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Topic: how do you compute for the Lead Screw Mechanism Motor (Read 52 times) previous topic - next topic


How do you compute for the torque/speed needed when using motor in a Lead Screw Mechanism?


If the pitch is d metres, and the angular velocity is w radians/s, then the linear velocity is (w * d)/(2 pi)

The you can use the power equations to deduce torque

power = v * F = w * T   
where v and F are linear velocity and force, w and T are angular velocity and torque, all in SI units (very

So given if you want 0.3m/s at 100N, that's 30 watts, and with a leadscrew of 10mm pitch
w = 2 pi * v / 0.01 = 188 rad/s = 1800 rpm.

You can also calculate rpm directly from linear velocity and pitch:   rpm = 60 * v / d
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