Here are some key functions and features of a steering knuckle:

Supporting Weight: The steering knuckle is responsible for bearing the weight of the vehicle and transmitting it to the suspension system.

Suspension Components: The steering knuckle provides a mounting point for various suspension parts such as the top and lower control arms, shock absorbers and a steering linkage.

Wheel Mounting: On the knuckle there is mounted a wheel hub where the wheels sit.

Pivot mechanism: The steering knuckle provides the means for the wheel to pivot in the left or right direction when being steered. The steering linkage, usually through a ball joint or other types of joints, makes this possible.

The steering knuckle is a very important component in connecting the car’s front wheels for steering and suspension functions, while also being responsible for supporting the weight of the car. When the steering knuckle is damaged or worn, handling, safety and performance of the car are hampered making it necessary for a regular check-up.