Centrifugal clutch

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A centrifugal clutch is a clutch that engages automatically when its rotational velocity exceeds a certain limit, typically by weights pushed against springs by centrifugal force generated by the rotation.

Centrifugal clutches are often used in mopeds, underbones, lawnmowers, battlebots, go-karts, chainsaws and mini bikes to:

  • keep the internal combustion engine from stalling when the blade or weapon is stopped abruptly
  • provide low load during starting
  • allow engine to idle

The centrifugal clutch was invented by Thomas Fogarty, who also invented the balloon catheter.

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