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bushing

bushing

1 7.7
A sleeve placed around a wire where it passes through metal to stop electrical shorts
  • noun
  • /ˈbʌʃɪŋ/
  • Specialized
translation icon : manguito
  • The electrical engineer specified a bushing that would provide maximum insulation for the cable connections.
  • bushing and plastic shaft

Examples

  • I tried these blue concrete anchors for the first time that don't require plastic bushings and they work pretty nicely.

  • These are concrete and brick walls, so I had to drill holes for bushings first and then screw the strips to the wall.

  • Locate these two plastic bushings, these two, and put them from the inside going out.

  • The drive is available in 11 sizes with bushing bores from 1 to 6.5 in.

    Academic text (1995)
  • Sometimes the fuser film sleeve, pressure roller, and bushing must be replaced if damaged or worn.

    Blog text (24)
  • The oil-lubricated external bearings eliminate the problems associated with internal sleeve bushings.

    Academic text (1997)
  • The bushing is part of a device called the Mini-Corer, which will drill into the Martian surface to collect soil and rock samples for chemical analysis.

    Academic text (2007)
  • The heavy source block, supported on porcelain bushings, had heaters that warmed a large reservoir of uranium tetrachloride.

    Academic text (2006)
  • The technician replaced the old bushing to ensure the electrical wires were properly insulated.

  • When installing the new light fixture, make sure to insert the wires through the bushing for safety.

Synonyms

casing
vsbushing
45 3.0

An outer cover that protects things like a tire from damage

is placed inside openings as an insulating lining not an outer housing
insulator
vsbushing
  • Specialized
5 4.7

A material like glass that does not let electricity or heat pass through

is a shaped lining fitted into an opening rather than raw material
sleeving
vsbushing
  • Specialized
6.3

A protective tube placed around wires to prevent damage

is fitted inside an opening to protect a conductor passing through

Surface Forms

bushing singular
bushings plural

Morphology

bushing = bush (opaque) = bush + ing

This is a regular suffixal noun formation, but the engineering sense depends on the specialized meaning of 'bush' rather than the familiar everyday word for a shrub.

Etymology

Bushing comes from the old word bush, which was used for a small piece that fit inside a hole like a 'sleeve' or 'plug'. So a bushing is a sleeve that protects or insulates a wire as it passes through metal.