Power Transmission Efficiency Calculator

Calculate overall drivetrain efficiency from individual component efficiencies in series power transmission.

Power at the prime mover output.
kW
Flexible coupling: 0.99, Fluid: 0.95-0.98.
Single stage spur: 0.98, Worm: 0.50-0.90.
V-belt: 0.95, Timing belt: 0.98, Chain: 0.97.
Rolling element: 0.99, Plain: 0.98 per pair.
Bearing support locations.

Results

Overall Efficiency-%
Output Power-kW
Power Loss-kW
Heat Generation-kW
References: Shigley's — Power Transmission; SKF Bearing Handbook