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System of Measurement System of Measurement |
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For Belt Type For Belt Type | Show |
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Diameter Diameter |
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Material Material | Show |
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For Shaft Type For Shaft Type |
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 | Round |
Bore Type Bore Type |
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| Finished | Machinable |
Number of Grooves Number of Grooves |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Bearing Type Bearing Type |
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 | Ball |
Bearing Material Bearing Material |
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Bearing Seal Type Bearing Seal Type |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Round-Belt Pulleys
Mount these pulleys directly onto a shaft to transmit rotary motion and torque. Commonly used in harsh environments and wet conditions, they are corrosion and abrasion resistant. The bore can be machined to your exact specifications.
For technical drawings and 3-D models, click on a part number.
| For Belt Dia. | OD | For Shaft Dia. | Dia. | Wd. | Groove Dp. | For Max. Shaft Dia. | Material | Each | |
| 1/8" | 1.5" | 1/4" | 1.375" | 3/8" | 0.062" | 1/2" | UHMW Plastic | 0000000 | 000000 |
| 1/4" | 1.5" | 1/4" | 1.22" | 1/2" | 0.14" | 1/2" | UHMW Plastic | 0000000 | 00000 |
| 1/4" | 2" | 1/4" | 1.72" | 1/2" | 0.14" | 1/2" | UHMW Plastic | 0000000 | 00000 |
| 1/4" | 2.5" | 1/4" | 2.22" | 1/2" | 0.14" | 3/4" | UHMW Plastic | 0000000 | 00000 |
| 1/4" | 3" | 1/2" | 2.72" | 1/2" | 0.14" | 3/4" | UHMW Plastic | 0000000 | 00000 |
| 1/4" | 4" | 1/2" | 3.72" | 1/2" | 0.14" | 1" | UHMW Plastic | 0000000 | 00000 |
| 3/8" | 2" | 1/4" | 1.59" | 5/8" | 0.205" | 1/2" | UHMW Plastic | 0000000 | 00000 |
| 3/8" | 3" | 1/4" | 2.59" | 5/8" | 0.205" | 3/4" | UHMW Plastic | 0000000 | 00000 |
| 3/8" | 6" | 1/2" | 5.59" | 5/8" | 0.205" | 2" | UHMW Plastic | 0000000 | 00000 |
| 1/2" | 3" | 1/4" | 2.47" | 3/4" | 0.265" | 3/4" | UHMW Plastic | 0000000 | 00000 |
| 1/2" | 4" | 1/2" | 3.47" | 3/4" | 0.265" | 1" | UHMW Plastic | 0000000 | 00000 |
| 1/2" | 5" | 1/2" | 4.47" | 3/4" | 0.265" | 1 1/2" | UHMW Plastic | 0000000 | 00000 |
| 1/2" | 6" | 1/2" | 5.47" | 3/4" | 0.265" | 2" | UHMW Plastic | 0000000 | 00000 |
| 1/2" | 10" | 1/2" | 9.47" | 3/4" | 0.265" | 3" | UHMW Plastic | 0000000 | 00000 |
| 3/4" | 5" | 1/2" | 4.19" | 1 1/4" | 0.405" | 1 1/2" | UHMW Plastic | 0000000 | 00000 |
Round-Belt Idler Pulleys
Nylon Plastic
These pulleys spin freely on built-in bearings to maintain tension for reduced wear and vibration. They are often used with belt tensioners (sold separately). Ball bearings are double sealed to keep dirt out. Nylon pulleys are lightweight and corrosion and abrasion resistant.
For technical drawings and 3-D models, click on a part number.
| For Belt Dia. | OD | For Shaft Dia. | Dia. | Wd. | Groove Dp. | Material | Bearing Material | Each | |
| 1/4" | 4.5" | 3/8" | 3.74" | 55/64" | 0.36" | Nylon Plastic | Steel | 00000000 | 000000 |
| 1/4" | 4.5" | 1/2" | 3.74" | 55/64" | 0.36" | Nylon Plastic | Steel | 00000000 | 00000 |
| 1/4" | 6" | 3/8" | 5.2" | 51/64" | 0.4" | Nylon Plastic | Steel | 00000000 | 00000 |
| 1/4" | 6" | 1/2" | 5.2" | 51/64" | 0.4" | Nylon Plastic | Steel | 00000000 | 00000 |
| 3/8" | 3.1" | 3/8" | 2.45" | 39/64" | 0.3" | Nylon Plastic | Steel | 00000000 | 00000 |
| 3/8" | 3.1" | 1/2" | 2.45" | 39/64" | 0.3" | Nylon Plastic | Steel | 00000000 | 00000 |
| 3/8" | 3.5" | 3/8" | 2.75" | 49/64" | 3/8" | Nylon Plastic | Steel | 00000000 | 00000 |
| 3/8" | 3.5" | 1/2" | 2.75" | 49/64" | 3/8" | Nylon Plastic | Steel | 00000000 | 00000 |
| 3/8" | 5.5" | 3/8" | 4.62" | 9/16" | 0.44" | Nylon Plastic | Steel | 00000000 | 00000 |
| 3/8" | 5.5" | 1/2" | 4.62" | 9/16" | 0.44" | Nylon Plastic | Steel | 00000000 | 00000 |
| 11/16" | 4.8" | 3/8" | 4" | 1 1/16" | 0.41" | Nylon Plastic | Steel | 00000000 | 00000 |
| 11/16" | 4.8" | 1/2" | 4" | 1 1/16" | 0.41" | Nylon Plastic | Steel | 00000000 | 00000 |