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 | |
| 11 | 3/8" | 1" | 1/2" | 9/16" | 3/32" | 3/64" | Steel | Two Set Screws | 00000000 | 0000000 |
| 12 | 3/8" | 1.08" | 1/2" | 5/8" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 13 | 3/8" | 1.17" | 1/2" | 23/32" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 14 | 3/8" | 1.25" | 1/2" | 13/16" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 15 | 3/8" | 1.33" | 1/2" | 57/64" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 16 | 3/8" | 1.41" | 1/2" | 31/32" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 17 | 3/8" | 1.49" | 1/2" | 1 1/32" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 18 | 3/8" | 1.57" | 1/2" | 1 1/8" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 19 | 3/8" | 1.65" | 1/2" | 1 7/32" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 20 | 3/8" | 1.73" | 5/8" | 1 9/32" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 21 | 3/8" | 1.81" | 5/8" | 1 3/8" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 22 | 3/8" | 1.89" | 5/8" | 1 7/16" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 23 | 3/8" | 1.97" | 5/8" | 1 1/2" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 24 | 3/8" | 2.05" | 5/8" | 1 1/2" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 25 | 3/8" | 2.13" | 5/8" | 1 1/2" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 26 | 3/8" | 2.21" | 5/8" | 1 1/2" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 28 | 3/8" | 2.37" | 5/8" | 1 1/2" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 30 | 3/8" | 2.53" | 5/8" | 1 1/2" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 32 | 3/8" | 2.69" | 5/8" | 1 1/2" | __ | __ | Steel | Two Set Screws | 00000000 | 00000 |
| 36 | 3/8" | 3.01" | 3/4" | 1 1/2" | __ | __ | 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) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 24 | 3/8" | 1" | 2.05" | 5/8" | 1 1/2" | Steel | 0000000 | 000000 |
| 25 | 3/8" | 1" | 2.13" | 5/8" | 1 1/2" | Steel | 0000000 | 00000 |
| 30 | 3/8" | 1" | 2.53" | 5/8" | 1 1/2" | Steel | 0000000 | 00000 |
For ANSI 35 Roller Chain (3/8" Pitch) | ||||||||
| 9 | 3/8" | 3/8" | 1.26" | 3/4" | 27/32" | Steel | 00000000 | 00000 |
| 10 | 3/8" | 9/16" | 1.38" | 3/4" | 31/32" | Steel | 00000000 | 00000 |
| 11 | 3/8" | 9/16" | 1.5" | 3/4" | 1 1/16" | Steel | 00000000 | 00000 |
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.
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) | ||||||||||
| 9 | 3/8" | 1.26" | 3/4" | 27/32" | 3/32" | 3/64" | 18-8 Stainless Steel | Two Set Screws | 00000000 | 000000 |
| 10 | 3/8" | 1.38" | 3/4" | 31/32" | 0.094" | 3/64" | 18-8 Stainless Steel | Two Set Screws | 00000000 | 00000 |
| 11 | 3/8" | 1.5" | 3/4" | 1 1/16" | 0.094" | 3/64" | 18-8 Stainless Steel | Two Set Screws | 00000000 | 000000 |
| 12 | 3/8" | 1.63" | 3/4" | 1 7/32" | 0.094" | 3/64" | 18-8 Stainless Steel | Two Set Screws | 00000000 | 00000 |
| 13 | 3/8" | 1.75" | 3/4" | 1 1/4" | 0.094" | 3/64" | 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.
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 25 Roller Chain (1/4" Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 18 | 3/8" | 1/2" | 1.57" | 31/64" | 1" | Nylon Plastic | 000000000 | 000000 |
| 24 | 3/8" | 13/16" | 2.05" | 45/64" | 1 25/32" | Nylon Plastic | 000000000 | 00000 |
For ANSI 35 Roller Chain (3/8" Pitch) | ||||||||
| 10 | 3/8" | 7/16" | 1.38" | 3/4" | 31/32" | Nylon Plastic | 000000000 | 00000 |
| 11 | 3/8" | 1/2" | 1.5" | 3/4" | 1 1/16" | Nylon Plastic | 000000000 | 00000 |
Sprockets for Miniature Roller Chain
Often used in electronic equipment, instrumentation devices, printers, and other compact machinery, these sprockets are made for use with our miniature roller chain.
Acetal sprockets are lightweight, quiet, and nonconductive. Press fit them onto your shaft.
For technical drawings and 3-D models, click on a part number.
Idler Sprockets for ANSI Roller Chain
Maintain constant tension on your drive with these sprockets that press against your chain to take up slack and reduce wear and vibration. They rotate freely on built-in bearings and are for use with roller chain tensioners. Bearings are double sealed to keep dirt out.
For technical drawings and 3-D models, click on a part number.
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.
Split-Tapered Bushings
The tapered barrel on these bushings is split on both sides, allowing them to contract more tightly around the shaft than quick-disconnect and taper-lock bushings. They're for use with split-tapered sprockets and pulleys of the same bushing style. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.
For technical drawings and 3-D models, click on a part number.
Hex Flanged Eccentric Bushings
Often used with V-groove wheels or track roller carriages, these off-center bushings create precise mounting clearance. As you turn the bushing’s hex flange with a wrench, it adjusts the distance between the V-groove wheel or carriage and the rail. Tighten the axle bolt in place once you’ve adjusted them. Made of 303 stainless steel, these bushings have very good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
| For Hole Diameter | Overall Width | Flange Height | Hex Size | Material | Each | |
| 0.591" | 1 11/64" | 7/16" | 7/8" | 303 Stainless Steel | 00000000 | 000000 |
Quick-Grip Screw-Clamp Bushings
Also known as Trantorque bushings, these tighten with a twist of the collar nut—no screws needed. As you tighten the collar nut, the inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear.
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | OD | Overall Wd. | Max. Torque, in.-lbs. | Each | |
Steel | |||||
|---|---|---|---|---|---|
| 3/8" | 3/4" | 7/8" | 440 | 0000000 | 000000 |
Flanged Screw-Clamp Bushings
A mounting flange prevents movement during tightening. These bushings are good for shock loads. When you tighten the included screws, the bushing's inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. They can be mounted on shafts with or without keyways.
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | OD | Overall Wd. | Max. Torque, in.-lbs. | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
| 3/8" | 15/16" | 13/16" | 260 | 42 | Steel | Clamping Screws | 0000000 | 000000 |
Corrosion-Resistant Flanged Screw-Clamp Bushings
Made from stainless steel or plated with nickel, these bushings resist corrosion. A mounting flange prevents movement during tightening. As screw-clamp bushings, they're good for shock loads. When you tighten the clamping screws, the bushing's inner sleeve tightens onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear.
Nickel-plated steel bushings have good corrosion resistance in wet environments. However, the plating may begin to flake with long-term use.
Stainless steel bushings have excellent corrosion resistance and can withstand prolonged exposure to moisture.
For technical drawings and 3-D models, click on a part number.
Light Duty Sleeve Bushings
Reduce the ID of sprockets, pulleys, and gears in low-torque applications. Bushings have a hole for a set screw.
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | OD | Overall Wd. | Set Screw Hole Dia. | Material | Each | |
| 3/8" | 1/2" | 1 1/8" | 3/8" | Steel | 0000000 | 00000 |