Gear Drive Motor Mass Moment of Inertia Equation

Gear Drive Motor Mass Moment of Inertia Equation:

Use these equations and calculator to determine the Inertia of a gear drive system. For any change in rotation speed, the load inertia will reflect back through the gears to the motor. Gear Drive System

Equation:

Motor Speed or Motor Torque:  Total Inertia realized at Motor: Where:

 Sm = Motor Speed, rpm Sl = Load Speed, rpm Nl = Number teeth on load gear Nm = Number teeth on motor gear N = Gear Ratio Tm = Torque of Motor, lb-in Tl = Torque of Load, lb-in e = Efficiency Jl = Load Inertia, lb-in.-sec2 Jm = Drive Motor Inertia, lb-in.-sec2 Jr = Reflected Load inertia, lb-in.-sec2 Jt = Total Inertia, lb-in.-sec2   Membership Register | Login   Home Engineering Book Store Engineering Forum Excel App. Downloads Online Books & Manuals Engineering News Engineering Videos Engineering Calculators Engineering Toolbox GD&T Training Geometric Dimensioning Tolerancing DFM DFA Training Training Online Engineering Advertising Center Copyright Notice 