About Roller Chain and Sprockets
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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 | |
| 20 | 1" | 6.91" | 1 1/2" | 4 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 0000000 |
| 20 | 1 1/8" | 6.91" | 1 1/2" | 4 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 0000000 | 000000 |
| 20 | 1 3/16" | 6.91" | 1 1/2" | 4 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 1/4" | 6.91" | 1 1/2" | 4 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 3/8" | 6.91" | 1 1/2" | 4 1/4" | 5/16" | 5/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 7/16" | 6.91" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 1/2" | 6.91" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 5/8" | 6.91" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 3/4" | 6.91" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 15/16" | 6.91" | 1 1/2" | 4 1/4" | 1/2" | 1/4" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 2" | 6.91" | 1 1/2" | 4 1/4" | 1/2" | 1/4" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 2 3/16" | 6.91" | 1 1/2" | 4 1/4" | 1/2" | 1/4" | Steel | Two Set Screws | 0000000 | 000000 |
| 20 | 2 7/16" | 6.91" | 1 1/2" | 4 1/4" | 5/8" | 5/16" | Steel | Two Set Screws | 000000 | 000000 |
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 80 Roller Chain (1" Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 20 | 1" | 2 3/4" | 6.91" | 1 1/2" | 4 1/4" | Steel | 0000000 | 0000000 |
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 | |
| 20 | 1" | 6.91" | 1 1/2" | 4 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 0000000 |
| 20 | 1 1/8" | 6.91" | 1 1/2" | 4 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 3/16" | 6.91" | 1 1/2" | 4 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 1/4" | 6.91" | 1 1/2" | 4 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 3/8" | 6.91" | 1 1/2" | 4 1/4" | 5/16" | 5/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 7/16" | 6.91" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 1/2" | 6.91" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 5/8" | 6.91" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 3/4" | 6.91" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 1 15/16" | 6.91" | 1 1/2" | 4 1/4" | 1/2" | 1/4" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 2" | 6.91" | 1 1/2" | 4 1/4" | 1/2" | 1/4" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 2 3/16" | 6.91" | 1 1/2" | 4 1/4" | 1/2" | 1/4" | Steel | Two Set Screws | 00000000 | 000000 |
| 20 | 2 7/16" | 6.91" | 1 1/2" | 4 1/4" | 5/8" | 5/16" | Steel | Two Set Screws | 00000000 | 000000 |
Flat Sprockets for ANSI Roller Chain
Also known as A-plate and weld sprockets, these have a slim profile that fits in narrow spaces and are often welded directly to a shaft.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. | Material | Each | |
For ANSI 80 Roller Chain (1" Pitch) | |||||||
|---|---|---|---|---|---|---|---|
| 20 | 15/16" | 5 9/32" | 6.91" | 37/64" | Steel | 0000000 | 000000 |