Calculating Transmission Ratio I

Calculating Transmission Ratio i

Example:






I = ZG2 : ZG1 1

iG = gear ratio = ZG2 : ZG1 = 29: 36 = 0.806

iA = axle ratio = ZA2 : ZA1 = 68: 26 = 2.615

itotal = total ratio = iG x iA = 0.806 x 2.615 = 2.108

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