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2. Freewheel - Wikipedia

   en.wikipedia.org/wiki/Freewheel

   Freewheel mechanism Ratcheting freewheel mechanism (van Anden, 1869). In mechanical or automotive engineering, a freewheel or overrunning clutch is a device in a transmission that disengages the driveshaft from the driven shaft when the driven shaft rotates faster than the driveshaft.

3. Sprag clutch - Wikipedia

   en.wikipedia.org/wiki/Sprag_clutch

   A sprag clutch is a one-way freewheel clutch. It resembles a roller bearing but, instead of cylindrical rollers, non-revolving asymmetric figure-eight shaped sprags, or other elements allowing single direction rotation, are used. When the unit rotates in one direction the rollers slip or free-wheel, but when a torque is applied in the opposite ...

4. Slipper clutch - Wikipedia

   en.wikipedia.org/wiki/Slipper_clutch

   A slipper clutch (also known as a back-torque limiter) is a specialized clutch with an integrated freewheel mechanism, developed for performance-oriented motorcycles to mitigate the effects of engine braking when riders decelerate.

5. Motorcycle transmission - Wikipedia

   en.wikipedia.org/wiki/Motorcycle_transmission

   A lever on the handlebar exploits mechanical advantage through a cable or hydraulic arrangement to release the clutch spring(s), allowing the engine to freewheel with respect to the transmission. Automatic and semi-automatic transmissions typically use a centrifugal clutch which operates in a different fashion. At idle, the engine is ...

6. Semi-automatic transmission - Wikipedia

   en.wikipedia.org/wiki/Semi-automatic_transmission

   An early example of a semi-automatic motorcycle transmission was the use of an automatic centrifugal clutch in the early 1960s by the Czechoslovakian manufacturer Jawa Moto. [83] Their design was used without permission in the 1965 Honda Cub 50 , which resulted in Jawa suing Honda for patent infringement and Honda agreeing to pay royalties for ...

7. Clutch - Wikipedia

   en.wikipedia.org/wiki/Clutch

   This is an accepted version of this page This is the latest accepted revision, reviewed on 1 October 2024. Mechanical device that connects and disconnects two rotating shafts or other moving parts For other uses, see Clutch (disambiguation). Friction disk for a dry clutch A clutch is a mechanical device that allows an output shaft to be disconnected from a rotating input shaft. The clutch's ...