one-way roller clutch / internal / without bearing function / backstop
FN series



  • Technology:


  • Construction:

    internal, without bearing function

  • Applications:

    backstop, indexing, overrunning clutch

  • Torque:

    Min.: 18 Nm (13.2761

    Max.: 3,000 Nm (2,212.6864

  • Diameter:

    Min.: 8 mm

    Max.: 60 mm

  • Rotational speed:

    Min.: 800 rpm (5,026.55 rad.min-1)

    Max.: 5,400 rpm (33,929.2 rad.min-1)


Ringspann's FN series is a line of internal freewheels designed for keyway connection on outer rings. It offers an efficient solution with its compact size and space-saving construction.

The unit is mainly used as backstops, overrunning clutches, and indexing freewheels. It features a nominal torque range of 18 Nm to 3 000 Nm. The series comes in different bore sizes that ranges from 8mm to 60mm.

Other RINGSPANN products