full-face one-way clutch / with internal bearings / backstop
FB series



  • Construction:

    full-face, with internal bearings

  • Applications:


  • Torque:

    Max.: 160,000 Nm (118,009.9439 ft.lb)

    Min.: 45 Nm (33.1903 ft.lb)

  • Diameter:

    Max.: 300 mm

    Min.: 12 mm

  • Rotational speed:

    Max.: 5,500 rpm (34,557.52 rad.min-1)

    Min.: 400 rpm (2,513.27 rad.min-1)


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


Complete Freewheels FB are sealed sprag freewheels with ball bearings. They are supplied oil-filled and ready for installation.
In addition to the standard type, three other types are available for extended service life.

Nominal torques up to 160 000 Nm.
Bores up to 300 mm. A multitude of ­standard­ized bore diameters are available with short delivery times.

Application as:
- Backstop
- Overrunning Clutch
- Indexing Freewheel

Other RINGSPANN products