Babbitt metal

Metall.
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.
[1870-75, Amer.; named after Isaac Babbitt (1799-1862), American inventor]

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also spelled  Babbit 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.

      The small quantities of hard metal in a soft matrix of tin or lead create a material strong enough to bear relatively high speeds and loads yet soft enough to embed dirt or other intrusions and not seize up on a spinning shaft in case of lubrication failure. Tin babbitts can be used at higher temperatures than the cheaper lead alloys, but most babbitts cannot endure prolonged use in high-performance internal-combustion engines, for which bearings are now made with linings of copper and aluminum alloys.

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Universalium. 2010.

Look at other dictionaries:

  • Babbitt metal — Babbitt metal, also called white metal, is an alloy used to provide the bearing surface in a plain bearing. It was invented in 1839 by Isaac Babbitt [The Timetables of Science|pages=305] in Taunton, Massachusetts, USA. The term is used today to… …   Wikipedia

  • Babbitt metal — ☆ Babbitt metal n. [after Isaac Babbitt (1799 1862), U.S. inventor] a soft white metal of tin, lead, copper, and antimony in various proportions, used to reduce friction as in bearings …   English World dictionary

  • Babbitt metal — Bab bitt met al [From the inventor, Isaac Babbitt of Massachusetts.] A soft white alloy of variable composition (as a nine parts of tin to one of copper, or of fifty parts of tin to five of antimony and one of copper) used in bearings to diminish …   The Collaborative International Dictionary of English

  • Babbitt metal — Babbitt metal. См. Баббит. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • Babbitt metal — noun an alloy of tin with some copper and antimony; a lining for bearings that reduces friction • Syn: ↑babbitt • Derivationally related forms: ↑babbitt (for: ↑babbitt) • Hypernyms: ↑alloy, ↑ …   Useful english dictionary

  • babbitt metal — /ˈbæbət mɛtl/ (say babuht metl) noun 1. an antifriction metal, an alloy of tin, antimony, lead, and copper, used for bearings, etc. 2. any of various similar alloys. {named after Isaac Babbitt, 1799–1862, US inventor} …   Australian English dictionary

  • babbitt metal — noun a soft alloy of tin, antimony, copper, and usually lead, used to line bearings. Origin C19: named after Isaac Babbitt, the American inventor …   English new terms dictionary

  • Babbitt metal — Bab′bitt met al n. mel any of various alloys of tin with smaller amounts of antimony and copper, used as an antifriction lining for bearings • Etymology: 1870–75; after Isaac Babbitt (1799–1862), U.S. inventor …   From formal English to slang

  • babbitt metal — See babbitt …   Dictionary of automotive terms

  • babbitt metal — noun A soft white alloy of variable composition (as a nine parts of tin to one of copper, or of fifty parts of tin to five of antimony and one of copper) used in bearings to diminish friction …   Wiktionary

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