(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, is 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.