Lead Screw Torque and Force Calculator
When designing machinery that uses lead screws, it's a common task to try and figure out the size of motor needed to drive a given force with a lead screw. This calculator will calculate torque given the lead screw parameters and the required force.
There are two torques the torque to raise the load and the torque to lower the load.
Once the torque is calculated an appropriate stepper can be selected.
Disclaimer - We don't guarantee the accuracy of this calculator.
Coefficient of friction for leadscrew threads
These equations come from the Wiki article on force.
Torque(raise) = F*Dm/2*(L+u*PI*DM)/(PI*Dm-u*L)
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Disclaimer: Daycounter, Inc. doesn't guarantee the accuracy of any of it's content. Use at your own risk.