{"product_id":"roller-chain-sprocket-18-tooth-b-type-25mm-bore-th","title":"Roller Chain Sprocket 18 Tooth B Type 25mm Bore Three Eighths Inch Pitch A3 Steel Hardened Teeth Built Tough For Single Strand Chain With 8mm Keyway And Two Set Screws","description":"\u003cdiv\u003eHeavy-Duty 18-Tooth Sprocket for 3\/8in Pitch Drive\u003cbr\u003e\n✔️ 18T, 25mm bore, 3\/8in pitch, A3 steel, 8mm keyway, 2 screws \u003cp\u003eThis rugged B-type sprocket is designed for single-strand roller chains in machine power trains, commonly used on milling machines and drill presses. It provides solid torque transfer and reliable operation in demanding workshop setups.\u003c\/p\u003e \u003ctable\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\u003c\/td\u003e\n\u003ctd\u003e25 mm (0.984 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTeeth\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePitch\u003c\/td\u003e\n\u003ctd\u003e3\/8 in (9.525 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKeyway\u003c\/td\u003e\n\u003ctd\u003e8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrews\u003c\/td\u003e\n\u003ctd\u003e2 at 90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eA3 steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTooth hardness\u003c\/td\u003e\n\u003ctd\u003eHigh-frequency quenched\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003cp\u003e✅ 18 teeth, B-type sprocket for 3\/8 inch pitch\n✅ 25 mm bore with 8 mm keyway and two set screws at 90°\n✅ Made from A3 steel with teeth hardened by high-frequency quenching\n✅ Hub accepts bushings on the opposite side to boost energy transfer\n✅ Fixed mounting on shaft via keyway and two set screws for security\u003c\/p\u003e \u003cp\u003e💡 What is a chain sprocket used for in power transmission? This handy guide explains its role in mechanical drives.\n- Handy explanation: transfers torque from shaft to chain to drive machinery\n- Ideal for milling machines and drill presses needing reliable motion\n- Works with 3\/8 in pitch roller chains and 25 mm bore sprockets\n- Maintenance tips: keep chain tension correct and mount securely with 8 mm keyway and two set screws\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48233370976491,"sku":"VXB0CTMSR55P","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61rSpvXEYTL.jpg?v=1778319331","url":"https:\/\/vxb.com\/products\/roller-chain-sprocket-18-tooth-b-type-25mm-bore-th","provider":"VXB Bearings","version":"1.0","type":"link"}