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



  • Technology:


  • Construction:

    internal, without bearing function

  • Applications:

    backstop, indexing, overrunning clutch

  • Torque:

    Max.: 3,000 Nm (2,212.6864

    Min.: 11 Nm (8.1132

  • Diameter:

    Max.: 80 mm

    Min.: 8 mm

  • Rotational speed:

    Max.: 4,700 rpm (29,530.97 rad.min-1)

    Min.: 500 rpm (3,141.59 rad.min-1)


The FBO series is bearing-supported basic freewheel that is specially designed for keyway connection on the outer ring. Equipped with roller, this freewheel is built within a compact housing making it ideal for space-saving solutions. It is commonly used in a wide array of applications that include backstops, overrunning clutches as well as indexing freewheels. The FBO series is capable of generating a nominal torque capacity of 3000 Nm.

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