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About Roller Chain and Sprockets
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Idler Sprockets for ANSI Roller Chain
Maintain constant tension on your drive with these sprockets that press against your chain to take up slack and reduce wear and vibration. They rotate freely on built-in bearings and are for use with roller chain tensioners. Bearings are double sealed to keep dirt out.
For technical drawings and 3-D models, click on a part number.
Bearing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Type | Material | Each | |
For ANSI 40 Roller Chain (1/2" Pitch) | |||||||||
| 18 | 1/2" | 3.14" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 000000 |
| 18 | 5/8" | 3.14" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
For ANSI 41 Roller Chain (1/2" Pitch) | |||||||||
| 18 | 1/2" | 3.14" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
| 18 | 5/8" | 3.14" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
For ANSI 50 Roller Chain (5/8" Pitch) | |||||||||
| 17 | 1/2" | 3.72" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
| 17 | 5/8" | 3.72" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
For ANSI 60 Roller Chain (3/4" Pitch) | |||||||||
| 15 | 1/2" | 3.98" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
| 15 | 5/8" | 3.98" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |