Q:

The shaft angle of two helical gears is 60°. The normal module is 6 mm. The larger gear has 50 teeth and the gear ratio is 2. The centre distance is 300 mm. Find the helix angles of the two gears.

A) Ψ₁ = 11.68°, Ψ₂ = 48.32° B) Ψ₁ = 13.02°, Ψ₂ = 46.98°
C) Ψ₁ = 10.11°, Ψ₂ = 49.89° D) Ψ₁ = 12.21°, Ψ₂ = 47.79°
 

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