Made in Japan Manufacturer: Fukuda Seiko Model: FR 437 M
Developed by GMN, which has been dealing with machine component parts for more than 100 years, this is a lightweight, space-saving, and high-torque one-way clutch. A mechanism of the ring fastening part called a sprag controls the direction of rotation.
use
Printing Machinery
Conveyor
E-bikes (electrically power assisted bicycles)
Compressor
winch
Generators
Emergency power supply equipment and fire doors
Wheelchair
Features
Suggestions for backstops, indexes, and overrunning
Space-saving and high torque
High-speed swivel motion
High-precision positioning
Minimal moment of inertia
Uniform load distribution due to individual sprag movements
High design freedom with various options: with inner and outer rings , with axle reception, with keyway, with lubrication and seals
summary
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.
Series: FR Components: Insert element FE 400 Z / FE 400 M + Raceway rings Inner ring press fit Outer ring press fit Lubrication: Oil or grease Width: 12 mm Operating temperature: max. 140°C Higher temp. on request
FR 400 Z/M type (with inner and outer rings/press-fit)
Specifications ◯ Mounting dimension: 12 mm (axial) ◯ Shaft diameter: 10~60 mm ◯ Heat resistance: up to 140°C ◯ Lubrication: oil or grease
Characteristics Width 12 mm Operating temperature max. 140°C Higher temperatures on request Lubrication Oil or grease lubrication (Pg. 60–61) Delivered with corrosion protection. Operative grease filling on request. Installation Installation tolerances Shaft h5; hub H6 Constraints The freewheel clutch insert element requires axial constraints on both sides. 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 Freewheel clutch insert elements are not self-centering. External bearing support to define the gap between mating parts (inner and outer rings) is necessary.
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 — Lubrication – Seal — * available with either freewheel clutch insert element FE 400 M (meander spring) or FE 400 Z (tension spring)
FR 400 Z/M Type Model List
Model No.
d [mm]
D [mm]
W [mm]
Tnom [Nm]
nmax [min-1]
Weight [kg]
FR 422 M
10
26
12
60
10,100
0.03
FR 422 Z
10
26
12
53
10,100
0.03
FR 427 M
15
31
12
92
7,400
0.04
FR 427 Z
15
31
12
83
7,400
0.04
FR 432 M
20
36
12
128
5,900
0.05
FR 432 Z
20
36
12
117
5,900
0.05
FR 437 M
25
41
12
169
4,800
0.06
FR 437 Z
25
41
12
154
4,800
0.06
FR 442 M
30
46
12
212
4,200
0.07
FR 442 Z
30
46
12
198
4,200
0.07
FR 448 M
35
53
12
272
4,300
0.09
FR 448 Z
35
53
12
248
4,300
0.09
FR 453 M
40
58
12
321
3,400
0.10
FR 453 Z
40
58
12
294
3,400
0.10
FR 463 M
50
68
12
427
2,900
0.12
FR 463 Z
50
68
12
394
2,900
0.12
FR 473 M
60
78
12
539
2,500
0.14
FR 473 Z
60
78
12
496
2,500
0.14
The specified nominal torque is based on sufficient stiffness of mating parts (Pg. 22). Rotation speed n = insert element’s inherent speed
