different between bushing vs bearingspacer

English

bushing (plural bushings)

(mechanical engineering) A type of bearing, a cylindrical lining designed to reduce friction and wear inside a hole, often used as a casing for a shaft, pin or hinge.
(mechanical engineering) An elastic bearing used as a type of vibration isolator, commonly made of rubber. An interface between two parts, damping the movement and the energy transmitted.
(mechanical engineering) A threaded bushing: a fastener element that is inserted into an object, usually to add a threaded hole in a softer or thin material.
(electrical engineering) A lining for an opening through which a conductor passes, providing insulation and mechanical protection for the conductor.
An adapter for joining pipes of different size.

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