Definitions for babbitt metal
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Babbitt metal, babbitt(noun)
an alloy of tin with some copper and antimony; a lining for bearings that reduces friction
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.
Origin: Named after inventor Isaac Babbitt.
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
Babbitt, also called Babbitt metal or bearing metal, is any of several alloys used for the bearing surface in a plain bearing. The original Babbitt metal was invented in 1839 by Isaac Babbitt in Taunton, Massachusetts, USA. He disclosed one of his alloy recipes but kept others as trade secrets. Other formulations were later developed. Like other terms whose eponymous origin is long since deemphasized, the term babbitt metal is frequently styled in lowercase. It is preferred over the term "white metal", because the latter term may refer to various bearing alloys, lead- or tin-based alloys, or zinc die-casting metal. Babbitt metal is most commonly used as a thin surface layer in a complex, multi-metal structure, but its original use was as a cast-in-place bulk bearing material. Babbitt metal is characterized by its resistance to galling. Babbitt metal is soft and easily damaged, which suggests that it might be unsuitable for a bearing surface. However, its structure is made up of small hard crystals dispersed in a softer metal, which makes it a metal matrix composite.
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"babbitt metal." Definitions.net. STANDS4 LLC, 2015. Web. 30 Nov. 2015. <http://www.definitions.net/definition/babbitt metal>.