Roller Chain Trade Size Roller Chain Trade Size |
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System of Measurement System of Measurement |
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Bore Type Bore Type |
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| Machinable | Plain |
For Shaft Type For Shaft Type |
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For Roller Chain Strand Type For Roller Chain Strand Type |
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 | Single |
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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Sprocket Type Sprocket Type |
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Teeth Shape Teeth Shape |
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 | Trapezoidal |
For Belt Trade Size For Belt Trade Size |
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Inside Width Inside Width |
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Pitch Diameter Pitch Diameter |
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About Roller Chain and Sprockets
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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.
| 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 DIN, ISO 20B Roller Chain (31.75 mm Pitch) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 8 | 25 | 57 | 103.6 | 48 | 48 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 9 | 25 | 57 | 113.47 | 48 | 58 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 10 | 25 | 60 | 123.38 | 48 | 69 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 11 | 25 | 70 | 133.33 | 48 | 79 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 12 | 25 | 76 | 143.31 | 48 | 90 | Steel | DIN 8187, ISO 606 | 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.
Timing Belt Idler Pulleys
Add these free-spinning pulleys to your timing belt setup to minimize vibration and keep belts from wearing out. The needle bearing at the center of these pulleys is lined with small, cylindrical rollers that reduce friction as they rotate. This bearing allows both the pulley and the shaft it’s mounted on to spin independently. Made from iron or steel, these pulleys are strong and wear-resistant. The black oxide coating protects the pulleys from corrosion in dry environments.
Trapezoidal teeth on the outside of the pulley fit into teeth inside your timing belt—select a pulley that matches your belt trade size. The maximum belt width should be the same size or larger than the width of your timing belt.
For technical drawings and 3-D models, click on a part number.
| For Max. Belt Wd., mm | OD, mm | Number of Teeth | Pitch, mm | For Shaft Dia., mm | Dia., mm | Bore Type | Inside Wd., mm | Outside Wd., mm | Overall Wd., mm | Pitch Dia., mm | Number of Flanges | Fabrication | Material | Bearing Type | Each | |
For GT Belt Trade Size | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30 | 100 | 36 | 8 | 30 | 90.3 | Plain | 30 | 48 | 48 | 91.67 | 2 | Machined | Black-Oxide Iron | Needle Roller | 0000000 | 0000000 |