Question

The angle formed between an element of the pitch cone and the bevel gear axis is

(a) shaft angle

(b) pitch angle

(c) spiral angle

(d) none of the mentioned

The question was asked during an interview.

I would like to ask this question from Bevel Gears in chapter Toothed Gearing & Gear Trains of Machine Kinematics

Answer 1

Right option is (b) pitch angle

Easy explanation: The angle between the tooth trace and an element of the pitch cone, corresponding to helix angle in helical gears is spiral angle.

The angle formed between an element of the pitch cone and the bevel gear axis is pitch angle.