Electric Motor Driving Speed Reduction Torque Equation and Calculator

Use this equation and calculator to determine the torque and force to drive gears, belt, or chain mechanical systems.

Equation:

Chain mechanical system torque formula

and

Chain mechanical system mass moment of inertia

Where:

T =	Required Torque, lb-ft
=	Reflected inertia, lb-ft²
=	Load inertia, lb-ft²
=	Reduction ratio
=	Change of speed, rpm
t =	Time to accelerate the load, seconds
=	Change speed of shaft, rpm