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I'm designing a drill powered vehicle that needs to be able to drive uphill and downhill. The drive train roughly looks like this. The drill locks up when it's not running so I need something that will allow the shaft to freely spin when the power is off. I looked into centrifugal clutches but my drill doesn't produce high enough rpm for that to work.

Is there anything else that I could purchase or manufacture that would make this possible?

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yes, it is called a freewheel and most bicycle rear hubs have them, so you can coast without having to pedal the bike. in the mechanical engineering world, this is called an overrunning clutch.

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  • $\begingroup$ A good example is found in starter motors for cars... basically works with a ball bearing or roller and an inclined plane... $\endgroup$
    – Solar Mike
    Oct 24 '17 at 7:14
  • $\begingroup$ See also : 'sprag clutch'. $\endgroup$ Oct 24 '17 at 23:17

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