Gear Reducing Formulas
Output torque, speed and horsepower with gears.
Gear Reducing Formulas
Calculate output torque, speed, and horsepower for gear transmissions using the formulas below.
Formulas
Gear Output Torque: Mo = Mi × r × μ
Gear Output Speed: So = Si / r
Gear Output Horsepower: Po = Pi × μ
Where:
- Mo = output torque (Nm)
- Mi = input torque (Nm)
- r = gear transmission ratio
- μ = gear efficiency
- So = output speed (rpm)
- Si = input speed (rpm)
- Po = output horsepower (W, hp)
- Pi = input horsepower (W, hp)