GMN
GMN Freewheel Clutches
Sprag-type freewheel clutches for backstop, overrunning, and indexing functions.

Need GMN Freewheel Clutches?
Send a part number or nameplate photo. We respond within one business day.
Request a QuoteA freewheel transmits torque in one direction and overruns in the other. That simple behavior does three different jobs depending on how it is installed: backstop, overrunning clutch, or indexing drive.
As a backstop it prevents a conveyor or pump from reversing under load when the drive stops, which is a safety function as much as a mechanical one. As an overrunning clutch it lets a driven shaft coast faster than its drive. As an indexer it converts oscillating motion into stepped rotation.
Sizing follows the torque, the speed in the overrunning direction, and whether the unit is sprag or roller type. We source GMN freewheels against the designation.
Specifications
| Type | Sprag freewheel |
|---|---|
| Functions | Backstop, overrunning, indexing |
| Options | Wide feature selection |
Specifications are indicative and vary by model. We confirm exact specs on your quote.
Applications
- Backstops
- Overrunning drives
- Indexing
More From GMN

Non-Contact Seals
Non-contact labyrinth seals for high-speed shafts where contact seals would wear or overheat.
Details & quote
Spindle Bearings
Angular-contact and high-precision deep-groove ball bearings matched for machine-tool spindle speed and rigidity.
Details & quote
Spindles
GMN motor and grinding spindles for grinding, milling, dressing, and workpiece applications.
Details & quote