Bearings MCQ with Answers

In conveyor belt rollers, normally roller bearings are used.

In Needle roller bearings the length of needles are at-least four times of their diameter.

Journal bearings are sometimes called friction bearings.

Tin and lead-base Babbitt's are among the most widely used bearing materials. They have an ability to embed dirt and have excellent compatibility properties under boundary lubrication.

Bearings are used for
Support and hold the shaft in a fixed position
Allow the shaft to run freely
Minimize the rubbing action