A ball joint is a crucial component of a tractor's suspension system. It functions similarly to a ball and socket joint in the human body, providing a pivot point between two parts. Typically made of steel, a ball joint consists of a spherical bearing that is housed within a socket, allowing it to move in multiple directions. The main job of the ball joint is to connect the suspension components (such as the control arms) to the wheel hub or steering knuckle.
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