A wheel bearing is a set of steel balls held together in a metal ring, called a race. At the center of your wheels, there is a hollow piece of metal, called a hub. The wheel bearings fit tightly inside this hub, and ride on a metal axle shaft, helping reduce friction.

Wheel bearings allow the wheel to spin smoothly and avoid damage to other suspension components. They include a central housing and a number of rollers which roll along a separate smooth outer bearing race. Some wheel bearings include both an inner and an outer race with rollers in between as one unit.A properly working wheel hub assembly (WHA) prevents you from feeling wheel wobbling and vibrations, ensuring a safer and smoother ride. Avoid unwanted growling, rumbling or humming noises when you're turning a corner or rubble-roaming by investing in a high-quality wheel bearing.