{"product_id":"ds20a21-sprocket","title":"DS20A21 Sprocket","description":"DS20A21 Sprocket is a double single 21-tooth metric roller chain sprocket made for \u003ca href=\"https:\/\/www.usarollerchain.com\/20B-Metric-Roller-Chain-p\/eco-20b-roller-chain.htm\" target=\"_blank\"\u003e20B-1 roller chain\u003c\/a\u003e. Double single DS20A21 sprockets are made to run two single-strands of roller chain parallel to each other. Specifically, this sprocket is manufactured in accordance with ISO, DIN, and British Standards so it directly interchanges with previous sprockets in the application along with other manufacture brands. Utilizing premium grade alloy steel and precision machining our DS20A21 sprocket exceeds in performance, durability, and working life. Unlike other places, we also offer upgrades to our sprockets (See below)\u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003eDS20A21 Sprocket Upgrade Options\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eHeat-Treated Teeth\u003c\/li\u003e\n \u003cli\u003eCustom Bore Sizes (With Key-way \u0026amp; Set-Screws)\u003c\/li\u003e\n \u003cli\u003e\n\u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/idler-sprockets-s-3393\" target=\"_blank\"\u003eIdler Sprocket\u003c\/a\u003e Configuration\u003c\/li\u003e\n \u003cli\u003eBlack Oxide Coating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDS20A21 Sprocket Dimensions\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/Screen_20Shot_202019-05-28_20at_2011.08.27_20AM_5c3f0cd0-a064-4b58-8d50-ebd77fb127a2.png?v=1737386341\" style=\"width: 100px;\" alt=\"DS20A21 Sprocket\"\u003e\u003cbr\u003e\u003cul style=\"letter-spacing: normal;\"\u003e\n\u003cli\u003eSprocket Size: DS20A21\u003c\/li\u003e\n\u003cli\u003eTooth Count: 21\u003c\/li\u003e\n\u003cli\u003eOutside Diameter: 229.62mm\u003c\/li\u003e\n\u003cli\u003ePitch Diameter: 213.03mm\u003c\/li\u003e\n\u003cli\u003eSprocket Type: A\u003c\/li\u003e\n\u003cli\u003eStock Bore: 32mm\u003c\/li\u003e\n\u003cli\u003eMaximum Recommended Bore: 133.35mm\u003c\/li\u003e\n\u003cli\u003eDimension (L): 68.3mm\u003c\/li\u003e\n\u003cli\u003eDimension (C): 49.8mm\u003c\/li\u003e\n\u003cli\u003eDimension (E): 177.0mm\u003c\/li\u003e\n\u003cli\u003eDimension (F): 18.5mm\u003c\/li\u003e\n\u003cli\u003eSprocket Weight: 13.18 kG\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003eBesides the metric double single sprocket, we also supply \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\/electric-motors-s-5767\" target=\"_blank\"\u003eelectric motors\u003c\/a\u003e, \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Gear-Reducers-For-Electric-Motors-s-4939\" target=\"_blank\"\u003egear reducers\u003c\/a\u003e, and a plethora of \u003ca href=\"https:\/\/www.usarollerchain.com\/collections\/Roller-Chain-Accessories-s-4958\" target=\"_blank\"\u003eroller chain accessories\u003c\/a\u003e. For more information or to get a quote please contact us and we will be happy to assist you. \u003cbr\u003e\u003cbr\u003e","brand":"USA ROLLER CHAIN","offers":[{"title":"Default Title","offer_id":51715090547055,"sku":"DS20A21-SPROCKET","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0187\/7925\/files\/32A20-SPROCKET-2_3f59e8c6-59cc-44ab-b757-813dce350a30.jpg?v=1780430912","url":"https:\/\/usarollerchain.com\/products\/ds20a21-sprocket","provider":"USA ROLLER CHAIN","version":"1.0","type":"link"}