The WHA is located between the brake drums or discs and the drive axle. A wheel is bolted on it. Depending on the construction, the end of the hub comes equipped with the splined teeth. They mate the teeth on the axle shaft. The axle hub spins along with the wheels bolted to it and provide power to the wheels in order to rotate.

A roller bearing between the axle hub and axle shaft ensures easy rotation of the non-drive wheels. On the axle side, it is mounted to the holding bracket from the chassis; on the disc side, the wheel is mounted to the bolts of the WHA. When replacing, a wheel hub assembly should be torqued to the vehicle's specifications to prevent failure.

Advantages of truck hub bearing include:

1.Pre-adjusted for easy installation

2.Lubricated and sealed for extended life

3.Can withstand extreme operating conditions

4.Cost-effective installation process

5.Low maintenance

Working principle:
Truck hub bearings are factory preconditioned, lubricated and sealed to simplify installation. Wheel bearing units are available for trucks, trailers and buses. Wheel bearing units are designed to withstand the typical severe operating conditions and require less maintenance than the traditional wheel bearing sets they replace. Some variants come with an integrated impulse ring, which makes them suitable for anti-lock braking systems. The unit also saves time and money on brake maintenance.