Servo Motor Selection Calculator

Calculate required torque, power, and inertia matching from load and motion parameters.

Workpiece Mass

Friction Coeff. μ

External Force F

Drive Type

Screw Lead

Screw Diameter

Screw Length

Efficiency η

Travel Distance

Accel Time

Constant Time

Decel Time

Motor Inertia J_M

kg·m²

Coupling Inertia J_C

kg·m²

Load Inertia J_L

- kg·m²

Inertia Ratio J_L/J_M

-×

Fast positioning: 3–5× | Slow: 5–8×

Max Linear Speed

- mm/s

Motor Speed
- RPM

Friction Torque T_f

- N·m

Accel Torque Ta
- N·m

Total Torque

- N·m

Required Power
- kW