1. Wheel Hub:
- The central part of the assembly that acts as the mounting point for the wheel.
- Contains bearings that allow the wheel to rotate smoothly and reduce friction.
2. Bearings:
- Precision components located within the wheel hub that enable the wheel to spin freely.
- Typically, ball bearings or roller bearings are used for their durability and low rolling resistance.
3. Wheel Studs/Bolts:
- Extend from the wheel hub and are used to secure the wheels to the vehicle.
- Lug nuts or bolts are used to tighten the wheels against the hub, ensuring they remain securely in place.
4. ABS Sensor (if equipped):
- Magnetic or optical sensors that monitor the rotational speed of each wheel.
- This information is crucial for the proper functioning of the vehicle's anti-lock braking system (ABS).
5. Grease Seal:
- Prevents contaminants like dirt, water, and debris from entering the wheel bearing and causing premature wear and tear.
- Keeps the bearing system lubricated with the appropriate type of grease.
6. Knuckle:
- A steering component that connects the steering assembly to the wheel hub and allows the wheels to turn.
By combining these components, a wheel hub assembly provides a reliable connection between the vehicle's suspension system and the wheels, ensuring proper handling, stability, and optimal performance. Regular inspection and maintenance of wheel hub assemblies are essential for the safety and longevity of the vehicle's overall performance.
