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Which bronze alloy is commonly used as bearing alloy?

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Which bronze alloy is commonly used as bearing alloy?

(a) Phosphor bronze

(b) Silicon bronze

(c) Aluminum bronze

(d) Leaded bronze

I have been asked this question during a job interview.

My enquiry is from Copper and its Alloys topic in chapter Non Ferrous Materials of Engineering Material & Metallurgy

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Right choice is (d) Leaded bronze

Explanation: Leaded bronze has increased strength, due to which it can carry high leads, and has the ability to work at higher speeds. It is used as a bearing alloy. It consists of 75% copper, 5% tin, 18% lead, and 2% nickel.

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