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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.
XL Series Corrosion-Resistant Timing Belt Pulleys
Pulleys are anodized aluminum, which is more corrosion resistant than steel. They are XL series (extra light) and have trapezoidal teeth. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.
For tight spots, choose a pulley without a hub.
For technical drawings and 3-D models, click on a part number.
| OD, mm | Number of Teeth | Pitch, mm | For Shaft Dia., mm | Bore Type | Inside Wd., mm | Outside Wd., mm | Overall Wd., mm | Pitch Dia., mm | Fabrication | Material | Hub Dia., mm | Each | |
For 9.5 mm Max. Belt Wd. | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
With Hub—Two Flanges | |||||||||||||
| 35 | 18 | 5.080 | 8 | Finished | 11.2 | 14.2 | 20.6 | 29.1 | Machined | Anodized Aluminum | 21 | 00000000 | 000000 |
Without Hub—Two Flanges | |||||||||||||
| 35 | 18 | 5.080 | 8 | Finished | 10.9 | 14.3 | 14.3 | 29.1 | Machined | Anodized Aluminum | __ | 00000000 | 00000 |
XL Series Lightweight Timing Belt Pulleys
Acetal and aluminum construction makes these pulleys useful in weight-sensitive applications. All are XL series (extra light) and have trapezoidal teeth. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OD | Number of Teeth | Pitch | For Shaft Dia. | Bore Type | Inside Wd. | Outside Wd. | Overall Wd. | Pitch Dia. | Number of Flanges | Fabrication | Material | Material | Dia. | Each | |
For 3/8" Max. Belt Wd. | |||||||||||||||
Metric | |||||||||||||||
| 35mm | 18 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 29.11mm | 2 | Molded | Acetal | Aluminum | 19mm | 0000000 | 000000 |
Metal Worms and Worm Gears
Worm gears use screw threads to make large reductions to shaft speed while transmitting motion at a right angle. They transmit motion from worm to gear and cannot be reversed. For gears and worms to mesh correctly, they must have the same pressure angle and pitch/module. These worms are compatible with plastic worm gears.
Speed ratio is the ratio by which output shaft speed is reduced. As speed decreases, torque increases.
1045 carbon steel worms have rolled threads.
For technical drawings and 3-D models, click on a part number.
Hub | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Module | Pressure Angle | Worm Lg., mm | Gear Pitch Dia., mm | OD, mm | For Shaft Dia., mm | Number of Thread Starts | Dia., mm | Material | Thread Direction | Teeth Heat Treatment | Teeth Fabrication | Set Screw Included | Each | |
Round Bore—Black-Oxide 1045 Carbon Steel | ||||||||||||||
| 2 | 14 1/2° | 46 | 31 | 35 | 12 | 1 | 25 | 1045 Carbon Steel | Left Hand | Not Hardened | Not Ground | No | 000000000 | 000000 |
| 2 | 14 1/2° | 46 | 31 | 35 | 12 | 1 | 25 | 1045 Carbon Steel | Right Hand | Not Hardened | Not Ground | No | 000000000 | 00000 |
| 2 | 14 1/2° | 46 | 31 | 35 | 12 | 2 | 25 | 1045 Carbon Steel | Right Hand | Not Hardened | Not Ground | No | 000000000 | 00000 |