sprockets, and a full line of #40 roller chain. Fore more information, large quantities, or to get a custom sprocket please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/span\u003e\u003c\/i\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202016-08-01_20at_2011.10.39_20AM_e88c2366-0908-490b-a86d-550668d2f302.png?v=1737622013\" style=\"width: 162px;\" alt='40BS57 Sprocket With 1-1\/8\" Finished Bore'\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eSprocket Size: 40BS57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eOutside Diameter: 9.360\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Type: B\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eBore Size: 1-1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eKeyway Size: 1\/4\" X 1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Diameter: 3-1\/2\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eLength Through Bore: 1-1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eWeight: 7.02 LBS\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eCommon Interchanges: 40BS57H, H40BS57, 40BS57-FB\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003eEmail: \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; font-size: 15px; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714564292975,"sku":"40BS57-1-18-SPROCKET","price":96.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40BS54-1-12-SPROCKET-2_e94ae606-399b-4a06-bf44-c32f3d150191.jpg?v=1756346463"},{"product_id":"40bs57-1-14-sprocket","title":"40BS57 High-Performance Sprocket 1-1\/4\"","description":"\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003eThis 40BS57 sprocket features a 1-1\/4\" finished bore including a key-way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets, custom bore and made to order sprockets, and a full line of #40 roller chain. Fore more information, large quantities, or to get a custom sprocket please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/span\u003e\u003c\/i\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202016-08-01_20at_2011.10.39_20AM_e88c2366-0908-490b-a86d-550668d2f302.png?v=1737622013\" style=\"width: 162px;\" alt='40BS57 Sprocket With 1-1\/4\" Finished Bore'\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eSprocket Size: 40BS57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eOutside Diameter: 9.360\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Type: B\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eBore Size: 1-1\/4\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eKeyway Size: 1\/4\" X 1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Diameter: 3-1\/2\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eLength Through Bore: 1-1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eWeight: 7.02 LBS\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eCommon Interchanges: 40BS57H, H40BS57, 40BS57-FB\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003eEmail: \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; font-size: 15px; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714564358511,"sku":"40BS57-1-14-SPROCKET","price":96.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40BS54-1-12-SPROCKET-2_b686dd02-f37b-4de2-840e-ab9ce1b027df.jpg?v=1756346466"},{"product_id":"40bs57-1-716-sprocket","title":"40BS57 Sprocket With 1-7\/16\" Finished Bore","description":"\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003eThis 40BS57 sprocket features a 1-7\/16\" finished bore including a key-way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets, custom bore and made to order sprockets, and a full line of #40 roller chain. Fore more information, large quantities, or to get a custom sprocket please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/span\u003e\u003c\/i\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202016-08-01_20at_2011.10.39_20AM_e88c2366-0908-490b-a86d-550668d2f302.png?v=1737622013\" style=\"width: 162px;\" alt='40BS57 Sprocket With 1-7\/16\" Finished Bore'\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eSprocket Size: 40BS57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eOutside Diameter: 9.360\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Type: B\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eBore Size: 1-7\/16\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eKeyway Size: 3\/8\" X 3\/16\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Diameter: 3-1\/2\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eLength Through Bore: 1-1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eWeight: 7.02 LBS\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eCommon Interchanges: 40BS57H, H40BS57, 40BS57-FB\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003eEmail: \u003c\/inline\u003e\u003c\/span\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; font-size: 15px; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714564653423,"sku":"40BS57-1-716-SPROCKET","price":96.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40BS54-1-12-SPROCKET-2_f4947a9a-83df-4372-bf0f-ae29488648da.jpg?v=1756346486"},{"product_id":"40bs57-1-sprocket","title":"40BS57 Sprocket With 1\" Finished Bore","description":"\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003eThis 40BS57 sprocket features a 1\" finished bore including a key-way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets, custom bore and made to order sprockets, and a full line of #40 roller chain. Fore more information, large quantities, or to get a custom sprocket please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/span\u003e\u003c\/i\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202016-08-01_20at_2011.10.39_20AM_e88c2366-0908-490b-a86d-550668d2f302.png?v=1737622013\" style=\"width: 162px;\" alt='40BS57 Sprocket With 1\" Finished Bore'\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eSprocket Size: 40BS57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eOutside Diameter: 9.360\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Type: B\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eBore Size: 1\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eKeyway Size: 1\/4\" X 1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Diameter: 3-1\/2\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eLength Through Bore: 1-1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eWeight: 7.02 LBS\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eCommon Interchanges: 40BS57H, H40BS57, 40BS57-FB\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003eEmail: \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; font-size: 15px; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714564686191,"sku":"40BS57-1-SPROCKET","price":96.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40BS54-1-12-SPROCKET-2_35c85d50-757b-44eb-a64d-c54102ddc23b.jpg?v=1756346488"},{"product_id":"40bs57-78-sprocket","title":"40BS57 Sprocket With 7\/8\" Finished Bore","description":"\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003eThis 40BS57 sprocket features a 7\/8\" finished bore including a key-way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets, custom bore and made to order sprockets, and a full line of #40 roller chain. Fore more information, large quantities, or to get a custom sprocket please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/span\u003e\u003c\/i\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202016-08-01_20at_2011.10.39_20AM_e88c2366-0908-490b-a86d-550668d2f302.png?v=1737622013\" style=\"width: 162px;\" alt='40BS57 Sprocket With 7\/8\" Finished Bore'\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eSprocket Size: 40BS57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eOutside Diameter: 9.360\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Type: B\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eBore Size: 7\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eKeyway Size: 3\/16\" X 3\/32\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Diameter: 3-1\/2\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eLength Through Bore: 1-1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eWeight: 7.02 LBS\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eCommon Interchanges: 40BS57H, H40BS57, 40BS57-FB\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003eEmail: \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; font-size: 15px; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714564784495,"sku":"40BS57-78-SPROCKET","price":96.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40BS54-1-12-SPROCKET-2_f24f3bc5-dac8-442b-a777-8ce8befe1162.jpg?v=1756346492"},{"product_id":"40bs57-58-sprocket","title":"40BS57 Sprocket With 5\/8\" Finished Bore","description":"\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003eThis 40BS57 sprocket features a 5\/8\" finished bore including a key-way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets, custom bore and made to order sprockets, and a full line of #40 roller chain. Fore more information, large quantities, or to get a custom sprocket please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/span\u003e\u003c\/i\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202016-08-01_20at_2011.10.39_20AM_e88c2366-0908-490b-a86d-550668d2f302.png?v=1737622013\" style=\"width: 162px;\" alt='40BS57 Sprocket With 5\/8\" Finished Bore'\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eSprocket Size: 40BS57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eOutside Diameter: 9.360\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Type: B\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eBore Size: 5\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eKeyway Size: 3\/16\" X 3\/32\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Diameter: 3-1\/2\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eLength Through Bore: 1-1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eWeight: 7.02 LBS\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eCommon Interchanges: 40BS57H, H40BS57, 40BS57-FB\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003eEmail: \u003c\/inline\u003e\u003c\/span\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; font-size: 15px; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714564850031,"sku":"40BS57-58-SPROCKET","price":96.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40BS54-1-12-SPROCKET-2_1c3ca45f-0056-4b34-8b4d-290f9e0c8d30.jpg?v=1756346495"},{"product_id":"40bs57-34-sprocket","title":"40BS57 Sprocket With 3\/4\" Finished Bore","description":"\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003eThis 40BS57 sprocket features a 3\/4\" finished bore including a key-way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets, custom bore and made to order sprockets, and a full line of #40 roller chain. Fore more information, large quantities, or to get a custom sprocket please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/span\u003e\u003c\/i\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202016-08-01_20at_2011.10.39_20AM_e88c2366-0908-490b-a86d-550668d2f302.png?v=1737622013\" style=\"width: 162px;\" alt='40BS57 Sprocket With 3\/4\" Finished Bore'\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eSprocket Size: 40BS57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eOutside Diameter: 9.360\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Type: B\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eBore Size: 3\/4\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eKeyway Size: 3\/16\" X 3\/32\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Diameter: 3-1\/2\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eLength Through Bore: 1-1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eWeight: 7.02 LBS\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eCommon Interchanges: 40BS57H, H40BS57, 40BS57-FB\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003eEmail: \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; font-size: 15px; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714565177711,"sku":"40BS57-34-SPROCKET","price":96.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40BS54-1-12-SPROCKET-2_9672f99a-f955-4db4-bb41-f1f225007010.jpg?v=1756346508"},{"product_id":"40bs57-1-316-sprocket","title":"40BS57 Sprocket With 1-3\/16\" Finished Bore","description":"\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003eThis 40BS57 sprocket features a 1-3\/16\" finished bore including a key-way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets, custom bore and made to order sprockets, and a full line of #40 roller chain. Fore more information, large quantities, or to get a custom sprocket please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003eDimensions:\u003c\/span\u003e\u003c\/i\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202016-08-01_20at_2011.10.39_20AM_e88c2366-0908-490b-a86d-550668d2f302.png?v=1737622013\" style=\"width: 162px;\" alt='40BS57 Sprocket With 1-3\/16\" Finished Bore'\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eSprocket Size: 40BS57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eOutside Diameter: 9.360\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Type: B\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eBore Size: 1-3\/16\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eKeyway Size: 1\/4\" X 1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eHub Diameter: 3-1\/2\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eLength Through Bore: 1-1\/8\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eWeight: 7.02 LBS\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 16px;\"\u003eCommon Interchanges: 40BS57H, H40BS57, 40BS57-FB\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003eEmail: \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; font-size: 15px; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714565374319,"sku":"40BS57-1-316-SPROCKET","price":96.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/40BS54-1-12-SPROCKET-2_211ebe48-a84e-4e3d-9a2d-99b16ab9a4eb.jpg?v=1756346519"},{"product_id":"50a57-sprocket","title":"50A57 Sprocket","description":"\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003eThis 50A57 sprocket is a durable, high quality, and precision A-Plate sprocket that is manufactured out of high-quality steel. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the \u003c\/span\u003e\u003c\/b\u003e\u003ca href=\"http:\/\/www.usarollerchain.com\/50-Roller-Chain-Sprockets-s\/2610.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003e#50 roller chain\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also evenly coated with black oxide, which adds resistance to to the environment and will prevent early rust build up. 50A57 sprockets with a stock bore comes with a 15\/16\" inside diameter plain hole and can be easily machine bored to custom sizes. If you are in need of a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information or to get a custom quote please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003e\u003ch3\u003e50A57 Sprocket Dimensions\u003c\/h3\u003e\u003c\/span\u003e\u003c\/i\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/50_A_SPK_2dec56be-d635-4137-9350-88cf4cb33d98.png?v=1737622348\" style=\"width: 130px;\" alt=\"50A57 Sprocket\"\u003e\u003cbr\u003e\u003c\/b\u003e\n\u003cul style=\"letter-spacing: normal;\"\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77);\"\u003eSprocket Size: 50A57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77);\"\u003eTooth Count: 57\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77);\"\u003eSprocket Type: A\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77);\"\u003eOutside Diameter: 11.700\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77);\"\u003eStock Bore: 15\/16\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cspan style=\"color: rgb(192, 80, 77);\"\u003eSprocket Weight: 9.38 LBS\u003c\/span\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cb style=\"text-align: center; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif; font-size: 15px;\"\u003e\u003cspan\u003e\u003cinline style=\"color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr\u003eEmail: \u003c\/inline\u003e\u003c\/span\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"color: rgb(6, 39, 75); text-decoration: none; text-align: center; outline-style: none; font-family: Roboto, Helvetica, sans-serif; font-size: 15px; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cspan\u003e\u003cinline style=\"font-size: 18px;\"\u003e\u003cinline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan\u003e\u003cinline\u003e\u003cinline style=\"font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714615574895,"sku":"50A57-SPROCKET","price":93.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/50A54-SPROCKET-2_87238b7e-7ef3-4494-bb2a-6726ee08eed8.jpg?v=1756348953"},{"product_id":"50b57-sprocket","title":"50B57 Sprocket With Stock Bore","description":"\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003eThis 50B57 sprocket is a durable, premium quality, and precision 57-tooth sprocket that is manufactured out of high-quality steel. This sprocket is manufactured for optimum performance, durability, and to strict quality control standards. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"http:\/\/www.usarollerchain.com\/50-Roller-Chain-s\/2259.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003e#50 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e and sprocket, preventing premature wear or breakage. It is also black oxide coated which increases the sprockets overall resistance to the environment along with preventing early rust build up. 50B57 sprockets with a stock bore comes with the standard 1\" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes. We also offer sprockets with finished bore configurations right off the shelf from stock, and if you are needing a custom bore sprocket we the capabilities on providing those to within a fast lead-time and at really great prices. For more information, sprocket re-boring, MTO sprockets, or large quantities please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003cb\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003e\u003ci\u003e\u003ch3\u003e50B57 Sprocket Dimensions\u003c\/h3\u003e\u003c\/i\u003e\u003c\/inline\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/50_B_SB_94398407-b4a1-4baa-948f-ccbc4d5ab902.png?v=1737620812\" style=\"width: 216px;\" alt=\"50B57 Sprocket With Stock Bore\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\n\u003cul\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eSprocket Size: 50B57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eTooth Count: 57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eOutside Diameter: 11.700\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eHub Type: B\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eBore Size: 1\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eRecommended Maximum: 2-1\/2\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eHub Diameter: 3-3\/4\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eLength Thru Bore: 1-1\/4\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eSprocket Weight: 12.00 LBS\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eCommon Interchanges: 50B57H, H50B57, 50B57-SB\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"font-size: 15px; text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003e\nEmail: \u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); font-size: 15px; outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714620064111,"sku":"50B57-SPROCKET","price":130.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/50B54-SPROCKET-2_3b01eed6-6114-4693-875c-4da6a73eac79.jpg?v=1756349183"},{"product_id":"50bs57-1-12-sprocket","title":"50BS57 Sprocket With 1-1\/2\" Finished Bore","description":"\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003eThis 50BS57 sprocket features a 1-1\/2\" finished bore including a key-way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"http:\/\/www.usarollerchain.com\/50-Roller-Chain-s\/2259.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003e#50 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets, custom bore and made to order sprockets, and a full line of \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"http:\/\/www.usarollerchain.com\/50-Roller-Chain-s\/2259.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003eANSI #50 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e. Fore more information, large quantities, or to get a custom sprocket please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003cb\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003e\u003ci\u003e\u003ch3\u003e50BS57 1 1\/2\" Finished Bore Sprocket Dimensions\u003c\/h3\u003e\u003c\/i\u003e\u003c\/inline\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/50_B_FB_d677b857-49f4-425a-8393-d36bd550b4a4.png?v=1737622368\" style=\"width: 216px;\" alt='50BS57 Sprocket With 1-1\/2\" Finished Bore'\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\n\u003cul\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eSprocket Size: 50BS57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eTooth Count: 57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eOutside Diameter: 11.700\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eHub Type: B\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eBore Size: 1-1\/2\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eKeyway Size: 3\/8\" X 3\/16\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eHub Diameter: 3-3\/4\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eLength Thru Bore: 1-1\/4\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eSprocket Weight: 12.00 LBS\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eCommon Interchanges: 50BS57H, H50BS57, 50BS57-FB\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"font-size: 15px; text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003e\nEmail: \u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); font-size: 15px; outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714635530607,"sku":"50BS57-1-12-SPROCKET","price":152.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/50BS54-1-12-SPROCKET-2_930d4065-a996-4b96-816f-85ffc419d1a0.jpg?v=1756350013"},{"product_id":"50bs57-1-sprocket","title":"50BS57 Sprocket With 1\" Finished Bore","description":"\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003eThis 50BS57 sprocket features a 1\" finished bore including a key-way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"http:\/\/www.usarollerchain.com\/50-Roller-Chain-s\/2259.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003e#50 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets, custom bore and made to order sprockets, and a full line of \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"http:\/\/www.usarollerchain.com\/50-Roller-Chain-s\/2259.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003eANSI #50 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e. Fore more information, large quantities, or to get a custom sprocket please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003cb\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003e\u003ci\u003e\u003ch3\u003e50BS57 1\" Finished Bore Sprocket Dimensions\u003c\/h3\u003e\u003c\/i\u003e\u003c\/inline\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/50_B_FB_d677b857-49f4-425a-8393-d36bd550b4a4.png?v=1737622368\" style=\"width: 216px;\" alt='50BS57 Sprocket With 1\" Finished Bore'\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\n\u003cul\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eSprocket Size: 50BS57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eTooth Count: 57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eOutside Diameter: 11.700\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eHub Type: B\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eBore Size: 1\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eKeyway Size: 1\/4\" X 1\/8\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eHub Diameter: 3-3\/4\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eLength Thru Bore: 1-1\/4\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eSprocket Weight: 12.00 LBS\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eCommon Interchanges: 50BS57H, H50BS57, 50BS57-FB\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"font-size: 15px; text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003e\nEmail: \u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); font-size: 15px; outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714635596143,"sku":"50BS57-1-SPROCKET","price":152.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/50BS54-1-12-SPROCKET-2_de997eb2-7b01-4bed-bde5-2c4b7cacbdd5.jpg?v=1756350017"},{"product_id":"50bs57-1-1516-sprocket","title":"50BS57 Sprocket 1-15\/16\" Bore #50 Roller Chain ANSI","description":"\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003eThis 50BS57 sprocket features a 1-15\/16\" finished bore including a key-way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"http:\/\/www.usarollerchain.com\/50-Roller-Chain-s\/2259.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003e#50 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets, custom bore and made to order sprockets, and a full line of \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"http:\/\/www.usarollerchain.com\/50-Roller-Chain-s\/2259.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003eANSI #50 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e. Fore more information, large quantities, or to get a custom sprocket please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003cb\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003e\u003ci\u003e\u003ch3\u003e50BS57 1 15\/16\" Finished Bore Sprocket Dimensions\u003c\/h3\u003e\u003c\/i\u003e\u003c\/inline\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/50_B_FB_d677b857-49f4-425a-8393-d36bd550b4a4.png?v=1737622368\" style=\"width: 216px;\" alt='50BS57 Sprocket With 1-15\/16\" Finished Bore'\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\n\u003cul\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eSprocket Size: 50BS57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eTooth Count: 57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eOutside Diameter: 11.700\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eHub Type: B\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eBore Size: 1-15\/16\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eKeyway Size: 1\/2\" X 1\/4\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eHub Diameter: 3-3\/4\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eLength Thru Bore: 1-1\/4\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eSprocket Weight: 12.00 LBS\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eCommon Interchanges: 50BS57H, H50BS57, 50BS57-FB\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"font-size: 15px; text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003e\nEmail: \u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); font-size: 15px; outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714635891055,"sku":"50BS57-1-1516-SPROCKET","price":152.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/50BS54-1-12-SPROCKET-2_81274201-c949-403e-8640-4ef88ab1540b.jpg?v=1756350030"},{"product_id":"50bs57-1-18-sprocket","title":"50BS57 Sprocket With 1-1\/8\" Finished Bore","description":"\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003eThis 50BS57 sprocket features a 1-1\/8\" finished bore including a key-way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"http:\/\/www.usarollerchain.com\/50-Roller-Chain-s\/2259.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003e#50 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets, custom bore and made to order sprockets, and a full line of \u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"http:\/\/www.usarollerchain.com\/50-Roller-Chain-s\/2259.htm\" target=\"_blank\"\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(79, 129, 189); font-size: 16px;\"\u003eANSI #50 roller chain\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cb\u003e\u003cinline style=\"font-size: 16px;\"\u003e. Fore more information, large quantities, or to get a custom sprocket please contact us and we will be happy to assist you.\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003cb\u003e\u003cinline style=\"color: rgb(192, 80, 77); font-size: 18px;\"\u003e\u003ci\u003e\u003ch3\u003e50BS57 1 1\/8\" Finished Bore Sprocket Dimensions\u003c\/h3\u003e\u003c\/i\u003e\u003c\/inline\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/50_B_FB_d677b857-49f4-425a-8393-d36bd550b4a4.png?v=1737622368\" style=\"width: 216px;\" alt='50BS57 Sprocket With 1-1\/8\" Finished Bore'\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\n\u003cul\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eSprocket Size: 50BS57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eTooth Count: 57\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eOutside Diameter: 11.700\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eHub Type: B\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eBore Size: 1-1\/8\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eKeyway Size: 1\/4\" X 1\/8\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eHub Diameter: 3-3\/4\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eLength Thru Bore: 1-1\/4\"\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eSprocket Weight: 12.00 LBS\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003cb\u003e\u003ci\u003e\u003cinline style=\"color: rgb(0, 0, 0);\"\u003eCommon Interchanges: 50BS57H, H50BS57, 50BS57-FB\u003c\/inline\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cb\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb style=\"font-size: 15px; text-align: center; box-sizing: inherit; color: rgb(6, 39, 75); font-family: Roboto, Helvetica, sans-serif;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; color: rgb(227, 108, 9); font-size: 18px;\"\u003ePhone: (407) 347-3519\u003cbr style=\"box-sizing: inherit;\"\u003e\nEmail: \u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003ca href=\"mailto:sales@usarollerchain.com\" style=\"text-decoration: none; color: rgb(6, 39, 75); font-size: 15px; outline: none 0px; text-align: center; box-sizing: inherit; font-family: Roboto, Helvetica, sans-serif; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003cb style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit;\"\u003e\u003cinline style=\"box-sizing: inherit; font-size: 18px;\"\u003esales@usarollerchain.com\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/inline\u003e\u003c\/b\u003e\u003c\/a\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51714635858287,"sku":"50BS57-1-18-SPROCKET","price":152.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/50BS54-1-12-SPROCKET-2_41384880-cfdb-4c10-9819-0624177274ab.jpg?v=1756350032"}],"url":"https:\/\/usarollerchain.com\/collections\/57-tooth-chain-sprockets-s-6092.oembed?page=3","provider":"USA ROLLER CHAIN","version":"1.0","type":"link"}