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About Roller Chain and Sprockets
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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.
Number of Teeth | For Shaft Dia. | For Max. Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Each | |
For ANSI 140 Roller Chain (1 3/4" Pitch) | ||||||||
---|---|---|---|---|---|---|---|---|
11 | 1 1/2" | 2 3/4" | 7.01" | 2 1/4" | 4 1/4" | Steel | 00000000 | 0000000 |
12 | 1 1/2" | 3" | 7.58" | 2 1/4" | 4 1/2" | Steel | 00000000 | 000000 |
13 | 1 1/2" | 3 5/16" | 8.15" | 2 3/8" | 5 5/16" | Steel | 00000000 | 000000 |
14 | 1 1/2" | 3 3/4" | 8.72" | 2 3/8" | 5 1/2" | Steel | 00000000 | 000000 |
15 | 1 1/2" | 4 1/4" | 9.28" | 2 3/8" | 6 1/4" | Steel | 00000000 | 000000 |
16 | 1 1/2" | 4 1/4" | 9.85" | 2 1/2" | 6 1/4" | Steel | 00000000 | 000000 |
18 | 1 1/2" | 4 1/4" | 10.98" | 2 1/2" | 6 1/4" | Steel | 00000000 | 000000 |
20 | 1 1/2" | 4 1/4" | 12.1" | 2 1/2" | 6 1/4" | Steel | 00000000 | 000000 |
24 | 1 1/2" | 4 1/4" | 14.34" | 2 1/2" | 6 1/4" | Steel | 00000000 | 00000000 |
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.
Bearing | |||||||||
---|---|---|---|---|---|---|---|---|---|
Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Type | Material | Each | |
For ANSI 140 Roller Chain (1 3/4" Pitch) | |||||||||
11 | 1 1/2" | 7.01" | 2 1/4" | 4 1/4" | Steel | Needle Roller | Bronze | 00000000 | 0000000 |