Calculate the thrust force of a lead-screw based linear actuator.
Actuator Physics
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Thrust Results
Enter torque and screw details to calculate thrust
About this calculator
Quick Reference
FLinear Thrust Factor
TInput Torque
LLead (Screw Travel per Rev)
ηEfficiency Factor
Overview
Linear actuators convert rotational motion (from a motor) into linear motion. For lead-screw actuators, the thrust force produced depends on the motor torque, the pitch (lead) of the screw, and the frictional losses (efficiency).
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Pro Tips
Ball screws usually have higher efficiency (85-95%) than Acme screws (30-70%).
Thrust Force F = (T * 2 * π * η) / L.
Always ensure your units are consistent (e.g., use SI for the formula).
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Fun Facts
"Wait, did you know that the simple screw is actually an 'inclined plane' wrapped around a cylinder? That's why it's so good at multiplying force!"
"Linear actuators are used everywhere from the wing flaps of jumbo jets to the adjustable desks in modern offices."
"Static force (holding) is usually much higher than dynamic force (moving) for most actuators."
