What is the primary function of the steering knuckle?

The primary function of the steering knuckle is to provide a pivot point for the steering system. This component is crucial because it connects various parts of the steering and suspension systems, allowing the wheels to pivot when the driver turns the steering wheel. The steering knuckle is where the tie rod end and the control arm attach, facilitating movement and ensuring that the wheels can turn left or right effectively. By serving as the axis around which the wheels rotate, the steering knuckle plays a pivotal role in vehicle handling and maneuverability.

The other functions listed, although important in the context of the vehicle's suspension and steering systems, do not define the primary purpose of the steering knuckle. It does contribute to bearing the load of the wheels and supports the vehicle's weight to some extent but its main role is dedicated to enabling steering movement.