To prevent a machine shaft turning backwards the overruning clutch serves as a brake. Indexing clutch: turns a shaft step by step, thus achieving indexed material feed or a variable speed.
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Application backstops
- Static back torque
- Maximum dynamic reverse torque due to the elasticity of the locked parts (e.g. belt conveyor pump station/drive
- Range of overrunning
- Number of load bearing within the lifetime
- Shaft diameter
Application overrunning clutches
- Type of drive motor
- Torque / nominal torque of electric motors
- In combustion engines, please consult
- Nominal torque
- Range of drive speed
- Mass moment of inertia "J" of the driven masses
- Range of overrunning
- Number of starting processes, based on the life time
- Shaft diameter



Application non return devices
- Number of circuits per minute
- Switching angle
- Static torque
- Mass moment of inertia "J" of the driven masses
- Maximum acceleration of the drive
- Number of shifts in relation to the life time
- Shaft diameter