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21-Tooth Sprocket
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21-Tooth Sprocket

USA Roller Chain and Sprockets is one of the nations leading suppliers of industrial chain sprockets. Our 21-tooth sprockets conform to international ISO, DIN, or American ANSI standards. We stock 21-tooth chain sprockets for a wide range of applications including; forestry, conveying, drive-sprockets, idle-sprockets, agricultural, engineer-class, and more. Not only do we supply sprockets but we also provide chain, v-belt pulleys, V-belts, electric motors, shafting, gear reducers, bearings, and a wide range of other PT components. For hard to find, custom, or OEM solutions, we make custom 21-tooth sprockets from our in-house machine shop. If you don't see the twenty-one-tooth sprocket you need or need help identifying your sprocket contact our customer support team. For additional information or to get a quote on 21-tooth sprockets, please contact us and we'll be happy to assist you.

21-Tooth Chain Sprocket Types
Roller Chain Sprocket
Split Sprockets
Engineer-Class Sprockets
Idler Sprockets
Roller Chain Sprocket Engineer-Class Sprockets Idler Sprockets
Additionally, we have plastic sprockets, stainless steel sprockets, and aluminum sprockets!

Note: We do not supply sprockets for BMX, bikes of any sort, automobiles, ATVs, UTVs, or any other motor-sport products. Our sprockets are made for industrial and agricultural duty applications only.

Frequently Asked Questions

  • If your order is less than $300, no problem! Please give us a call at 407-347-3519 or email Sales@usarollerchain.com, and we will be happy to assist you!

  • USA Roller Chain utilizes an extensive network of vendors and warehouses to ensure you get your items quickly! Our primary roller chain warehouse is located in Clermont, FL, but we have warehouses located all across the United States. Your order will be shipped from the closest warehouse to you that has your requested product in stock. This speeds up transit times and saves you money on shipping! If you have any questions about where an item will ship from, please CONTACT US

  • In-stock items are typically shipped out in 1-3 business days.Made-to-order item lead times vary from 1-2 days up to 14-20+ weeks, depending on the product. If you need your items urgently, please let us know, and we will do our best to meet your required delivery date! If you have any questions, please CONTACT US

  • If you are having an issue with your order, please CONTACT US as soon as possible so we can resolve it for you.

    Most in-stock items can be returned within 30 days of the shipment date. MTO or Custom orders are not eligible for a return or refund. For a detailed explanation of our return policies, please click here.

  • Absolutely! We may be called "USA Roller Chain", but we ship worldwide! Please CONTACT US for Export/International quotes or orders.