about slagging of truck wheel bearing, over-tightening of hub bearings is the main reason

The wheels of the truck ran away while driving. Although this is a small probability event, it happens from time to time. It's okay not to hurt people. Once hurt, there will be a series of headaches. The truck wheels usually run away due to problems with the hub bearings. There are some photos of the truck wheel bearing that are too tight and cause the bearings to fall apart. Let's analyze them together.

The truck wheel bearing were ground into powder, it turned out to be a problem with assembly
This trailer went into the factory for repair due to the abnormal sound of the wheels. Through dismantling, it was found that the bearings in one of the hubs had been seriously worn out and caused a breakage. The hubs were also worn out of the outer circle, and the grease was basically evaporated by high temperature. It can be said that the wheels almost ran away. 
The main reason for this result is generally caused by excessive preloading of the truck wheel bearing when maintaining the hub. Once the truck wheel bearing is preloaded too much, it will cause excessive resistance to bearing motion and generate high temperature. Over time, the grease will evaporate, causing the bearing to dry wear and damage the bearing, which will eventually cause the loose wheel of the bearing to separate from the car body.

● Careful maintenance of the wheels

This is a typical failure caused by carelessness. The repair shop adjusted the pretension of the truck wheel bearing too tightly when maintaining the wheel hub. In fact, during the operation of the vehicle, the bearing generates high temperature and evaporates the grease to cause the failure of the truck wheel bearing. However, the truck driver's failure to check the temperature of each wheel hub during driving is also one of the reasons for this failure.

Editor's note: truck maintenance not only depends on the repair shop, but also requires cardholders to check more often. Failures will inevitably occur, if you can find it in time to minimize the loss, it is also a way to save money.

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