Q:

The pressure angle of two gears in a mesh is φ = 25°. The number of teeth on the pinion is 45 and the gear ratio is 2. The module is 6 mm and addendum = 1.1 module. Find the contact ratio of these two gears.

A) 1.7 B) 2.3
C) 4.2 D) 3.5
 

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