The service life of automotive wheel hub bearings typically ranges from 100,000 to 150,000 kilometres, but the actual service life is affected by various factors. For example, hub bearings made using forging technology, with a denser molecular structure, are usually more durable than cast bearings. Under harsh road conditions such as rough mountain roads, or with frequent sudden braking and sharp turns, bearing wear will accelerate, so It is best to shorten the inspection interval to about 30,000 kilometres. Daily maintenance is also crucial; regular cleaning of the bearings and checking the condition of the grease can significantly extend their service life. If a continuous buzzing sound or abnormal steering wheel vibration occurs while driving, it may be a sign of bearing wear, and timely inspection and repair are required. For high-load vehicles such as trucks, It is best to perform bearing maintenance every 20,000 to 30,000 kilometres, including cleaning and replacing the grease. However, if the vehicle is frequently exposed to water or the sealing ring is aging, regular inspections are still necessary to prevent grease emulsification or bearing rust.
