Question

Which type of bearing bronze is the weakest?

(a) Plain tin bronze

(b) Phosphorus bronze

(c) Leaded bronze

(d) Sintered bronze

This question was addressed to me by my college professor while I was bunking the class.

My question is from Bearing Materials in portion Non Ferrous Materials of Engineering Material & Metallurgy

Answer 1

Correct option is (c) Leaded bronze

Explanation: Leaded bronze is a Copper-base bearing alloy containing 75% Cu, 5% Sn, 18% Pb, and 2% Ni. They are less stronger than other bearing bronzes. However, they can sustain higher loads than white metals, at higher speeds.