What is a steering knuckle?

A steering knuckle, also known as a spindle, is a component of a vehicle's suspension system that connects the wheel to the control arms and steering components. It is a critical part of the steering mechanism, allowing the wheel to pivot and turn in response to steering inputs from the driver.

The steering knuckle is typically made of cast iron or forged steel to withstand the forces and stresses experienced during steering and braking. It is designed to support the weight of the vehicle and provide a connection point for the wheel hub, bearings, and brake components.

Steering knuckles are usually located at the front of the vehicle and play a key role in controlling the direction and stability of the vehicle. They must be properly aligned and maintained to ensure safe and efficient steering performance.

In some vehicles, the steering knuckle may also incorporate provisions for attaching the wheel speed sensor, ABS system, and other sensors that monitor the vehicle's performance.

Overall, the steering knuckle is an essential component of a vehicle's steering system, responsible for translating the driver's input into precise control of the vehicle's direction and handling.