Belt Drive - Continuous

Load torque, motor torque and inertia ratio for continuous (constant-speed) belt transport.

Speed (m/min)

Belt + workpiece mass (kg)

Drum diameter (m)

Drum mass (kg)

Friction coefficient

Belt/roller efficiency

Reducer efficiency

Reduction ratio

External force (N)

Safety factor

Motor rotor inertia (kg.m2)

F = mL·g·μ + FA
T_L = F·(D/2) / (η·ηG)
J_L = (mL + 2·m2)·(D/2)²
T_M = T_L · S          (no accel torque at constant speed)

If inertia ratio > 5, use a reducer to improve matching.