Question

Bearing materials used for low load applications are ______

(a) Ceramic bearing materials

(b) Plastic bearing materials

(c) White bearing materials

(d) Copper-base bearing materials

The question was asked in exam.

This intriguing question comes from Bearing Materials topic in portion Non Ferrous Materials of Engineering Material & Metallurgy

Answer 1

The correct answer is (b) Plastic bearing materials

For explanation I would say: Plastic bearing materials have low coefficients of friction. They are used for low load applications, especially where oil lubrication is undesirable. The common types of plastic bearing materials are Nylon and Teflon.