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Operated in the USA
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Unmatched Quality
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Fast Shipping
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Expert Support
120-3 Triple Sprockets
Our Triple 120-3 Roller Chain Sprockets are manufactured in accordance with ANSI B29 standards and boast high-precision tolerances for dependable and consistent performance with the 1.5" pitch chain. We also stock 120-3 roller chain and a wide range of other components such as v-belt pulleys, electric motors, gear reducers, bearings, and more! The below chart shows standard 120-3 chain sprockets but we also supply custom roller chain sprockets and specific bore sprockets. For more information or to get a quote please contact us and we will be happy to assist you!120-3 Triple Sprocket Size Charts
120-3 B-Hub Sprockets
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Tooth Count
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Outside Diameter
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Stock Bore
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Max. Recommended Bore
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Hub Diameter
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Length Thru Bore
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Weight (LBS)
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| E120B11H | 11 | 6.01 | 1-1/2 |
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| E120B12H | 12 | 6.50 | - |
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| E120B13H | 13 | 6.99 | - |
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| E120B14H | 14 | 7.47 | - |
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| E120B15H | 15 | 7.96 | - |
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| E120B16H | 16 | 8.44 | - |
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| E120B17H | 17 | 8.92 | - |
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| E120B18H | 18 | 9.41 | - |
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| E120B19H | 19 | 9.89 | - |
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| E120B20H | 20 | 10.37 | - |
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| E120B21H | 21 | 10.85 | - | ||||
| E120B23H | 23 | 11.81 | - |
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| E120B24H | 24 | 12.29 | - |
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| E120B25H | 25 | 12.77 | - |
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| E120B26H | 26 | 13.25 | - |
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| E120B28H | 28 | 14.21 | - |
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| E120B30H | 30 | 15.17 | - |
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| E120B32H | 32 | 16.13 | - |
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| E120B35H | 35 | 17.57 | 2 |
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| E120B36H | 36 | 18.05 | - |
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| E120B40H | 40 | 19.96 | - |
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120-3 C-Hub Sprockets
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Tooth Count | Outside Diameter | Stock Bore | Max. Recommended Bore | Hub Diameter | Length Thru Bore | Weight (LBS) |
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| E120C45 | 45 | 22.35 | - |
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| E120C54 | 54 | 26.65 | - |
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| E120C60 | 60 | 29.52 | - |
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Frequently Asked Questions
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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!
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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
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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
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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.
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Absolutely! We may be called "USA Roller Chain", but we ship worldwide! Please CONTACT US for Export/International quotes or orders.