Transmission Ratios i, Calculating

Transmission Ratios i, Calculating

Example:






I = ZG2 : ZG1 1

iG = gear ratio = ZG2 : ZG1 = 29 : 40 = 0.725

iA = axle ratio = ZA2 : ZA1 = 69 : 21 = 3.286

itotal = total ratio= iG x iA = 0.725 x 3.286 = 2.382

• 1 Z1 = number of teeth on the drive gear, Z2 = number of teeth on the driven gear