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Basic types

Sprag type freewheel clutches
  • Distribution of forces due to friction locking
  • More sprags at the circumference
    → increased torque capacity
  • Less movement (angle of twist) for picking up torque
    → less indexing delay
    → higher indexing accuracy
  • Can be used as an insert element as well as complete solution alternatively
  • Higher indexing frequency (up to 100 Hz)
  • Higher rotation speed
Rollerramp clutches
  • Distribution of forces due to friction locking
  • Robust type for rough applications
  • There are less rollers arranged at the circumference
  • Higher angle of twist to pick up torque
  • Available only as complete solution - no insert elements

 

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Freewheel clutches

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Freewheel clutches

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Movie: Freewheel clutches

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You will see an
application of a
GMN Freewheel clutch.

Stringbike

The company Stringbike enters the market with a revolutionary new drive system - provided with GMN-freewheel-clutches.

stingbike_weiß