one-way roller clutch / full-face / with internal bearings / backstop
FGR … R A3A4 series



  • Technology:


  • Construction:

    full-face, with internal bearings

  • Applications:


  • Torque:

    Min.: 55 Nm (40.5659

    Max.: 68,000 Nm (50,154.2262

  • Diameter:

    Min.: 12 mm

    Max.: 150 mm

  • Rotational speed:

    Min.: 200 rpm (1,256.64 rad.min-1)

    Max.: 2,500 rpm (15,707.96 rad.min-1)


with lever arm
with rollers


Complete Freewheel FGR R A3A4 with lever arm are sealed roller freewheels with ball bearings. They are oil lubricated.
The freewheels FGR R A3A4 have an end cover and are fitted to shaft ends.
The oil filling is carried out after the freewheel has been installed.

Nominal torques up to 68 000 Nm.
Bores up to 150 mm.

Application as
- Backstop for applications with low to medium speeds in freewheeling operation.

Other RINGSPANN products