System of Measurement System of Measurement |
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Bore Type Bore Type |
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| Machinable | Round |
Sprocket Type Sprocket Type |
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Material Material |
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Overall Width Overall Width | Show |
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Overall Width Overall Width | Hide |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Speed Ratio Speed Ratio |
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Component Component |
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 | Gear |
Gear Type Gear Type |
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 | Bevel |
About Roller Chain and Sprockets
More
About Gears
More
Sprockets for Metric Roller Chain
Designed to meet ISO 606 and DIN 8187 international dimensional standards, these sprockets are for use with compatible ISO and DIN roller chain. 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.
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) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 21 | 16 | 45 | 92.58 | 40 | 70 | Steel | DIN 8187, ISO 606 | 00000000 | 0000000 |
| 26 | 20 | 56 | 112.73 | 40 | 85 | Steel | DIN 8187, ISO 606 | 0000000 | 000000 |
| 30 | 20 | 64 | 128.86 | 40 | 100 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 36 | 20 | 73 | 153.08 | 40 | 110 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
Flush-Mount Screw-Clamp Bushings
Insert these bushings into the bore of your sprocket for flush or recessed mounting. They handle shock loads and have higher torque ratings than self-centering bushings. When you tighten the included clamping 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.
Metal Bevel Gears
A type of miter gear where one gear (sometimes called a pinion) is smaller than the other, bevel gears provide right-angle speed reduction at speed ratios ranging from 2:1 to 5:1. All are carbon steel for strength; they're compatible with plastic bevel gears. Teeth are not hardened so you can harden them to fit your application. Hardening a gear’s teeth increases its wear resistance.
A complete set consists of a gear and pinion (sold separately). For a gear and pinion to mesh correctly, they must have the same pressure angle, pitch/module, and face width. Shaft-mounted pinions come already securely fastened to a shaft.
Speed ratio is the ratio by which shaft speed is reduced when transferring motion from pinion to gear. To increase shaft speed, transfer motion from gear to pinion. Changing shaft speed also changes torque: as speed decreases, torque increases.
For technical drawings and 3-D models, click on a part number.
Hub | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Face Wd., mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Wd., mm | For Shaft Dia., mm | Mounting Distance (A), mm | Dia., mm | Wd., mm | Material | Each | |
Round Bore | ||||||||||||||
| 20 | 2.5 | 20° | 5:1 | 60 | 150 | 151 | 40 | 20 | 50 | 70 | 20 | Black-Oxide 1045 Carbon Steel | 00000000 | 0000000 |
Shaft | Hub | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Face Wd., mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Wd., mm | Dia., mm | Lg., mm | Mounting Distance (B), mm | Dia., mm | Wd., mm | Material | Each | |
| 20 | 2.5 | 20° | 5:1 | 12 | 30 | 37 | 143 | 20.2 | 115 | 83 | 25 | 8 | Black-Oxide 1045 Carbon Steel | 00000000 | 000000 |