Freewheel  Manufacturers, Traders, Suppliers

Free wheels and single-direction joints in which the drive element pulls the towed element when it rotates in one direction, but that automatically detaches itself when it rotates in the opposite direction. Due to this specific feature the free wheels are used for the following applications:
OVERRUNNING CLUTCH
A free wheel used as overrunning clutch disengages automatically when the driven part rotates faster than the driving part.
Roller type free wheels, when used for overrunning clutch applications must be positioned in such a way that, in the overspeed range, the internal free wheel component is stationary or rotates slowly and the external component overspeeds. This layout ensures a higher number of overspeed rotations, reduces wear and overheating and increases the life of the overrunning clutch free wheel.
BACKSTOP
If the freewheels are used for backstop applications, the number of overspeed rotations can normally only be performed by the internal component. In this case, the maximum number of overspeed rotations shown in the following pages must be adhered to and, to ensure good lubrication, a low viscosity oil should be used, preferably oil circulation lubrication.
Backstop allows the rotation in only one direction. During the work the backstop works continuously free. The backstop prevents reverse rotation if the drive is disconnected
INTERMITTENT FEED
When used for intermittent feed applications, the intermittent feed will be performed by the external component, whilst transmission will be performed by the inner race. One freewheel is already a complete intermittent feed unit but, in this case, only an interrupted rotating movement from the transmission is possible, during which the feed periods are exactly the same as the stationary periods (idling during the return movement). By using two or more freewheels with alternating operation (i.e. by means of cams), a continuous rotation transmission movement will be achieved, although slightly uneven.