{"product_id":"12-tooth-chain-roller-sprocket-b-type-with-three-q","title":"12 Tooth Chain Roller Sprocket B Type With Three Quarters Inch Bore Keyway And Set Screws Carbon Steel Black Oxide Finish For Single Strand Chain Drives 40mm Outer Diameter 20mm Thick","description":"\u003cdiv\u003e12-Tooth Chain Sprocket with 3\/4 Bore, Black Oxide, 1 pc\u003cbr\u003e\n✔️ 12-tooth sprocket, 3\/4 in bore, 40mm OD, 20mm thick, 1 pc \u003cp\u003eSingle-chain roller sprocket designed for fixed-position mounting on a shaft in single-strand chain drives. It features a 3\/4 inch bore with a keyway and two set screws at 90 degrees for secure alignment. Commonly used on milling machines, drilling machines, and other machinery transmissions to drive a roller chain smoothly and reliably.\u003c\/p\u003e \u003cp\u003e✅ Bore size: 3\/4 in (19.05 mm)\u003cbr\u003e✅ Outer diameter: 40 mm (1.57 in)\u003cbr\u003e✅ Step outer diameter: 30 mm (1.18 in)\u003cbr\u003e✅ Teeth: 12\u003cbr\u003e✅ Thickness: 20 mm (0.79 in)\u003cbr\u003e✅ Material: carbon steel with heat-treated teeth and black oxide finish\u003cbr\u003e✅ Finish: rust-resistant black oxide\u003cbr\u003e✅ Mounting: fixed on shaft with set screws at 90 degrees\u003cbr\u003e\u003c\/p\u003e \u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 520px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDimension\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBore size\u003c\/td\u003e\n\u003ctd\u003e3\/4 in (19.05 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter diameter\u003c\/td\u003e\n\u003ctd\u003e40 mm (1.57 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep outer diameter\u003c\/td\u003e\n\u003ctd\u003e30 mm (1.18 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e20 mm (0.79 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTeeth\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003cp\u003e💡 What is a long-tail question about chain sprockets used for in machine drives? Here's a handy, concise answer:\n- Transfers rotation from drive shaft to a roller chain in single-strand drives\n- Fixed on shaft with a keyway and 2 set screws at 90°\n- Carbon steel teeth are heat-treated for wear resistance and are black oxide coated\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48233344663787,"sku":"VXB0DJ7C7C2S","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61FJeDAK94L.jpg?v=1778318939","url":"https:\/\/vxb.com\/products\/12-tooth-chain-roller-sprocket-b-type-with-three-q","provider":"VXB Bearings","version":"1.0","type":"link"}