What happens when the wheel bearing is damaged
When one of the four wheel bearings is broken, you can hear a constant hum in the car while it's moving. You can't tell where it's coming from. It feels like the whole car is filled with this hum, and it gets louder as you go faster. Here's how:
Method 1: Open the window to listen to whether the sound comes from outside the car;
Method 2: After increasing the speed (when there is a large hum), put the gear in neutral and let the vehicle glide, observe whether the noise comes from the engine. If there is no change in the hum when sliding in neutral, it is probably a problem with the wheel bearing;
Method three: temporary stop, get off to check whether the temperature of the axle is normal, the method is: touch the four wheel load by hand, roughly feel whether their temperature is caused (when the gap between the brake shoes and the piece is normal, there is a difference in the temperature of the front and rear wheels, the front wheel should be higher), if the feeling difference is not big, you can continue to drive slowly to the maintenance station,
Method four: lift the car to rise (before loosening the handbrake, hanging neutral), no lift can be jack one by one to lift the wheel, manpower respectively rapidly rotate four wheels, when there is a problem with the axle, it will make a sound, and other axles are completely different, with this method is easy to distinguish which axle has a problem,
If the wheel bearing is seriously damaged, there are cracks, pitting or ablation on it, it must be replaced. Grease the new bearings before loading, and then install them in the reverse order. The replaced bearings must be flexible and free of clutter and vibration
