Number of Teeth Number of Teeth | Show |
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Number of Teeth Number of Teeth | Hide |
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Bore Type Bore Type |
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| Finished |
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| Machinable |
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| Bushing |
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| Round |
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| Plain |
Roller Chain Standard Roller Chain Standard |
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Specifications Met Specifications Met |
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Sprocket Type Sprocket Type |
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For Shaft Type For Shaft Type |
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 | Round |
Pitch Diameter Pitch Diameter |
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Finish Finish |
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Component Component |
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 | Gear |
About Roller Chain and Sprockets
More
About Gears
More
Flat Sprockets for Metric Roller Chain
With metric teeth and slim profile, these sprockets allow your ISO roller chain to reach narrow spaces. They're commonly referred to as A-plate sprockets. Machine the unfinished bore to fit your shaft—sprockets come machined to the shaft diameter listed and are machinable up to the maximum shaft diameter size. Sprockets meet DIN 8187 and ISO 606, international standards for sprockets and roller chains.
For technical drawings and 3-D models, click on a part number.
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.
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 12B Roller Chain (19.05 mm Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 68 | 2517 | 422.66 | 44 | 107.95 | Steel | DIN 8187, ISO 606 | 00000000 | 0000000 |
High-Strength GT Timing Belt Pulleys
For higher speed or higher torque applications, these GT series timing belt pulleys provide a more precise fit than HTD pulleys. Use them where accuracy is critical, such as in storage and retrieval systems or in robotics. Similar to HTD timing belt pulleys, their teeth are curved for high strength. The curved teeth create positive grip engagement with timing belts, so these pulleys do not require re-tensioning—unlike drives using V-belts or sheaves. And unlike chain drives, there’s no metal-on-metal contact, so these pulleys don’t require lubrication.
Anodized aluminum pulleys are lightweight and resist corrosion. They have a finished bore and come with set screws for mounting on shafts.
For technical drawings and 3-D models, click on a part number.
| Number of Teeth | Pitch, mm | For Shaft Diameter | Bore Type | Outside Width, mm | Overall Width, mm | Pitch Diameter, mm | Fabrication | Material | Hub Diameter, mm | Each | |
For 9 mm Maximum Belt Width | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 68 | 3 | 5/16" | Finished | 12.7 | 22.26 | 64.948 | Machined | Anodized Aluminum | 31.75 | 00000000 | 000000 |
| Number of Teeth | Pitch, mm | ID | Bore Type | For Bushing Style | Inside Width, mm | Outside Width, mm | Overall Width, mm | Pitch Diameter, mm | Number of Flanges | Fabrication | Material | Each | |
For 40 mm Maximum Belt Width | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 68 | 14 | 4.25" | Plain | Taper-Lock Style 3020 | 46.23 | 54.1 | 54.1 | 303.022 | 2 | Cast, Machined | Black-Oxide Iron | 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.
Hub | ||||||||||||
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| Module | Number of Teeth | Pitch Dia., mm | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Material | Teeth Heat Treatment | Dia., mm | Wd., mm | Each | |
Round Bore | ||||||||||||
| 1.5 | 68 | 102 | 105 | 15 | 25 | 15 | Black-Oxide 1045 Carbon Steel | Not Hardened | 55 | 10 | 00000000 | 000000 |