Calculating Transmission Ratio "i"

Calculating Transmission Ratio "i"

Example:





I = Z2 : Z1 *

IG = gear ratio = ZG2 : ZG1 = 31 : 41 = 0.756

IA = axle ratio = ZA2 : ZA1 = 70 : 21 = 3.333

Itotal = overall ratio

= iG x iA = 0.756 x 3.333 = 2,52

* Z1 = no. of teeth drive gear, Z2 = no. of teeth driven gear