Free wheel one way clutch is mechanical device having special charectristics:
Indexing function allows the conversion of reciprocating motion applied to the driving race of the clutch into unidirectional intermittent (rotational) motion of the driven race. Used for Packaging Machines and steel sheet in presses. The intermittent movement can also be used for obtaining slow rotational speeds for products such as inking rollers. In this application the clutch is often called "Indexing / Feeding" clutch.
Clutch disengages automatically when the driven member rotates faster than the driving member. The Highest Overrunning speed is possible if Outer race Overruns, This ensures the best performance, reduce heat generation & wear which leads to increase freewheel life.
Overrunning function allows during drive of any race in any one direction of rotation, the other race drive faster than the same race, in the same direction of rotation OR keep continue to rotate, if the input drive is stopped. The input drive can be reversed; if there will be no drive to the output. Overrunning occurs when two or more motors can be used to drive the same machine, including through the same shaft. The overrunning function allows the secondary drive to remain stationary during faster speed operation.
Backstopping function prevents reverse rotation when input drive is discontinued or power supply failure to input drive (otherwise would cause damage to the equipment / machinery). This function simply achieved by anchoring one race of the clutch so that the other race is free to rotate in one (required) direction but is immediately locked in reverse direction. Normally, outer race or outer race flange or torque arm of the roller clutch is fixed to the stationary part - equipment frame and inner race fitted on to the drive shaft- rotating freely.