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


Hardened teeth give these steel sprockets increased wear resistance for a long service life. The wide hub provides stability under heavy loads. 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.
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 160 Roller Chain (2" Pitch) | |||||||||
9 | 1 1/2" | 6.7" | 2 1/4" | 3 5/8" | Steel | Needle Roller | Bronze | 00000000 | 0000000 |
L Series Corrosion-Resistant Timing Belt Pulleys
Pulleys are anodized aluminum, which is more corrosion resistant than steel. All are L series (light) and have trapezoidal teeth. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.
For technical drawings and 3-D models, click on a part number.



OD | Number of Teeth | Pitch | For Shaft Dia. | Bore Type | Inside Wd. | Outside Wd. | Overall Wd. | Pitch Dia. | Number of Flanges | Fabrication | Material | Hub Dia. | Each | |
For 1/2" Max. Belt Wd. | ||||||||||||||
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5" | 40 | 0.375" | 1/2" | Finished | 0.58" | 0.75" | 1.375" | 4.775" | 2 | Machined | Anodized Aluminum | 3.625" | 000000 | 000000 |
For 3/4" Max. Belt Wd. | ||||||||||||||
5" | 40 | 0.375" | 1/2" | Finished | 0.83" | 1" | 1.5" | 4.775" | 2 | Machined | Anodized Aluminum | 3.625" | 000000 | 00000 |
For 1" Max. Belt Wd. | ||||||||||||||
5" | 40 | 0.375" | 1/2" | Finished | 1.08" | 1.25" | 1.75" | 4.775" | 2 | Machined | Anodized Aluminum | 3.625" | 000000 | 000000 |
H Series Timing Belt Pulleys
Pulleys are H series (heavy) and have trapezoidal teeth. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.
For technical drawings and 3-D models, click on a part number.



OD | Number of Teeth | Pitch | For Shaft Dia. | Bore Type | Inside Wd. | Outside Wd. | Overall Wd. | Pitch Dia. | Number of Flanges | Fabrication | Material | Hub Dia. | Each | |
For 1" Max. Belt Wd. | ||||||||||||||
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4.703" | 28 | 0.500" | 3/4" | Plain | 1.063" | 1.313" | 2.438" | 4.456" | 2 | Sintered | Steel | 3.625" | 0000000 | 0000000 |