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Thickness Thickness |
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Washer Type Washer Type |
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 | Flat |
Color Color | Show |
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 | Green |
Hardness Hardness |
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Maximum Temperature Maximum Temperature |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Outer Circumference Outer Circumference |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Minimum Temperature Minimum Temperature |
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Reinforcement Material Reinforcement Material |
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About Sizing Belts
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About Washers
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Abrasion-Resistant Rubber and Plastic Sealing Washers
Made of durable material, these washers resist wear from rubbing and scraping surfaces. They create a light duty seal around fasteners to prevent fluids from leaking and damp vibration.
Aramid fabric/Buna-N rubber washers have good oil resistance.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Thick. | Min. | Max. | Hardness | Color | Pkg. Qty. | Pkg. | |
Aramid Fabric/Buna-N Rubber | ||||||||||
| 1/4" | 0.250" | 0.500" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 10 | 000000000 | 00000 |
| 1/4" | 0.250" | 0.625" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 10 | 000000000 | 0000 |
| 5/16" | 0.312" | 0.625" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 10 | 000000000 | 0000 |
| 5/16" | 0.312" | 0.750" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 10 | 000000000 | 00000 |
| 3/8" | 0.375" | 0.625" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 10 | 000000000 | 0000 |
| 3/8" | 0.375" | 0.750" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 10 | 000000000 | 00000 |
| 1/2" | 0.500" | 0.875" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 5 | 000000000 | 0000 |
| 1/2" | 0.500" | 1.000" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 5 | 000000000 | 0000 |
| 5/8" | 0.625" | 1.000" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 5 | 000000000 | 0000 |
| 5/8" | 0.625" | 1.500" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 5 | 000000000 | 0000 |
| 3/4" | 0.750" | 1.500" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 5 | 000000000 | 0000 |
| 3/4" | 0.750" | 2.000" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 5 | 000000000 | 0000 |
| 1" | 1.000" | 1.500" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 5 | 000000000 | 0000 |
| 1" | 1.000" | 2.000" | 0.054"-0.070" | -20° | 460° | Durometer 70A | Green | 5 | 000000000 | 0000 |
Textured Round Belts
Outer Circumference
Often used with lathes and conveyors, these textured belts grip better than standard round belts, making sure heavy loads don’t slip. The solid core makes these belts strong and durable, and they stretch less than hollow core belts. Made from polyurethane, they hold up to chemicals and abrasion. Also known as O-ring and endless belts, they come ready to use.
| Outer Circumference, mm | Material | Color | Each | |
2 mm Dia. | ||||
|---|---|---|---|---|
| 203 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 229 | Polyurethane Rubber | Green | 00000000 | 0000 |
| 254 | Polyurethane Rubber | Green | 00000000 | 0000 |
| 279 | Polyurethane Rubber | Green | 00000000 | 0000 |
| 305 | Polyurethane Rubber | Green | 00000000 | 0000 |
| 406 | Polyurethane Rubber | Green | 00000000 | 0000 |
4 mm Dia. | ||||
| 203 | Polyurethane Rubber | Green | 00000000 | 0000 |
| 229 | Polyurethane Rubber | Green | 00000000 | 0000 |
| 254 | Polyurethane Rubber | Green | 00000000 | 0000 |
| 279 | Polyurethane Rubber | Green | 00000000 | 0000 |
| 305 | Polyurethane Rubber | Green | 00000000 | 0000 |
| 356 | Polyurethane Rubber | Green | 00000000 | 0000 |
| 381 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 457 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 483 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 508 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 559 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 610 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 635 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 660 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 711 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 813 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 1,372 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 1,422 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 1,524 | Polyurethane Rubber | Green | 00000000 | 00000 |
6 mm Dia. | ||||
| 203 | Polyurethane Rubber | Green | 00000000 | 0000 |
| 229 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 254 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 279 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 305 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 457 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 483 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 508 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 533 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 559 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 635 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 660 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 711 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 762 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 813 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 864 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 914 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 965 | Polyurethane Rubber | Green | 00000000 | 00000 |
8 mm Dia. | ||||
| 305 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 762 | Polyurethane Rubber | Green | 00000000 | 00000 |
10 mm Dia. | ||||
| 559 | Polyurethane Rubber | Green | 00000000 | 00000 |
| 711 | Polyurethane Rubber | Green | 00000000 | 00000 |
Chemical-Resistant Made-to-Order Round Belts
Outer Circumference
In addition to chemical resistance, these belts also provide increased abrasion resistance over heavy duty round belts. Also known as O-ring and endless belts, they come ready to use.
To Order: Please specify outer circumference in 1/4" increments.
| Dia. | Outer Circumference | For Min. Pulley Dia. | Material | Color | Per Inch | |
| 2mm | 8"-1,200" | 18mm | Polyurethane Rubber | Green | 0000000 | 00000 |
| 4mm | 8"-1,200" | 36mm | Polyurethane Rubber | Green | 0000000 | 000 |
| 6mm | 8"-1,200" | 54mm | Polyurethane Rubber | Green | 0000000 | 0000 |
| 8mm | 8"-1,200" | 71mm | Polyurethane Rubber | Green | 0000000 | 0000 |
| 10mm | 8"-1,200" | 89mm | Polyurethane Rubber | Green | 0000000 | 0000 |
Heavy Duty Made-to-Order Round Belts
Outer Circumference
These belts are reinforced with a polyester cord for strength. Also known as O-ring and endless belts, they come ready to use.
To Order: Please specify outer circumference in 1/4" increments.
| Dia. | Outer Circumference | For Min. Pulley Dia. | Material | Reinforcement Material | Color | Per Inch | |
| 1/8" | 13"-1,200" | 2 1/16" | Polyurethane Rubber | Polyester Plastic | Green | 000000 | 00000 |
| 3/16" | 13"-1,200" | 2 1/16" | Polyurethane Rubber | Polyester Plastic | Green | 000000 | 0000 |
| 1/4" | 13"-1,200" | 2 3/4" | Polyurethane Rubber | Polyester Plastic | Green | 000000 | 0000 |
| 5/16" | 13"-1,200" | 3 7/16" | Polyurethane Rubber | Polyester Plastic | Green | 000000 | 0000 |