Question

Face width of the bevel gear is usually equal to

(a) 10 modules

(b) pitch cone radius/3

(c) pitch cone radius/2

(d) none of the mentioned

I have been asked this question in examination.

Enquiry is from Bevel Gears-1 in division Toothed Gearing & Gear Trains of Machine Kinematics

Answer 1

Correct answer is (b) pitch cone radius/3

The best explanation: For correctly designed gears the face width should not be more than 1/3 the slant length, i.e. pitch cone radius.