Direct Drive Rotary - Motion Calculator -

Direct-Drive Rotary → Motor Requirements

Live calculator • aligned fields • lead submit

Move angle

deg

Accel time

Traverse time

Decel time

Total load inertia

lbm·in²

Optional: Motor inertia

lbm·in²

Friction/drag torque

in·lbf

Unbalanced weight

lbf

Offset radius

Efficiency (misc.)

Your name

Your email

Company

Notes / application

Peak motor speed

—

Peak acceleration

—

deg/s²

Acceleration torque

—

Traverse (steady) torque

—

RMS torque (cycle)

—

Peak mechanical power

—

W (est.)

Load inertia

—

lbm·in²

Inertia ratio (load : motor)

—

enter motor J

Torque = J·α + T_fric + T_imbalance. Trapezoidal profile; efficiency scales torque. Peak power uses steady torque at peak speed.