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Torque Limiters for Chain and Belt Drives
Prevent damage from overloading. When overloaded, these limiters cause your sprocket or pulley to slip. Once the overload is removed, the limiters automatically reset. Set the torque within the range listed. Friction discs are between the hub and pressure plate.
Double-spring limiters have a second spring for handling nearly twice the torque of single-spring limiters.
Optional sprockets are designed specifically to fit their corresponding limiters. These hubless sprockets are not interchangeable.
For technical drawings and 3-D models, click on a part number.
Torque Limiters
Torque Limiter Shown with Optional Sprocket
Replacement Bushing
Replacement Friction Disc
Torque Limiters | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Keyway | Torque | Optional Sprockets | Replacement Friction Discs for Torque Limiters | Replacement Bushings for Optional Sprockets | |||||||||||||||
| For Shaft Dia. | OD | O'all Wd. | Wd. | Dp. | For Max. Sprocket or Pulley Wd. | Friction Disc Thick. | Min., ft.-lbs. | Max., ft.-lbs. | Hub Material | Each | For Roller Chain Trade Size | Each | Each | For Roller Chain Trade Size | Each | ||||
Single Spring | |||||||||||||||||||
| 1 1/8" | 4 1/2" | 2 7/8" | 1/4" | 1/8" | 7/8" | 1/8" | 18 | 190 | Steel | 00000000 | 0000000 | 0000000 | 000000 | 0000000 | 000000 | __ | 000000 | 00 | |
| 1 1/8" | 5" | 2 7/8" | 1/4" | 1/8" | 5/8" | 1/8" | 90 | 250 | Steel | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 | 000000 | 00000 | ||
Double Spring | |||||||||||||||||||
| 1 1/8" | 4 1/2" | 2 7/8" | 1/4" | 1/8" | 13/16" | 1/8" | 20 | 285 | Steel | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 | __ | 000000 | 00 | |
| 1 1/8" | 5" | 2 7/8" | 1/4" | 1/8" | 5/8" | 1/8" | 120 | 400 | Steel | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 | 000000 | 0000 | ||
Replacement Washers for Torque Limiters
| For OD | Each | |
| 5" | 00000000 | 000000 |