About Roller Chain and Sprockets
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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 | Teeth Heat Treatment | Material | Specifications Met | Each | |
For ISO 12B Roller Chain (19.05 mm Pitch) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 13 | 1210 | 89.92 | 25 | 62.69 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
High-Strength HTD Timing Belt Pulleys
These HTD (high torque drive) pulleys have a curved tooth shape that provides higher strength than trapezoidal teeth. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.
Bushing-mount pulleys grip the shaft more securely than pulleys that press fit. Quick-disconnect (QD) bushings and split-tapered bushings sold separately.
For technical drawings and 3-D models, click on a part number.
| OD, mm | Number of Teeth | Pitch, mm | ID | Bore Type | For Bushing Style | Inside Wd., mm | Outside Wd., mm | Overall Wd., mm | Pitch Dia., mm | Number of Flanges | Fabrication | Material | Each | |
For 30 mm Max. Belt Wd. | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 89.92 | 32 | 8 | 1.625" | Finished | Split Tapered Style H | 31.88 | 38.23 | 38.23 | 81.483 | 2 | Machined | Black-Oxide Iron | 00000000 | 000000 |