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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 | |
| 38 | 5/8" | 6.33" | 1" | 3 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 3/4" | 6.33" | 1" | 3 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 38 | 7/8" | 6.33" | 1" | 3 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 38 | 1" | 6.33" | 1" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 38 | 1 1/8" | 6.33" | 1" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 38 | 1 3/16" | 6.33" | 1" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 38 | 1 1/4" | 6.33" | 1" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
| 38 | 1 3/8" | 6.33" | 1" | 3 1/4" | 5/16" | 5/32" | Steel | Two Set Screws | 00000000 | 00000 |
| 38 | 1 7/16" | 6.33" | 1" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
| 38 | 1 1/2" | 6.33" | 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 | |
| 38 | 3/4" | 7.92" | 1 1/4" | 3 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 0000000 |
| 38 | 7/8" | 7.92" | 1 1/4" | 3 1/4" | 3/16" | 3/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1" | 7.92" | 1 1/4" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 1/8" | 7.92" | 1 1/4" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 3/16" | 7.92" | 1 1/4" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 1/4" | 7.92" | 1 1/4" | 3 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 3/8" | 7.92" | 1 1/4" | 3 1/4" | 5/16" | 5/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 7/16" | 7.92" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 1/2" | 7.92" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 5/8" | 7.92" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 3/4" | 7.92" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 15/16" | 7.92" | 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 | |
| 38 | 1" | 9.5" | 1 1/4" | 4 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 0000000 |
| 38 | 1 1/8" | 9.5" | 1 1/4" | 4 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 3/16" | 9.5" | 1 1/4" | 4 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 1/4" | 9.5" | 1 1/4" | 4 1/4" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 3/8" | 9.5" | 1 1/4" | 4 1/4" | 5/16" | 5/32" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 7/16" | 9.5" | 1 1/4" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 1/2" | 9.5" | 1 1/4" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 5/8" | 9.5" | 1 1/4" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 3/4" | 9.5" | 1 1/4" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 1 15/16" | 9.5" | 1 1/4" | 4 1/4" | 1/2" | 1/4" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 2" | 9.5" | 1 1/4" | 4 1/4" | 1/2" | 1/4" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 2 3/16" | 9.5" | 1 1/4" | 4 1/4" | 1/2" | 1/4" | Steel | Two Set Screws | 00000000 | 000000 |
| 38 | 2 7/16" | 9.5" | 1 1/4" | 4 1/4" | 5/8" | 5/16" | Steel | Two Set Screws | 00000000 | 000000 |
Sprockets for Double-Strand Metric Roller Chain
The double row of teeth on these sprockets are designed to fit into metric ISO double-strand roller chain. They have an unfinished bore that’s machined to the shaft diameter size listed. Machine them to fit any shaft up to the maximum shaft diameter size. The extended hub makes these sprockets more stable and more durable than flat sprockets. They meet ISO 606 (formerly DIN 8187), which is an international standard for sprocket and roller chain dimensions and materials.
For technical drawings and 3-D models, click on a part number.
| Number of Teeth | For Shaft Dia., mm | For Max. Shaft Dia., mm | OD, mm | Overall Wd., mm | Hub Dia., mm | Material | Specifications Met | Each | |
For ISO 08B-2 Roller Chain (12.7 mm Pitch) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 38 | 20 | 73 | 161.16 | 45 | 110 | Steel | DIN 8187, ISO 606 | 00000000 | 0000000 |
Taper-Lock Bushing-Bore Sprockets for Metric Roller Chain
While their teeth fit into metric ISO roller chain, these sprockets use taper-lock bushings to grip shafts. That means you can switch to a different diameter shaft by changing the bushing instead of machining the sprocket. Bushings mount flush inside these sprockets; secure them in place by tightening the set screws included with the bushings. These sprockets have an extended hub that makes them more stable and durable than flat sprockets. All meet ISO 606 (formerly DIN 8187), which is an international standard for sprocket and roller chain dimensions and materials.
For technical drawings and 3-D models, click on a part number.
| Number of Teeth | For Bushing Style | OD, mm | Overall Wd., mm | Hub Dia., mm | Material | Specifications Met | Each | |
For ISO 08B Roller Chain (12.7 mm Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 38 | 1610 | 160.53 | 25 | 76 | Steel | DIN 8187, ISO 606 | 00000000 | 0000000 |
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.
For technical drawings and 3-D models, click on a part number.
