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Gear reduction ratio
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Reduction ratio of two gear wheels using number of teeth
Input
Number of teeth of first gear
$ z_1 = 21 \: $
Number of teeth of second gear
$ z_2 = 45 \: $
Result
First stage ratio
$$ i_{gr1} = {z_2 \over z_1} $$

Dependant calculations (1)  
Gearbox reduction ratio
Managed by: Admin
public

Three stage gearbox ratio
$$ i_{gb3} = {i_{gr1} . i_{gr2} . i_{gr3}} $$

Calculation details   Show in calculation

This calculation calculates the gear ration of two gear wheels using the number of teeth.

  • z1 - number of theeth of first gear
  • z2 - number of teeth of the second gear
Discipline: mechanical
Managed by: Admin

  Calculation

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