GMN complete freewheel clutch units are particularly suited for high torque requirements. The FPD, FND, RA, FP and FN series are characterized by an integrated ball bearing and an additional roller bearing (fixed and floating bearing) and are also optionally available pre-lubricated with sealing rings. All GMN complete freewheel clutch units can be used as indexing clutches, backstops or as overrunning clutches.
The freewheel clutches in the FPD series are complete freewheel clutch units sealed on both sides and have a press fit connection.
FE 400 M (meander spring) / FE 400 Z (tension spring)
Bearing steel, hardened and ground
Press fit
Press fit
integrated
RL 400
Lifetime oil lubrication
GMN rubber seal
* Available with either freewheel clutch insert element FE 400 M (meander spring) or FE 400 Z (tension spring).
The freewheel clutches in the FND series are complete freewheel clutch units sealed on both sides with a keyway connection at the inner ring and a press fit connection on the outer ring.
FE 400 M (meander spring) / FE 400 Z (tension spring)
Bearing steel, hardened and ground
Keyway per DIN 6885, Sheet 1, Tolerance: P9 with back clearance
Press fit
integrated
RL 400
Lifetime oil lubrication
GMN rubber seal
* Available with either freewheel clutch insert element FE 400 M (meander spring) or FE 400 Z (tension spring).
The freewheel clutches in the FP series are not sealed and have a press fit connection.
FE 400 M (meander spring) / FE 400 Z (tension spring)
Bearing steel, hardened and ground
Press fit
Press fit
integrated
RL 400
—
—
* Available with either freewheel clutch insert element FE 400 M (meander spring) or FE 400 Z (tension spring).
The freewheel clutches in the FN series are not sealed and have a keyway connection at the inner ring and a press fit connection on the outer ring.
![FP_Detail_fn453z[1]](https://www.gmn.de/wp-content/uploads/FP_Detail_fn453z1.jpg)
FE 400 M (meander spring) / FE 400 Z (tension spring)
Bearing steel, hardened and ground
Keyway per DIN 6885, Sheet 1, Tolerance: P9 with back clearance
Press fit
integrated
RL 400
—
—
* Available with either freewheel clutch insert element FE 400 M (meander spring) or FE 400 Z (tension spring).
The freewheel clutches in the RA series are complete units sealed on both sides with a keyway connection at the inner ring and a mounting tab.
Complete freewheel clutch unit, series FND insert element FE 400 Z (tension spring)
Bearing steel, hardened and ground
Keyway per DIN 6885, Sheet 1, Tolerance P9 with back clearance
with mounting tab (cast steel or steel)*
integrated
RL 400
Lifetime oil lubrication
GMN rubber seal
* Not suitable for indexing freewheel clutch applications.
Shaft h5; hub H6
Hardening and grinding of the mating parts are not necessary. Thoroughly clean (grease free) the mating parts in the vicinity of the freewheel clutch as well as the freewheel clutch’s rings before making the press fit.
The freewheel clutch includes ball and roller bearings. Additional external bearing support is not necessary.
Press fit pressure must not be applied to the balls.
The arrow on the inner ring designates the inner ring’s clamping direction.
Shaft js6 (k5)
Hardening and grinding of the mating parts are not necessary. Thoroughly clean (grease free) the mating parts in the vicinity of the freewheel clutch as well as the freewheel clutch’s rings before making the press fit.
The freewheel clutch includes ball and roller bearings. Additional external bearing support is not necessary.
Press fit pressure must not be applied to the balls. Installation/removal through inner ring only.
The arrow on the inner ring designates the inner ring’s clamping direction.
Mounting tab must not be fixed to the housing tight.
