Babbitt metal

Babbitt metal is a type of bearing material that was invented in the early 19th century. It is an alloy that typically consists of tin, antimony, and copper. The metal was named after its inventor, Isaac Babbitt, an American inventor and manufacturer.

History

Isaac Babbitt first introduced babbitt metal in 1839. He was granted a patent for the alloy in the United States in the same year. Babbitt initially designed the metal for use in steam engine bearings, but it has since found a wide range of applications in various industries.

Composition

The exact composition of babbitt metal can vary, but it typically consists of around 90% tin, 7% antimony, and 3% copper. This composition gives the alloy its characteristic properties, including excellent resistance to wear and galling, good thermal conductivity, and low melting point.

Properties and Uses

Babbitt metal is known for its excellent bearing properties. It has a low coefficient of friction, which makes it ideal for use in bearings. The metal is also highly resistant to galling and wear, which further enhances its suitability for this application.

In addition to its use in bearings, babbitt metal is also used in a variety of other applications. These include use in the manufacture of pistons, cylinder liners, and other engine components. The metal's low melting point and good thermal conductivity also make it suitable for use in soldering and brazing applications.

See Also

• Tin-based Babbitt
• Lead-based Babbitt
• Copper
• Antimony
• Bearing