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Plastic Flange Bearings
Plastic flange bearings are designed to replace cast and stainless steel flange bearings in applications that are extremely abrasive or are required to conform to USDA and FDA requirements. Our high-quality plastic flange bearings are manufactured from premium virgin UHMW and have a molecular weight of at least 4.2 million for extended wear life and performance. We stock both the 2-bolt flange mounted plastic bearings and the four-bolt bearings. Standard bore sizes range from 1/2" up to 3" inside diameter, these bearings are manufactured to standard bearing dimensions (bolt holes, hole spacing, base height, etc.) so they can directly interchange with common brands, eliminating the need for equipment adjustments and modifications. Flange mounted bearings have excellent holding power and are commonly found in horizontal applications. The standard operating temperature for these bearings is 200°F, however, for high-temp applications, we also produce these bearings in an acetal material capable of operating up to 600°F. Additionally, UHMW plastic flange bearings are self-lubricating due to the properties of the plastic material. For figuring information for new applications refer to our plastic bearing insert page and scroll down to the required data. To get pricing and availability or for additional information contact our customer support team and we will be happy to assist you!
Plastic 2-Bolt Flange Bearing Sizes
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Bearing Part #
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Bore Sizes
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Bolt Size
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Dimension (A)
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Dimension (B)
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Dimension (C)
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Dimension (D)
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Max Speed (RPM)
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Max Radial Load (LBS)
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|---|---|---|---|---|---|---|---|---|
| FB-12 | 1/2" | 3/8" | 3-7/8" | 3" | 1" | 2" | 350 | 200 |
| FB-916 | 9/16" | 3/8" | 3-7/8" | 3" | 1" | 2" | 300 | 216 |
| FB-58 | 5/8" | 3/8" | 3-7/8" | 3" | 1" | 2" | 275 | 233 |
| FB-1116 | 11/16" | 3/8" | 3-7/8" | 3" | 1" | 2" | 250 | 266 |
| FB-34 | 3/4" | 3/8" | 4-13/32" | 3-17/32" | 1" | 2-1/2" | 225 | 333 |
| FB-1316 | 13/16" | 7/16" | 4-7/8" | 3-57/64" | 1-1/4" | 2-3/4" | 200 | 366 |
| FB-78 | 7/8" | 7/16" | 4-7/8" | 3-57/64" | 1-1/4" | 2-3/4" | 200 | 400 |
| FB-1516 | 15/16" | 7/16" | 4-7/8" | 3-57/64" | 1-1/4" | 2-3/4" | 175 | 433 |
| FB-1 | 1" | 7/16" | 4-7/8" | 3-57/64" | 1-1/4" | 2-3/4" | 175 | 466 |
| FB-1-116 | 1-1/16" | 7/16" | 5-9/16" | 4-19/32" | 1-1/2" | 3-1/8" | 150 | 600 |
| FB-1-18 | 1-1/8" | 7/16" | 5-9/16" | 4-19/32" | 1-1/2" | 3-1/8" | 150 | 633 |
| FB-1-316 | 1-3/16" | 7/16" | 5-9/16" | 4-19/32" | 1-1/2" | 3-1/8" | 150 | 665 |
| FB-1-14 | 1-1/4" | 1/2" | 6-1/8" | 5-1/8" | 1-1/2" | 3-1/2" | 125 | 733 |
| FB-1-516 | 1-5/16" | 1/2" | 6-1/8" | 5-1/8" | 1-1/2" | 3-1/2" | 125 | 766 |
| FB-1-38 | 1-3/8" | 1/2" | 6-1/8" | 5-1/8" | 1-1/2" | 3-1/2" | 125 | 800 |
| FB-1-716 | 1-7/16" | 1/2" | 6-1/8" | 5-1/8" | 1-1/2" | 3-1/2" | 125 | 833 |
| FB-1-12 | 1-1/2" | 1/2" | 6-3/4" | 5-21/32" | 1-3/4" | 4" | 100 | 1033 |
| FB-1-916 | 1-9/16" | 1/2" | 6-3/4" | 5-21/32" | 1-3/4" | 4" | 100 | 1066 |
| FB-1-58 | 1-5/8" | 1/2" | 7" | 5-27/32" | 1-3/4" | 4-3/8" | 100 | 1100 |
| FB-1-1116 | 1-11/16" | 1/2" | 7" | 5-27/32" | 1-3/4" | 4-3/8" | 100 | 1166 |
| FB-1-34 | 1-3/4" | 1/2" | 7" | 5-27/32" | 1-3/4" | 4-3/8" | 75 | 1200 |
| FB-1-78 | 1-7/8" | 5/8" | 7-7/16" | 6-3/16" | 1-3/4" | 4-1/2" | 75 | 1266 |
| FB-1-1516 | 1-15/16" | 5/8" | 7-7/16" | 6-3/16" | 1-3/4" | 4-1/2" | 75 | 1333 |
| FB-2 | 2" | 5/8" | 8-1/2" | 7-1/4" | 2" | 5" | 75 | 1566 |
| FB-2-18 | 2-1/8" | 5/8" | 8-1/2" | 7-1/4" | 2" | 5" | 75 | 1665 |
| FB-2-316 | 2-3/16" | 5/8" | 8-1/2" | 7-1/4" | 2" | 5" | 75 | 1700 |
| FB-2-14 | 2-1/4" | 5/8" | 9-1/4" | 7-15/16" | 2" | 5-1/2" | 75 | 1900 |
| FB-2-38 | 2-3/8" | 5/8" | 9-1/4" | 7-15/16" | 2" | 5-1/2" | 50 | 2000 |
| FB-2-716 | 2-7/16" | 5/8" | 9-1/4" | 7-15/16" | 2" | 5-1/2" | 50 | 2066 |
Plastic 4-Bolt Flange Bearing Sizes
| Bearing Part # | Bore Sizes | Bolt Size | Dimension (A) | Dimension (B) | Dimension (C) | Max Speed (RPM) | Max Radial Load (LBS) |
|---|---|---|---|---|---|---|---|
| 4FB-12 | 1/2" | 3/8" | 3" | 2-1/8" | 1" | 380 | 400 |
| 4FB-916 | 9/16" | 3/8" | 3" | 2-1/8" | 1" | 330 | 450 |
| 4FB-58 | 5/8" | 3/8" | 3" | 2-1/8" | 1" | 300 | 500 |
| 4FB-1116 | 11/16" | 3/8" | 3" | 2-1/8" | 1" | 275 | 550 |
| 4FB-34 | 3/4" | 3/8" | 3-3/8" | 2-1/2" | 1" | 250 | 750 |
| 4FB-1316 | 13/16" | 7/16" | 3-3/4" | 2-3/4" | 1-1/4" | 230 | 800 |
| 4FB-78 | 7/8" | 7/16" | 3-3/4" | 2-3/4" | 1-1/4" | 210 | 865 |
| 4FB-1516 | 15/16" | 7/16" | 3-3/4" | 2-3/4" | 1-1/4" | 200 | 933 |
| 4FB-1 | 1" | 7/16" | 3-3/4" | 2-3/4" | 1-1/4" | 190 | 1000 |
| 4FB-1-116 | 1-1/16" | 7/16" | 4-1/4" | 3-1/4" | 1-1/2" | 175 | 1266 |
| 4FB-1-18 | 1-1/8" | 7/16" | 4-1/4" | 3-1/4" | 1-1/2" | 160 | 1350 |
| 4FB-1-316 | 1-3/16" | 7/16" | 4-1/4" | 3-1/4" | 1-1/2" | 160 | 1416 |
| 4FB-1-14 | 1-1/4" | 1/2" | 4-3/4" | 3-5/8" | 1-1/2" | 150 | 1450 |
| 4FB-1-516 | 1-5/16" | 1/2" | 4-3/4" | 3-5/8" | 1-1/2" | 140 | 1565 |
| 4FB-1-38 | 1-3/8" | 1/2" | 4-3/4" | 3-5/8" | 1-1/2" | 130 | 1650 |
| 4FB-1-716 | 1-7/16" | 1/2" | 4-3/4" | 3-5/8" | 1-1/2" | 130 | 1700 |
| 4FB-1-12 | 1-1/2" | 1/2" | 5-1/8" | 4" | 1-3/4" | 125 | 2100 |
| 4FB-1-916 | 1-9/16" | 1/2" | 5-1/8" | 4" | 1-3/4" | 120 | 2183 |
| 4FB-1-58 | 1-5/8" | 1/2" | 5-1/4" | 4-1/8" | 1-3/4" | 115 | 2266 |
| 4FB-1-1116 | 1-11/16" | 1/2" | 5-1/4" | 4-1/8" | 1-3/4" | 110 | 2350 |
| 4FB-1-34 | 1-3/4" | 1/2" | 5-1/4" | 4-1/8" | 1-3/4" | 105 | 2450 |
| 4FB-1-78 | 1-7/8" | 1/2" | 5-1/2" | 4-3/8" | 1-3/4" | 100 | 2616 |
| 4FB-1-1516 | 1-15/16" | 1/2" | 5-1/2" | 4-3/8" | 1-3/4" | 95 | 2700 |
| 4FB-2 | 2" | 5/8" | 6-3/8" | 5-1/8" | 1-3/4" | 95 | 2800 |
| 4FB-2-18 | 2-1/8" | 5/8" | 6-3/8" | 5-1/8" | 1-3/4" | 85 | 2966 |
| 4FB-2-316 | 2-3/16" | 5/8" | 6-3/8" | 5-1/8" | 1-3/4" | 85 | 3050 |
| 4FB-2-14 | 2-1/4" | 5/8" | 6-7/8" | 5-5/8" | 2" | 80 | 3600 |
| 4FB-2-38 | 2-3/8" | 5/8" | 6-7/8" | 5-5/8" | 2" | 75 | 3900 |
| 4FB-2-716 | 2-7/16" | 5/8" | 6-7/8" | 5-5/8" | 2" | 60 | 5860 |
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.