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© 2026 Mechanical Engineering Academy. Educational use only. Not a substitute for site procedures, manufacturer data, or approved engineering calculations.

Rotating shaft: power from torque and speed

Model version 1.0.0. Valid range: 0–2000 N·m, 0–6000 rpm

Animation speed is scaled for legibility (maximum 1.5 rev/s).

Shaft torque (T)N·m

Rotational speed (n)rpm

Angular speed: 157 rad/s
Mechanical power: 15.7 kW
Mechanical power: 21.1 hp

About this model (calculated · v1.0.0)

P = T\,\omega

\omega = \dfrac{2\pi n}{60}

Valid range: 0–2000 N·m, 0–6000 rpm

Assumptions

Steady rotation at constant speed.
Torque is the net torque transmitted by the shaft.
1 hp = 745.6999 W (mechanical horsepower).

Limitations

No efficiency, inertia, or transient behaviour.
Not a motor or gearbox selection tool.

This is an educational model. It is not verified for engineering design.