Calculating Transmission Ratio I

Calculating Transmission Ratio i

Example:






i = ZG2 : ZG1 1

iG = gear ratio = ZG2 : ZG1 = 35 : 43 = 0.814

iA = axle ratio = ZG2 : ZG1 = 69 : 25 = 2.760

itotal = total ratio= iG x iA = 0.814 x 2.760 = 2.247

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