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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
2BK-Series Pulleys For V-Belts
2BK pulleys can be used with 2-banded A belts, 2-banded B-belts, 2-banded cogged AX belts, 2-banded cogged BX belts, single A, B, 4L, 5L, AX, BX, AA, and BB belts. 2BK pulleys are commonly known as double groove BK pulleys and range in diameter from 2.50" to 18.75" but custom ones are also available upon request. Double BK series pulleys are typically used in medium to heavy-duty agricultural and industrial applications. Our double v-belt pulleys are manufactured using state of the art techniques combined with having premium high-performance and high-strength features like using grade 35 cast iron instead of grade 25.2BK Series Pulley Size Chart
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Outside Diameter
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Pitch Diameter (4L/A)
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Pitch Diameter (5L/B)
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Type
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Dimension (F)
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Dimension (L)
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Dimension (P)
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Dimension (C)
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Pulley Weight
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| 2.50" | 1.90" | 2.30" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 1.3 LBS | |
| 2.70" | 2.10" | 2.50" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 1.6 LBS | |
| 2.95" | 2.20" | 2.60" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 1.9 LBS | |
| 3.15" | 2.40" | 2.80" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 2.3 LBS | |
| 3.35" | 2.60" | 3.00" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 2.6 LBS | |
| 3.55" | 2.80" | 3.20" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 2.8 LBS | |
| 3.75" | 3.00" | 3.40" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 3.3 LBS | |
| 3.95" | 3.20" | 3.60" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 3.3 LBS | |
| 4.25" | 3.50" | 3.90" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 3.3 LBS | |
| 4.45" | 3.70" | 4.10" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 3.7 LBS | |
| 4.75" | 4.00" | 4.40" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 4.1 LBS | |
| 4.95" | 4.20" | 4.60" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 4.5 LBS | |
| 5.25" | 4.50" | 4.90" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 4.5 LBS | |
| 5.45" | 4.70" | 5.10" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 5.1 LBS | |
| 5.75" | 5.00" | 5.40" | 3 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 4.9 LBS | |
| 5.95" | 5.20" | 5.60" | 3 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 4.8 LBS | |
| 6.25" | 5.50" | 5.90" | 3 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 5.0 LBS | |
| 6.45" | 5.70" | 6.10" | 3 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 5.0 LBS | |
| 6.75" | 6.00" | 6.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 6.6 LBS | |
| 7.75" | 7.00" | 7.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 7.2 LBS | |
| 8.75" | 8.00" | 8.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 8.4 LBS | |
| 9.75" | 9.00" | 9.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 9.4 LBS | |
| 10.75" | 10.00" | 10.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 10.4 LBS | |
| 11.75" | 11.00" | 11.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 11.8 LBS | |
| 12.75" | 12.00" | 12.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 14.9 LBS | |
| 13.75" | 13.00" | 13.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 16.3 LBS | |
| 15.75" | 15.00" | 15.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 18.0 LBS | |
| 18.75" | 18.00" | 18.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 23.3 LBS |
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.