Gearhead / Reduction

Select reduction ratio, check output torque and inertia matching.

Reduction ratio i

Motor torque (N.m)

Motor speed (rpm)

Gearhead rated torque (N.m)

Gearhead inertia (kg.m2)

Motor rotor inertia (kg.m2)

Reflected load inertia (kg.m2)

T_out = T_in · i · η   (η≈0.95 assumed)
N_out = N_in / i
i_rec ≈ √(JL / JM)      (inertia matching)

Recommended ratio brings reflected inertia near motor rotor inertia.