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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 | |
| 35 | 5/8" | 4.39" | 7/8" | 2 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 3/4" | 4.39" | 7/8" | 2 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 7/8" | 4.39" | 7/8" | 2 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1" | 4.39" | 7/8" | 2 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1 1/8" | 4.39" | 7/8" | 2 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1 3/16" | 4.39" | 7/8" | 2 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1 1/4" | 4.39" | 7/8" | 2 1/4" | 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 | |
| 35 | 5/8" | 5.86" | 1" | 3 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 3/4" | 5.86" | 1" | 3 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 7/8" | 5.86" | 1" | 3 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1" | 5.86" | 1" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1 1/8" | 5.86" | 1" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1 3/16" | 5.86" | 1" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1 1/4" | 5.86" | 1" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1 3/8" | 5.86" | 1" | 3 1/4" | 5/16" | 5/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1 7/16" | 5.86" | 1" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1 1/2" | 5.86" | 1" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
Keyway | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
| 35 | 5/8" | 5.86" | 1" | 3 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 3/4" | 5.86" | 1" | 3 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 7/8" | 5.86" | 1" | 3 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1" | 5.86" | 1" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1 1/8" | 5.86" | 1" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1 1/4" | 5.86" | 1" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 35 | 1 1/2" | 5.86" | 1" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
Keyway | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
| 35 | 3/4" | 7.32" | 1 1/4" | 3 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 0000000 |
| 35 | 7/8" | 7.32" | 1 1/4" | 3 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1" | 7.32" | 1 1/4" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 1/8" | 7.32" | 1 1/4" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 3/16" | 7.32" | 1 1/4" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 1/4" | 7.32" | 1 1/4" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 3/8" | 7.32" | 1 1/4" | 3 1/4" | 5/16" | 5/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 7/16" | 7.32" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 1/2" | 7.32" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 5/8" | 7.32" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 3/4" | 7.32" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 15/16" | 7.32" | 1 1/4" | 3 1/4" | 1/2" | 1/4" | Steel | Two Set Screws | 00000000 | 000000 |
Keyway | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
| 35 | 1" | 8.78" | 1 1/4" | 4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 0000000 |
| 35 | 1 1/8" | 8.78" | 1 1/4" | 4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 3/16" | 8.78" | 1 1/4" | 4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 1/4" | 8.78" | 1 1/4" | 4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 3/8" | 8.78" | 1 1/4" | 4" | 5/16" | 5/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 7/16" | 8.78" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 1/2" | 8.78" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 5/8" | 8.78" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 3/4" | 8.78" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 35 | 1 15/16" | 8.78" | 1 1/4" | 4" | 1/2" | 1/4" | Steel | Two Set Screws | 00000000 | 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 35 Roller Chain (3/8" Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 35 | 5/8" | 1 1/2" | 4.39" | 7/8" | 2 1/4" | Steel | 00000000 | 000000 |
For ANSI 40 Roller Chain (1/2" Pitch) | ||||||||
| 35 | 5/8" | 2 1/4" | 5.86" | 1" | 3 1/4" | Steel | 00000000 | 00000 |
For ANSI 50 Roller Chain (5/8" Pitch) | ||||||||
| 35 | 3/4" | 2 1/4" | 7.32" | 1 1/4" | 3 1/4" | Steel | 00000000 | 00000 |
For ANSI 60 Roller Chain (3/4" Pitch) | ||||||||
| 35 | 1" | 2 3/4" | 8.78" | 1 1/4" | 4" | 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 25 Roller Chain (1/4" Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 35 | 1/2" | 1" | 2.93" | 45/64" | 2" | Nylon Plastic | 00000000 | 000000 |
For ANSI 35 Roller Chain (3/8" Pitch) | ||||||||
| 35 | 1/2" | 1 7/16" | 4.39" | 7/8" | 2 3/8" | Nylon Plastic | 00000000 | 00000 |
For ANSI 40 Roller Chain (1/2" Pitch) | ||||||||
| 35 | 1/2" | 1 1/2" | 5.86" | 1" | 3 1/4" | Nylon Plastic | 00000000 | 00000 |
For ANSI 50 Roller Chain (5/8" Pitch) | ||||||||
| 35 | 1/2" | 1 3/4" | 7.32" | 1 1/4" | 3 1/4" | Nylon Plastic | 000000000 | 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 35 Roller Chain (3/8" Pitch) | |||||||
|---|---|---|---|---|---|---|---|
| 35 | 5/8" | 3 3/4" | 4.39" | 11/64" | Steel | 00000000 | 000000 |
For ANSI 40 Roller Chain (1/2" Pitch) | |||||||
| 35 | 19/32" | 5 1/64" | 5.86" | 9/32" | Steel | 0000000 | 00000 |
For ANSI 50 Roller Chain (5/8" Pitch) | |||||||
| 35 | 23/32" | 6 9/32" | 7.32" | 11/32" | Steel | 0000000 | 00000 |
For ANSI 60 Roller Chain (3/4" Pitch) | |||||||
| 35 | 15/16" | 7 35/64" | 8.78" | 15/32" | Steel | 0000000 | 00000 |
For ANSI 80 Roller Chain (1" Pitch) | |||||||
| 35 | 1 3/16" | 10 5/64" | 11.71" | 37/64" | Steel | 00000000 | 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 40 Roller Chain (1/2" Pitch) | |||||||||
| 35 | 5/8" | 5.86" | 23/32" | 1 9/16" | Steel | Ball | Steel | 00000000 | 000000 |
Metal Gears and Gear Racks—20° Pressure Angle
The current industry standard, these 20° pressure angle gears have thicker, stronger teeth than 14½° pressure angle gears. Compared to plastic gears and racks, they’re better for high-load, high-speed, and heavy duty applications. Also known as spur gears.
Combine gears with different numbers of teeth to change speed and torque in your assembly. Combine a gear and rack to convert rotary motion into linear motion. To minimize your footprint, mount one or more standard gears inside of an internal gear.
For components to mesh correctly, they must have the same pressure angle and pitch/module.
Carbon steel components have hard, strong, and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals. They're best for high-torque machines, like lifting equipment, and heavy duty applications, such as rock crushing. Gears with teeth that are not hardened can be hardened to fit your application.
Stainless steel gears and racks resist rust in damp and wet environments, so they're commonly used in food-processing plants and other areas with frequent cleaning. Gears with a clamping bore have a built-in clamp that securely grips shafts without marring them. Use the included clamping screw to tighten or loosen the grip.
For technical drawings and 3-D models, click on a part number.
Hub | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gear Pitch | Number of Teeth | Gear Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Material | Teeth Heat Treatment | Dia. | Wd. | Each | |
Round Bore | ||||||||||||
| 20 | 35 | 1 3/4" | 1.85" | 1/2" | 1" | 1/2" | 1020 Carbon Steel | Not Hardened | 1.47" | 0.5" | 0000000 | 000000 |
Hub | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Module | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Material | Teeth Heat Treatment | Dia., mm | Wd., mm | Clamping Screw Thread Size | Each | |
Clamping Bore with Clamping Screw | |||||||||||||
| 1 | 35 | 35 | 37 | 6 | 16 | 8 | 303 Stainless Steel | Not Hardened | 19 | 10 | M3 | 0000000 | 000000 |
Metal Gears and Gear Racks—14 1/2° Pressure Angle
A former industry standard, 14½° pressure angle gears are often found on older machinery. Made of carbon steel, they have high strength and are better than plastic gears and gear racks for high-load, high-speed, and heavy duty applications.
Combine gears with different numbers of teeth to change speed and torque in your assembly. Combine a gear and rack to convert rotary motion into linear motion.
For components to mesh correctly, they must have the same pressure angle and pitch.
Gears with machinable bore have a large hub diameter so you can machine them to fit your shaft.
Gears with teeth that are not hardened can be hardened to fit your application. Hardening a gear's teeth increases its wear resistance.
For technical drawings and 3-D models, click on a part number.
Hub | Keyway | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gear Pitch | Number of Teeth | Gear Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Material | Teeth Heat Treatment | Dia. | Wd. | Wd. | Dp. | Set Screw Thread Size | Each | |
Round/Machinable Bore | |||||||||||||||
| 10 | 35 | 3 1/2" | 3.7" | 1" | 1.875" | 3/4"-1 5/16" | 1144 Carbon Steel | Not Hardened | 2.25" | 0.875" | __ | __ | __ | 000000 | 000000 |
Keyed Bore with Set Screw | |||||||||||||||
| 10 | 35 | 3 1/2" | 3.7" | 1" | 1.875" | 3/4" | 1144 Carbon Steel | Not Hardened | 2.25" | 0.875" | 0.188" | 0.094" | 1/4"-20 | 0000000 | 000000 |
Plastic Gears and Gear Racks—20° Pressure Angle
The current industry standard, these 20° pressure angle gears have thicker, stronger teeth than 14½° pressure angle gears. Made of plastic, they run quieter than metal gears and have good corrosion and chemical resistance. They’re also known as spur gears.
Combine gears with different numbers of teeth to change speed and torque in your assembly. Combine a gear and rack to convert rotary motion into linear motion.
For components to mesh correctly, they must have the same pressure angle and pitch/module.
Acetal gears are best suited for use in light duty machines or for prototyping.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Module | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Material | Fabrication | Color | Dia., mm | Wd., mm | Each | |
Round Bore | |||||||||||||
| 1 | 35 | 35 | 37 | 6 | 12 | 6 | Acetal Plastic | Molded | White | 14 | 6 | 00000000 | 000000 |