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Gearbox reduction ratio
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Reduction ratio of 3 stage gearbox
No input data
Result
Three stage gearbox ratio
$$ i_{gb3} = {i_{gr1} . i_{gr2} . i_{gr3}} $$

Preceding calculations (1)  
Gear reduction ratio
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Number of teeth of first gear $$ z_1 = 21 \: $$ Number of teeth of second gear $$ z_2 = 45 \: $$
First stage ratio
$$ i_{gr1} = {z_2 \over z_1} $$

Calculation details   Show in calculation

This calculation is for 3 stage gearbox:

  • i_{gr1} - first stage reduction
  • i_{gr2} - second stage reduction
  • i_{gr3} - third stage reduction
Discipline: mechanical
Managed by: Admin

  Calculation

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