bushing
- noun
- /ˈbʌʃɪŋ/
- Specialized
- The electrical engineer specified a bushing that would provide maximum insulation for the cable connections.
- bushing and plastic shaft
Examples
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I tried these blue concrete anchors for the first time that don't require plastic bushings and they work pretty nicely.
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These are concrete and brick walls, so I had to drill holes for bushings first and then screw the strips to the wall.
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Locate these two plastic bushings, these two, and put them from the inside going out.
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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.
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When installing the new light fixture, make sure to insert the wires through the bushing for safety.
Synonyms
An outer cover that protects things like a tire from damage
A material like glass that does not let electricity or heat pass through
A protective tube placed around wires to prevent damage
Surface Forms
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.