Gear Ratio Calculation

Gear Ratio Calculation

Example:






i = ZG2:ZG1 *

iG = gear ratio = ZG2:ZG1 = 33:46 = 0.717

iA = axle ratio = ZA2:ZA1 = 70:24 = 2.917

itotal = total ratio = iG x iA = 0.717 x 2.917 = 2.091

• * Z1 = Number of teeth on the drive gear, Z2 = Number of teeth on the driven gear