The main function of the steering ball joint (also known as the steering tie rod end) is to connect the vehicle's steering system with the wheel suspension system, allowing the wheels to steer. Specifically, through its flexible connection structure, it enables the wheels to turn freely at different angles, thereby achieving smooth and precise steering control. If the steering ball joint is worn or damaged, the vehicle's steering performance will deteriorate, which may result in loose steering, wheel wobbling, or abnormal movement, affecting the safety and soundness of driving.