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Linear actuators - Converting torque to push force

  1. Jun 23, 2011 #1
    All-

    I want to design a linear actuator that generates 200 lbs of force at the nut. I'll use an acme rod (roughly 30% efficient) or ballscrew (roughly 80% efficient) coupled to a gearmotor. How do I solve for the required torque of my gearmotor? I'm assuming that screw helix angle is a factor; my acme rod would be something 16TPI and my ballscrew would be more like 8TPI... I suspect that the diameter of the screw is irrelevant, though.

    Can someone walk me through this?

    thanks,
    Spencer
     
  2. jcsd
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