image = |designers = [[User:Tim|Timothy Schmidt]] |date = 2013 |vitamins = |materials = |transformations = |lifecycles = |parts = [[Frames]], [[Plates]], [[Bolts]], [[Nuts]], [[Ball hitches]] |techniques = |tools = [[Wrenches]] |git = |files = |suppliers = |reversible = true

Techniques

=Introduction= In an automobile, ball joints are spherical bearings that connect the control arms to the steering knuckles, and are used on virtually every automobile made. They bionically resemble the ball-and-socket joints found in most tetrapod animals.

A ball joint consists of a bearing stud and socket enclosed in a casing; all these parts are made of steel. The bearing stud is tapered and threaded, and fits into a tapered hole in the steering knuckle. A protective encasing prevents dirt from getting into the joint assembly. Usually, this is a rubber-like boot that allows movement and expansion of lubricant. Motion-control ball joints tend to be retained with an internal spring, which helps to prevent vibration problems in the linkage.

=Challenges=

=Approaches= * [https://www.westerntowing.co.uk/product/alko-pressed-steel-coupling-to-fit-40mm-wide-box/# Alko pressed steel trailer coupling for 40mm frames]

=References= * [https://en.wikipedia.org/wiki/Ball_joint Wikipedia: Ball joint]