Clear All
System of Measurement System of Measurement |
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Number of Teeth Number of Teeth |
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Roller Chain Trade Size Roller Chain Trade Size |
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Material Material |
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Bore Type Bore Type |
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| Finished | Machinable |
OD OD | Show |
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OD OD | Hide |
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Hub Diameter Hub Diameter |
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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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Shaft Mount Type Shaft Mount Type |
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Sprocket Type Sprocket 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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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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Overall Width Overall Width |
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For Maximum Shaft Diameter For Maximum Shaft Diameter |
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Keyway Width Keyway Width |
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Keyway Depth Keyway Depth |
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About Roller Chain and Sprockets
More
Sprockets for ANSI Roller Chain
Without Keyway
With Keyway
Mount these sprockets onto your shaft and secure with a set screw—no machining necessary.
For technical drawings and 3-D models, click on a part number.
For ANSI 25 Roller Chain (1/4" Pitch)
Keyway | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
| 21 | 1/4" | 1.81" | 5/8" | 1 3/8" | __ | __ | Steel | Two Set Screws | 00000000 | 000000 |
| 21 | 3/8" | 1.81" | 5/8" | 1 3/8" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 21 | 1/2" | 1.81" | 5/8" | 1 3/8" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 21 | 5/8" | 1.81" | 5/8" | 1 3/8" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 21 | 3/4" | 1.81" | 5/8" | 1 3/8" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 21 | 7/8" | 1.81" | 5/8" | 1 3/8" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
Machinable-Bore Sprockets for ANSI Roller Chain
For a custom fit on your shaft, these sprockets can be machined to your exact specifications. They come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size.
For technical drawings and 3-D models, click on a part number.
| Number of Teeth | For Shaft Dia. | For Max. Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Each | |
For ANSI 25 Roller Chain (1/4" Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 21 | 1/4" | 7/8" | 1.81" | 5/8" | 1 3/8" | Steel | 0000000 | 000000 |