What is a tie rod end's main function in steering?

The main function of a tie rod end is to serve as a ball-joint that connects the steering rack to the steering knuckle. This connection allows for the transfer of motion from the steering system directly to the wheels, enabling the vehicle to turn in the desired direction. When the driver turns the steering wheel, the movement travels through the steering mechanism, and the tie rod end plays a crucial role in articulating this motion to the suspension components and wheels.

The tie rod end facilitates the pivoting motion necessary for steering while also absorbing some road impacts and aiding in the vehicle's alignment. This component is an essential part of the vehicle's steering geometry, ensuring efficient and responsive steering performance, which is critical for overall safety and handling.