+1 vote
in Machine Kinematics by (38.0k points)
A pair of helical gears has fewer teeth in contact as compared to an equivalent pair of spur gears.

(a) True

(b) False

This question was posed to me during a job interview.

My question is taken from Contact Ratio in portion Toothed Gearing & Gear Trains of Machine Kinematics

1 Answer

0 votes
by (45.7k points)
The correct answer is (b) False

The best I can explain: In spur gears, the contact between meshing teeth occurs along the entire face width of the tooth, resulting in a sudden application of the load which, in turn, results in impact conditions and generates noise.

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