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.
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 backstopworks continuously free. The backstop prevents reverse rotation if the drive is disconnected.
Examples of fields in which
Gathering trailers with loading and unloading devices
Elevator conveyor belts
8.Electric motors – Gear motors
Protection against inverse rotation
Finished product extraction
Sewing machines, Stapling machines
12.Machines for working with meat
Helicopter rotor control
Slow rotation (for out of service cooling)
Compensation for the rotation difference (rpm) between the upper and lower roller
21.Cable cars and skilifts
23.Road cleaning machinery
Controls for sweeping rollers and vacuum
Turbine coupling devices
Diesel generators and motors
Starting joint control
Disengaging device during braking in direct current via the main engine.