Frictional shaft-hub-connections are standard machine elements used to connect shafts and hubs. They are capable of transmitting torque, axial forces, radial forces and bending moments.

Freewheels are machine elements with particular characteristics:

  • In one direction of rotation there is no contact between the inner and outer ring; the freewheel is in freewheeling operation.
  • In the other direction of rotation there is contact between the inner and outer ring; in this direction it is possible to transmit high torque.

Are used as backstops, overrunning clutches and indexing freewheels. Freewheels can fulfil these functions completely automatically in the most diverse machines. No mechanical or hydraulic operating equipment is required, as for example with external actuated clutches or brakes.

With more than 50 years’ experience in the development, production and sales of freewheels, RINGSPANN offers the most comprehensive range of freewheels.

The freewheel as an automatic driving element is preferred to conventional solutions because it offers the following significant benefits:

  • Operating safety
  • Efficiency
  • A higher degree of automation


Areas of application for Backstops:

  • Gear units
  • Electric motors
  • Gear motors
  • Inclined conveyors
  • Elevators
  • Bucket elevators
  • Pumps
  • Compressors

Overrunning Clutch

Areas of application for Overrunning Clutches:

  • Textile machines
  • Printing machines
  • Fans
  • Ventilators
  • Pumps
  • Generators
  • Roller conveyor

Indexing Freewheels

Areas of application for Indexing Freewheels:

  • Textile machines
  • Printing machines
  • Packaging machines
  • Filling plants
  • High voltage switches

Ringspan freewheels casestudy

Contact us for more information.


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