{"product_id":"d12b45-sprocket","title":"D12B45 Sprocket With Stock Bore","description":"This D12B45 sprocket with a stock bore is a metric roller chain sprocket manufactured under ISO and British Standard 228. Our D12B45 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 D12B45 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 45 tooth sprocket, we also stock a high-quality \u003ca href=\"https:\/\/www.usarollerchain.com\/12B-2-Roller-Chain-p\/eco-12b-2-roller-chain.htm\" target=\"_blank\"\u003e12B-2 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 D12B45 sprockets, please contact us and one of our sales team members will be happy to assist you. \u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003eD12B45 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\/DBL_TYP_B_C_12Bg_090d30cf-627b-4021-a555-60ebfe13e56e.png?v=1737625386\" style=\"width: 135px;\" alt=\"D12B45 Sprocket With Stock Bore\"\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: D12B45\u003c\/li\u003e\n\u003cli\u003eTooth Count: 45\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 273.09mm\u003c\/li\u003e\n\u003cli\u003eStock Bore: 25mm\u003c\/li\u003e\n\u003cli\u003eMaximum Recommended Bore: 85mm\u003c\/li\u003e\n\u003cli\u003eHub Diameter (H): 130mm\u003c\/li\u003e\n\u003cli\u003eLength Thru Bore (L): 50mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 15.38 kg  \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51715033629039,"sku":"D12B45-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/D10B14-SPROCKET-2_4e7a4add-8b82-4daa-8896-8e06f1a37936.jpg?v=1780430890","url":"https:\/\/usarollerchain.com\/products\/d12b45-sprocket","provider":"USA ROLLER CHAIN","version":"1.0","type":"link"}