Roller Chain Trade Size Roller Chain Trade Size |
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System of Measurement System of Measurement |
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Bore Type Bore Type |
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| Finished |
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| Machinable |
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| Bushing |
OD OD | Show |
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OD OD | Hide |
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For Roller Chain Strand Type For Roller Chain Strand Type |
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 | Single |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Roller Chain Standard Roller Chain Standard |
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Bearing Type Bearing Type |
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 | Ball |
Bearing Material Bearing Material |
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Bearing Seal Type Bearing Seal 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 | |
| 25 | 3/4" | 5.32" | 1 1/4" | 3" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 25 | 7/8" | 5.32" | 1 1/4" | 3" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 25 | 1" | 5.32" | 1 1/4" | 3" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 25 | 1 1/8" | 5.32" | 1 1/4" | 3" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 25 | 1 3/16" | 5.32" | 1 1/4" | 3" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 25 | 1 1/4" | 5.32" | 1 1/4" | 3" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 25 | 1 3/8" | 5.32" | 1 1/4" | 3" | 5/16" | 5/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 25 | 1 7/16" | 5.32" | 1 1/4" | 3" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
| 25 | 1 1/2" | 5.32" | 1 1/4" | 3" | 3/8" | 3/16" | 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 50 Roller Chain (5/8" Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 25 | 3/4" | 2" | 5.32" | 1 1/4" | 3" | Steel | 00000000 | 000000 |
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) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 25 | 1/2" | 1 5/8" | 5.32" | 1 1/4" | 3" | 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.
| Number of Teeth | For Shaft Dia. | For Max. Shaft Dia. | OD | Overall Wd. | Material | Each | |
For ANSI 50 Roller Chain (5/8" Pitch) | |||||||
|---|---|---|---|---|---|---|---|
| 25 | 23/32" | 4 9/32" | 5.32" | 11/32" | Steel | 0000000 | 000000 |
Wear-Resistant Idler Sprockets for ANSI Roller Chain
Hardened teeth give these steel sprockets increased wear resistance for a long service life. 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.
Ball bearings are double sealed to keep dirt out.
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 50 Roller Chain (5/8" Pitch) | |||||||||
| 25 | 3/4" | 5.32" | 39/64" | 1 3/4" | Steel | Ball | Steel | 00000000 | 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.
| Number of Teeth | For Bushing Style | OD | Overall Wd. | Hub Dia. | Material | Each | |
For ANSI 50 Roller Chain (5/8" Pitch) | |||||||
|---|---|---|---|---|---|---|---|
| 25 | SDS | 5.32" | 3/4" | 3 3/16" | Steel | 00000000 | 000000 |
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.
Sprockets for P1- and Q1-Style bushings have a keyway that fits a matching key on the bushing.
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 50 Roller Chain (5/8" Pitch) | |||||||
|---|---|---|---|---|---|---|---|
| 25 | Q1 | 5.32" | 2 25/32" | 4 1/8" | Steel | 0000000 | 0000000 |
H Series Quick-Disconnect Timing Belt Pulleys
Move heavy loads without slippage—pulleys mount with quick-disconnect (QD) bushings (sold separately) for a more secure grip on the shaft than set screws. Bushing is not included. 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 | ID | Bore Type | For Bushing Style | Inside Wd. | Outside Wd. | Overall Wd. | Pitch Dia. | Number of Flanges | Fabrication | Material | Each | |
For 2" Max. Belt Wd. | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5.32" | 32 | 0.500" | 2.812" | Finished | Quick Disconnect Style SK | 2.094" | 2.344" | 2.344" | 5.093" | 2 | Machined | Black-Oxide Iron | 0000000 | 0000000 |