Babbitt metal

Babbitt metal

noun Metallurgy.
1.
any of various alloys of tin with smaller amounts of antimony and copper, used as an antifriction lining for bearings.
2.
any of various similar alloys.
Also, babbitt metal, bab·bitt.


Origin:
1870–75, Americanism; named after Isaac Babbitt (1799–1862), American inventor

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Babbitt metal
 
n
Sometimes shortened to: Babbitt any of a number of alloys originally based on tin, antimony, and copper but now often including lead: used esp in bearings
 
[C19: named after Isaac Babbitt (1799--1862), American inventor]

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Encyclopedia Britannica
Encyclopedia

babbitt metal

any of several tin- or lead-based alloys used as bearing material for axles and crankshafts, based on the tin alloy invented in 1839 by Isaac Babbitt for use in steam engines. Modern babbitts provide a low-friction lining for bearing shells made of stronger metals such as cast iron, steel, or bronze. They may be made of: (1) high-tin alloys with small quantities of antimony and copper; (2) high-lead alloys containing antimony, arsenic, and tin; and (3) intermediate tin-lead alloys with antimony and copper.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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