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Search / Request - Freewheel clutches

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Type of operation
Type of operation

The GMN meander spring (suffix "M") allows an indexing frequency of up to 60 Hz and is therefore particularly suitable for use as an indexing clutch. The GMN tension spring (suffix "Z") has a lower spring force, which results in a longer service life when used as a backstop.

Are there hardened and ground mating parts made of steel?
Mating parts

Freewheel insert elements (type FE) generally require mating parts (shaft and hub) made of hardened and ground steel for torque transmission. Freewheel clutches with raceways are generally suitable.

Is bearing support with integrated bearings required?
Bearing support

Freewheels generally need bearing support. They are not self-centering.
If a bearing which defines the gap between the mating parts is already available, FE or FR type insert elements elements can be used.
If no bearing is available, GMN ball bearing clutches series FK(N)(N), or GMN complete unit series FP(D) and FN(D) with an integrated bearing are an outstanding solution.

Shaft-hub joint
Shaft-hub joint

Press-fit or keyed joints are available for all freewheel clutches with rings. We generally recommend a press-fit connection for perfect torque transmission.

Internal lifetime lubrication required?
Only suitable to 110 °C.
Permanent lubrication

Freewheel clutches must generally be lubricated with a suitable lubricant. Sealed GMN ball bearing clutches (series FK(N)(N) 2RS) are equipped with permanent grease lubrication. Sealed GMN complete units (FPD and FND series) have lifetime oil filling.

Max. operating temperature
Not suitable for seals.
Not suitable for seals.
Not suitable for seals. Only possible with a steel cage.
Operating temperature

GMN Freewheel clutches can be used up to 110°C.
A max. of 160°C is allowed for open designs.

Be careful with types offered with plastic cages:
The FE 422 Z, FE 423 Z, FE 432 Z and FE 453 Z series, as well as all GMN complete units which contain these installed items as components, as well as all GMN ball bearing clutches have a plastic cage as standard, which can be used at up to a maximum of 140°C.

Dimensions and parameters
Dimensions and parameters

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Search results - Freewheel Clutches

Description
(Item no.)
Width
W
[mm]
Shaft diameter
d
[mm]
Outer diameter
D
[mm]
Torque
Tn
[Nm]
Sprag
nk
[Stück]
Speed
nmax
[min-1]
Max. speed oil
nOil
[min-1]
Max. speed grease
nGrease
[min-1]
Ball load capacity
Cdyn
[N]
Ball load capacity
Cstat
[N]
Roller load capacity
Cdyn
[N]
Roller load capacity
Cstat
[N]
Spring system
 
 
Edge radius
rk
[mm]
Max. temperature
T
[°C]
Weight
 
[kg]
Inner groove width
wi
[mm]
Inner groove depth
ti
[mm]
Outer groove width
wa
[mm]
Outer groove depth
ta
[mm]
Supporting lever length
FH
[mm]
WH
[mm]
Mounintg tab thickness
AH
[mm]
Mounintg tab bore
CH
[mm]
Hold distance
EH
[mm]
Remark
 
 
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Comparison - Freewheel clutches

Description
 
 
Width
W
[mm]
Shaft diameter
d
[mm]
Outer diameter
D
[mm]
Torque
Mn
[Nm]
Sprag
nk
[Stück]
Speed
nmax
[min-1]
Max. speed oil
nOil
[min-1]
Max. speed grease
nGrease
[min-1]
Ball load capacity
Cdyn
[N]
Ball load capacity
Cstat
[N]
Roller load capacity
Cdyn
[N]
Roller load capacity
Cstat
[N]
Spring system
 
 
Edge radius
rK
[mm]
Max. temperature
T
[°C]
Weight
 
[kg]
Inner groove width
bi
[mm]
Inner groove depth
ti
[mm]
Outer groove width
ba
[mm]
Outer groove depth
ta
[mm]
Supporting lever length
FH
[mm]
Mounintg tab width
BH
[mm]
Mounintg tab thickness
AH
[mm]
Mounintg tab bore
CH
[mm]
Hold distance
EH
[mm]
Remark
 
 
Downloads
 
[.pdf,.step]
0
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Request - Freewheel clutches (1/2)

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Summary - Freewheel clutches (2/2)

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