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Transmission layout > < Code letters, allocation, transmission ratios, capacities

A3 Mk1

Calculating ratio “i”
Calculating ratio “i”
   
Example:5th gearFinal drive
Drive gearZG1 = 36ZA1 = 16
Driven gearZG2 = 43ZA2 = 63

   
i=Z2 : Z1 (Z1 = number of teeth on drive gear, Z2 = number of teeth on driven gear)
iG=Gear ratio = ZG2 : ZG1 = 36 : 43 = 0.837
iA=Axle ratio = ZA2 : ZA1 = 63 : 16 = 3.938
iov=Overall ratio = iG x iA = 0.837 x 3.938 = 3.297

   

Transmission layout > < Code letters, allocation, transmission ratios, capacities