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Notes on performance test > < Overview - power transmission
Calculation of gear ratios
Calculation of gear ratios
Example:
   
 6th gearFinal drive
Drive gearZG1 = 33ZA1 = 27
Driven gearZG2 = 32ZA2 = 79

i= Z2 : Z1 → Note
iG = Gear ratio = ZG2 : ZG1 = 32 : 33 = 0.970
iA = Final drive ratio = ZA2 : ZA1 = 79 : 27 = 2.926
itotal = Overall ratio = iG x iA = 0.970 x 2.926 = 2.838
1)  Z1 = No. of teeth on driving gear, Z2 = No. of teeth on driven gear
   

Notes on performance test > < Overview - power transmission