Bush (mechanical)
From Wikipedia, the free encyclopedia
- Bush mechanics is an Australian slang phrase
A bush is a mechanical fixing between two, possibly moving, parts, or a strengthened fixing point where one mechanical assembly is attached to another.
In a car or other vehicle's suspension, bushes are used to connect the various moving arms and pivot points to the chassis and other parts of the suspension. In order to minimise vibration, wear and transmission of noise, they often incorporate flexible material such as rubber or polyurethane. These bushes often take the form of an annular cylinder of flexible material inside a metallic casing or outer tube. They might also feature an internal crush tube which protects the bush from being crushed by the fixings which hold it on to a threaded spigot. Many different types of bush designs exist [1].
Another type of bush is a hardened threaded fixing hole which allows one assembly to be fixed to another by means of a screw or threaded bolt. The use of a bush can make assembly easier because it avoids the need for a separate nut and washer on the other side of the fixed material. Bushes can be fitted into sheet material by riveting - often the rivet itself incorporates the bush.


