The function of Wheel Hub, Brake Drum and Brake disc

2024,08,10

A Wheel Hub is the central part of a wheel that connects the wheel to the vehicle's axle or steering knuckle. It usually includes features like bearings, seals, and sometimes a Brake Drum or Brake disc for vehicles with an integrated braking system.

The Wheel Hub assembly may include:

1. Hub Assembly: This includes the wheel mounting flange that attaches to the wheel and the bearing seat that holds the wheel bearings.

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2. Wheel Bearings: These are crucial for smooth rotation of the wheel. They allow the wheel to spin freely while also maintaining the wheel in place on the hub.

3. Brake Components: In vehicles equipped with disc brakes, the hub assembly often includes the brake rotor, which is attached to the wheel and spins along with it. The brake caliper then presses against this rotor to slow down or stop the vehicle.

In modern vehicles, the hub is often an integral part of the vehicle's Suspension system and can be quite complex, incorporating components like CV joints for front-wheel drive vehicles, or other specialized parts depending on the vehicle design.

Regular maintenance of wheel hubs is important to ensure the safety and longevity of your vehicle, as issues with the hub can lead to vibrations, noise, and potential failure of critical components.