P = T · ω
Torque, power & speed
Calculate one unknown from two values, with explicit units.
Torque, power & speed
Available torque
4.775 N·m
Next design step
Use the calculated steady-state shaft torque as input for a first torsion check. There, choose a justified allowable shear stress for the material and application. The shaft tool does not check bending, fatigue, keyways or peak load.
Motor sizing opens without transferred values: it needs mass, linear speed and drum diameter; P, n and T alone do not determine a motor selection.
Formula & assumptions +
P = T · 2πn / 60000P in kW, T in N·m, n in rpm. Steady-state mechanical shaft power; no electrical input power, acceleration or motor selection.