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1. A fixed or removable cylindrical metal lining used to constrain, guide, or reduce friction.
2. Electricity An insulating lining for an aperture through which a conductor passes.
3. An adapter threaded to permit joining of pipes with different diameters.

[From bush.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Mechanical Engineering) another word for bush21
2. (Mechanical Engineering) an adaptor having ends of unequal diameters, often with internal screw threads, used to connect pipes of different sizes
3. (Electrical Engineering) a layer of electrical insulation enabling a live conductor to pass through an earthed wall, etc
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈbʊʃ ɪŋ)

1. Elect. a lining for a hole, intended to insulate and protect from abrasion one or more conductors that pass through it.
a. a replaceable thin tube or sleeve, usu. of bronze, mounted in a case or housing as a bearing.
b. a replaceable steel tube used as a guide for various tools or parts.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.bushing - an insulating liner in an opening through which conductors pass
dielectric, insulator, nonconductor - a material such as glass or porcelain with negligible electrical or thermal conductivity
2.bushing - a cylindrical metal lining used to reduce friction
lining, liner - a protective covering that protects an inside surface
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Extensive range of single-feed hot-runner nozzles and multifeed bushings includes internally heated bushings based on thermocouple-controlled 24-v cartridge heaters; externally heated sensitive materials; multi-tip bushings with up to eight independently controlled tips within one bushing body; patented valve-gate bushings; and hybrid nozzles, which combine the gate-vestige control of the 24-v thermocouple cartridge bushing front section with low-pressure drop of the extended length rear section open-flow bushing.
Also PIM controllers, a portable single-zone version of IMP, are suitable for hot-sprue bushings or single-heater applications.
Heatlock sprue bushings, torpedoes, and manifolds from Nils Helldin AB.
This channel wear brings the molten metal closer to the bushing.
The problem is that molten metal can run out through the bushing even though the prediction methods show nothing wrong.
The ANSI system of identification makes standard bushing specification simple.
Bushing users should check for superfinish to minimize wear, blended radius to minimize tool damage due to misalignment, material hardness (Rockwell test) for long wear, concentricity and roundness to maintain accuracies, OD chamfer at bushing end to prevent peening over or mushrooming ends due to chip accumulation, and ID break (chamfer) to facilitate chip clearance and reduce tool wear.
When this iron penetration gets too close to the bushing joint, a runout can occur.
As pointed out last month in Part 1 of this two-part series, 95% of inductor runouts occur at the bushing joint insulator.