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Round-Belt Idler Pulleys


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.
Brass pulleys are nonsparking and fit in extremely small spaces.
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 | |
3/32" | 0.8" | 1/8" | 0.654" | 9/64" | 0.048" | Brass | Stainless Steel | 000000 | 000000 |
3/32" | 1" | 1/8" | 0.904" | 5/32" | 0.048" | Brass | Stainless Steel | 000000 | 00000 |
3/32" | 1.5" | 1/8" | 1.404" | 5/32" | 0.048" | Brass | Stainless Steel | 000000 | 00000 |
1/8" | 1" | 1/4" | 0.872" | 3/16" | 0.064" | Brass | Stainless Steel | 000000 | 00000 |
1/8" | 1.5" | 1/4" | 1.372" | 3/16" | 0.064" | Brass | Stainless Steel | 000000 | 00000 |
1/8" | 1.5" | 1/4" | 1.372" | 13/64" | 0.064" | Brass | Stainless Steel | 000000 | 00000 |
1/8" | 2" | 1/4" | 1.872" | 13/64" | 0.064" | Brass | Stainless Steel | 000000 | 00000 |
3/16" | 2" | 3/8" | 1.81" | 9/32" | 0.095" | Brass | Stainless Steel | 000000 | 00000 |
3/16" | 2.5" | 3/8" | 2.31" | 9/32" | 0.095" | Brass | Stainless Steel | 0000000 | 00000 |
Mounted Pulleys for Rope—For Horizontal Pulling





Mount these pulleys to a flat surface to assist with horizontal pulling or to guide a rope.
For technical drawings and 3-D models, click on a part number.
Mounting Hole | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Rope Dia. | Capacity, lbs. | OD | Wd. | Overall Lg. | Overall Ht. | Material | Housing Material | No. of | Dia. | Ctr.-to-Ctr. (A) | Ctr.-to-Ctr. (B) | Each | ||
Without Bearing | ||||||||||||||
1 | 1/4" | Not Rated | 11/16" | 7/8" | 1 7/8" | 1 1/8" | Bronze | Bronze | 2 | 5/32" | 1 3/8" | __ | 0000000 | 000000 |
2 | 3/8" | Not Rated | 1 1/2" | 2 1/2" | 2 1/8" | 2 1/8" | Bronze | Bronze | 4 | 17/64" | 1 3/8" | 1 3/4" | 0000000 | 00000 |
Hanging Pulleys for Rope—For Horizontal Pulling


Hang these pulleys from hooks, screws, and bolts to assist with horizontal pulling or to guide a rope.
Pulley for 3/8" dia. rope can be set to ratchet even when not under load.
For technical drawings and 3-D models, click on a part number.