Which system do ball joints primarily support?

Ball joints primarily support the suspension system of a vehicle. They are crucial components that connect the steering knuckles to the control arms. By allowing for both rotational and linear movement, ball joints enable the suspension to function effectively. This design facilitates smooth motion as the vehicle encounters bumps, dips, and turns, helping to maintain tire contact with the road and enhancing ride comfort and vehicle handling.

The role of ball joints is significant in supporting the overall geometry of the suspension system, thereby contributing to vehicle stability and performance. Their articulation allows the suspension to absorb shocks and oscillations while providing the necessary pivot points for the steering system.