integration one-way clutch / external / without bearing function / with internal bearings
FON series



  • Construction:

    for integration, external, without bearing function, with internal bearings

  • Applications:

    backstop, indexing, overrunning clutch

  • Torque:

    Max.: 25,000 Nm (18,439.0537

    Min.: 220 Nm (162.2637

  • Diameter:

    Max.: 155 mm

    Min.: 20 mm

  • Rotational speed:

    Max.: 2,600 rpm (16,336.28 rad.min-1)

    Min.: 630 rpm (3,958.41 rad.min-1)


for bolting to the face
with sprags, available in three types


Integrated Freewheels FON are sprag freewheels without bearing support.
The freewheels FON are used as:
- Backstops
- Overrunning Clutches
- Indexing Freewheels

In addition to the standard type, two other types are available for extended service life and indexing accuracy.

Nominal torques up to 25 000 Nm.
Bores up to 155 mm.
A multitude of ­standard­ized bore diameters are available with short delivery times.

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