Transmission ratio

Input speed

rpm

Input torque

N·m

Ratio i = n₁ / n₂

—

Efficiency

Output speed

150 rpm

Output torque

73.6 N·m

Schematic transmission · efficiency 92% · no gear geometry

Formula & assumptions +

n₂ = n₁ / i · T₂ = T₁ · i · η

i = n₁/n₂. i > 1 is a reduction. η = efficiency/100. Constant efficiency, energy flow from input to output. No peak load or back-driving.