Question

Ball and roller bearings and tappet rollers are subjected to rolling friction.

(a) True

(b) False

I got this question during an online interview.

Asked question is from Mechanical Friction topic in chapter Engine Friction and Lubrication of IC Engine

Answer 1

The correct answer is:

(a) True

Ball and roller bearings, as well as tappet rollers, are subjected to rolling friction. These components rely on rolling elements to reduce friction, making them efficient for applications where low friction and smooth movement are desired. Rolling friction is generally lower than sliding friction, which contributes to the longevity and efficiency of these parts.