Question

When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they are known as

(a) angular bevel gears

(b) crown bevel gears

(c) internal bevel gears

(d) mitre gears

I got this question during an interview.

My query is from Worm Gears topic in portion Toothed Gearing & Gear Trains of Machine Kinematics

Answer 1

Right answer is (d) mitre gears

The explanation is: When equal bevel gears (having equal teeth and equal pitch angles) connect two shafts whose axes intersect at right angle, then they are known as mitre gears.

When the bevel gears connect two shafts whose axes intersect at an angle other than a right angle, then they are known as angular bevel gears.