System of Measurement System of Measurement |
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Bore Type Bore Type |
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| Bushing |
OD OD | Show |
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OD OD | Hide |
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Material Material |
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Roller Chain Standard Roller Chain Standard |
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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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For Bushing Type For Bushing Type |
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About Roller Chain and Sprockets
More
Sprockets for ANSI Roller Chain
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.
Keyway | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
| 21 | 1/2" | 2.71" | 7/8" | 2" | __ | __ | Steel | Two Set Screws | 00000000 | 000000 |
| 21 | 5/8" | 2.71" | 7/8" | 2" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 21 | 3/4" | 2.71" | 7/8" | 2" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 21 | 7/8" | 2.71" | 7/8" | 2" | 3/16" | 3/32" | Steel | Two Set Screws | 0000000 | 00000 |
| 21 | 1" | 2.71" | 7/8" | 2" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
Keyway | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
| 12 | 5/8" | 2.71" | 1" | 1 63/64" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 12 | 3/4" | 2.71" | 1" | 1 63/64" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 12 | 7/8" | 2.71" | 1" | 1 63/64" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 12 | 1" | 2.71" | 1" | 1 63/64" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 12 | 1 1/8" | 2.71" | 1" | 1 63/64" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 12 | 1 3/16" | 2.71" | 1" | 1 63/64" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 12 | 1 1/4" | 2.71" | 1" | 1 63/64" | 1/4" | 1/8" | 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.
Wear-Resistant Sprockets for ANSI Roller Chain
Hardened teeth give these steel sprockets increased wear resistance for a long service life. Mount them onto your shaft and secure with a set screw—no machining necessary.
For technical drawings and 3-D models, click on a part number.
Keyway | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
| 21 | 1/2" | 2.71" | 7/8" | 2" | __ | __ | Steel | Two Set Screws | 00000000 | 000000 |
| 21 | 5/8" | 2.71" | 7/8" | 2" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 21 | 3/4" | 2.71" | 7/8" | 2" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 21 | 7/8" | 2.71" | 7/8" | 2" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 21 | 1" | 2.71" | 7/8" | 2" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
Keyway | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
| 12 | 5/8" | 2.71" | 1" | 1 63/64" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 12 | 3/4" | 2.71" | 1" | 1 63/64" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 12 | 7/8" | 2.71" | 1" | 1 63/64" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 12 | 1" | 2.71" | 1" | 1 63/64" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 12 | 1 1/8" | 2.71" | 1" | 1 63/64" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 12 | 1 3/16" | 2.71" | 1" | 1 63/64" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 12 | 1 1/4" | 2.71" | 1" | 1 63/64" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
Corrosion-Resistant Sprockets for ANSI Roller Chain
Mount these sprockets onto your shaft and secure with a set screw—no machining necessary. Made of stainless steel, they withstand washdown conditions and harsh environments.
For technical drawings and 3-D models, click on a part number.
Keyway | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
For ANSI 35 Roller Chain (3/8" Pitch) | ||||||||||
| 21 | 1/2" | 2.71" | 7/8" | 2" | 1/8" | 1/16" | 18-8 Stainless Steel | Two Set Screws | 00000000 | 0000000 |
| 21 | 5/8" | 2.71" | 7/8" | 2" | 3/16" | 3/32" | 18-8 Stainless Steel | Two Set Screws | 00000000 | 000000 |
| 21 | 3/4" | 2.71" | 7/8" | 2" | 3/16" | 3/32" | 18-8 Stainless Steel | Two Set Screws | 00000000 | 000000 |
| 21 | 7/8" | 2.71" | 7/8" | 2" | 3/16" | 3/32" | 18-8 Stainless Steel | Two Set Screws | 00000000 | 000000 |
| 21 | 1" | 2.71" | 7/8" | 2" | 1/4" | 1/8" | 18-8 Stainless Steel | Two Set Screws | 00000000 | 000000 |
Machinable-Bore Corrosion-Resistant 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. Made of stainless steel, they withstand washdown conditions and harsh environments.
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 50 Roller Chain (5/8" Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 12 | 5/8" | 1 1/4" | 2.71" | 1" | 1 63/64" | 18-8 Stainless Steel | 00000000 | 0000000 |
Lightweight Sprockets for ANSI Roller Chain
Made of nylon, these sprockets are lightweight, quiet, and corrosion resistant. 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 50 Roller Chain (5/8" Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 12 | 1/2" | 1" | 2.71" | 1" | 1 63/64" | Nylon Plastic | 00000000 | 000000 |
Flat Sprockets for ANSI Roller Chain
Also known as A-plate sprockets, these have a slim profile that fits in narrow spaces. 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.
Sprockets for Double-Strand ANSI Roller Chain
These sprockets come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size. All have hardened teeth for increased wear resistance and a long service life.
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 50-2 Roller Chain (5/8" Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 12 | 5/8" | 1 1/8" | 2.71" | 1 3/4" | 1 11/16" | Steel | 0000000 | 000000 |
Wide-Hub Idler Sprockets for ANSI Roller Chain
A wide hub provides these sprockets with 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. Bearings are self-lubricating.
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 35 Roller Chain (3/8" Pitch) | |||||||||
| 21 | 7/8" | 2.71" | 1 1/16" | 2" | Steel | Sleeve | Bronze | 0000000 | 000000 |
Quick-Disconnect (QD) Bushing-Bore Sprockets for ANSI Roller Chain
The same sprocket can be used with different shaft diameters; choose a compatible quick-disconnect bushing with the bore size you need.
For technical drawings and 3-D models, click on a part number.
Split-Tapered Bushing-Bore Sprockets for ANSI Roller Chain
Since these sprockets grip bushings more tightly than taper-lock sprockets, they’re often used in high-torque applications. The same sprocket can be used with different shaft diameters; choose a compatible split-tapered bushing with the bore size you need.
For technical drawings and 3-D models, click on a part number.
| Number of Teeth | For Bushing Style | OD | Overall Wd. | Hub Dia. | Material | Each | |
For ANSI 35 Roller Chain (3/8" Pitch) | |||||||
|---|---|---|---|---|---|---|---|
| 21 | H | 2.71" | 1 1/2" | 2 1/2" | Steel | 0000000 | 000000 |