Moyeux de roue
The wheel hub is the mounting point where the wheel attaches to the vehicle, between the wheel and the axle or suspension. It provides the bolt face the wheel fastens to and houses or carries the wheel bearings, transferring the vehicle load and the driving and braking forces between the wheel and the axle.
The hub gives the wheel a precise, secure mounting face and keeps it located as it turns. It carries the load between the wheel and the axle, and on many designs it holds the wheel bearings and, where fitted, the ABS sensor. A correctly running hub keeps the wheel turning true without wobble.
A hub wears mainly through its bearings, but it can also be damaged by impacts or corrosion. Signs include shaking through the steering at speed, vibration, wheel looseness or play, uneven tire wear, sluggish or pulling steering, and an ABS warning light on hubs with a built-in sensor. Because handling and safety depend on it, a worn or damaged hub is inspected and replaced promptly, often together with the matching side.
The correct hub depends on the vehicle model, the axle, the bolt pattern, and whether it includes a bearing or ABS sensor. Confirm the part against the vehicle specification before fitting.
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Frequently asked questions
What does a wheel hub do?
It is the mounting point where the wheel attaches, carrying the load between the wheel and the axle and keeping the wheel located as it turns.
What are the signs of a bad wheel hub?
Shaking through the steering at speed, vibration, wheel play, uneven tire wear, and on hubs with a built-in sensor, an ABS warning light.
Can a worn hub trigger the ABS light?
Yes, if the hub has a built-in ABS sensor that malfunctions. The light points to a problem that needs prompt attention.
Should hubs be replaced on both sides?
Often it is recommended for even wear and balanced handling, since the matching side has usually seen similar use.