Lead Screw Calculator — Torque, Efficiency & Mechanical Advantage
Calculate required torque, mechanical advantage, and power for Acme and ball screw drives. Essential for 3D printer, CNC, and linear actuator design.
✓ Formula verified: May 2026
Lead Screw
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Required Torque
1.5915 N·m
Torque with SF 1.5×
2.3873 N·m
Mechanical Advantage
314.1593 : 1
Power at 1 rev/sec
10 W
Formula Used
T = (F × p) / (2π × η)
What if your axial load (f) changes? 450 N → 1.4324 N·m · 500 N → 1.5915 N·m · 550 N → 1.7507 N·m
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