Question

The cam follower generally used in automobile engines is

(a) knife edge follower

(b) flat faced follower

(c) spherical faced follower

(d) roller follower

I got this question in quiz.

My doubt is from Cams in division Cams of Machine Dynamics

Answer 1

Correct choice is (c) spherical faced follower

To explain: When the contacting end of the follower is of spherical shape, it is called a spherical faced follower. It may be noted that when a flat-faced follower is used in automobile engines, high surface stresses are produced. In order to minimise these stresses, the flat end of the follower is machined to a spherical shape.