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System of Measurement System of Measurement |
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For Shaft Diameter For Shaft Diameter |
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Bearing Type Bearing Type |
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![]() | Sleeve |
Material Material |
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Sprocket Type Sprocket Type |
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Hub Diameter Hub Diameter |
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For Shaft Type For Shaft Type |
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![]() | Round |
For Roller Chain Strand Type For Roller Chain Strand Type |
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![]() | Single |
Bore Type Bore Type |
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![]() | Finished |
ID ID |
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Bearing Material Bearing Material |
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Shaft Mount Type Shaft Mount Type |
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Overall Width Overall Width | Show |
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Overall Width Overall Width | Hide |
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Teeth Heat Treatment Teeth Heat Treatment |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Roller Chain Standard Roller Chain Standard |
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About Roller Chain and Sprockets
More
Wear-Resistant Idler Sprockets for ANSI Roller Chain


Hardened teeth give these steel sprockets increased wear resistance for a long service life. Designed to rotate freely on built-in bearings, idler sprockets maintain constant tension on your drive by pressing against your chain to take up slack and reduce wear and vibration. They are for use with roller chain tensioners.
Sleeve bearings are self-lubricating.
For technical drawings and 3-D models, click on a part number.
Bearing | |||||||||
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Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Type | Material | Each | |
For ANSI 35 Roller Chain (3/8" Pitch) | |||||||||
20 | 1/2" | 2.59" | 63/64" | 1 1/2" | Steel | Sleeve | Bronze | 0000000 | 000000 |
For ANSI 40 and 41 Roller Chain (1/2" Pitch) | |||||||||
15 | 1/2" | 2.65" | 63/64" | 1 1/2" | Steel | Sleeve | Bronze | 0000000 | 00000 |
For ANSI 50 Roller Chain (5/8" Pitch) | |||||||||
15 | 1/2" | 3.32" | 63/64" | 1 1/2" | Steel | Sleeve | Bronze | 0000000 | 00000 |
For ANSI 60 Roller Chain (3/4" Pitch) | |||||||||
14 | 1/2" | 3.74" | 63/64" | 1 1/2" | Steel | Sleeve | Bronze | 0000000 | 00000 |