• A one-way clutch is a clutch mechanism that transmits power in only one direction, and GMN uses a sprag-type mechanism.

Idle direction Power transmission direction

• The friction force generated when the uniquely designed sprag is upright around the entire circumference controls the direction of rotation. Since a static friction force is generated around the entire circumference, both high torque and space saving are achieved.

The slight rotation of the tilt angle of δ minutes makes the splug stand upright.

• There are two types of spring structures that fix the splugs, Z type and M type, and use the M type for applications where the angular frequency (angular frequency) is greater than 10 Hz.

You can choose the best clutch from a variety of designs + options.

with seals
Components
Freewheel clutch
insert element* FE 400 M (meander spring)
FE 400 Z (tension spring)
+ Raceways
inner ring
outer ring
+ Ball bearing
Bearing steel, hardened and ground
Press fit
Press fit
+ Roller bearing RL 400
Integrated
+ Lubrication
+ Seal
Lifetime oil lubrication
GMN rubber seal
* available with either freewheel clutch insert element
FE 400 M (meander spring) or FE 400 Z (tension spring).
.
26
Characteristics
Width
34 mm
Operating temperature
max. 100° C
Lubrication
Operative lifetime oil lubrication
Installation
Installation tolerances
Shaft h5; hub H6
Mating parts
Hardening and grinding of the mating parts is 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.
Bearing
The freewheel clutch includes ball and roller bearings.
Additional external bearing support is not necessary.
Press fit pressure
Press fit pressure must not be applied to the balls.
Clamping direction
The arrow on the inner ring designates the inner ring’s clamping
direction.

FPD 400 Z/M (with ball bearings, roller bearings, lubrication and seals/press-fit)

• Specifications ◯
  Mounting dimensions: 34 mm (axial)
  ◯ Shaft diameter: 15~60 mm
  ◯ Heat resistance: up to 100°C
• Recommended Finish Tolerance
  ◯ Axis: h5
  ◯ Housing: H6

FPD 400 Z/M Type Model List

Model No.	d [mm]	D [mm]	W [mm]	Tnom [Nm]	nmax [min-1]	Cdyn. [N]	Cstat. [N]	Weight [kg]
FPD 427 M	15	31	34	94	2,000	7,679	6,397	0.09
FPD 427 Z	15	31	34	84	2,000	7,679	6,397	0.09
FPD 432 M	20	36	34	133	1,800	8,104	7,241	0.12
FPD 432 Z	20	36	34	121	1,800	8,104	7,241	0.12
FPD 437 M	25	41	34	176	1,700	9,201	8,142	0.15
FPD 437 Z	25	41	34	160	1,700	9,201	8,142	0.15
FPD 442 M	30	46	34	223	1,500	10,247	10,708	0.18
FPD 442 Z	30	46	34	208	1,500	10,247	10,708	0.18
FPD 448 M	35	53	34	286	1,300	11,642	13,440	0.23
FPD 448 Z	35	53	34	262	1,300	11,642	13,440	0.23
FPD 453 M	40	58	34	343	1,200	11,417	13,577	0.26
FPD 453 Z	40	58	34	314	1,200	11,417	13,577	0.26
FPD 463 M	50	68	34	461	1,100	13,070	17,063	0.34
FPD 463 Z	50	68	34	428	1,100	13,070	17,063	0.34
FPD 473 M	60	78	34	588	1,000	14,128	19,896	0.41
FPD 473 Z	60	78	34	543	1,000	14,128	19,896	0.41

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