How long does the wheel bearing last?

　　All the components that can rotate and move in the car must have Lubrication Tools, otherwise it will wear out quickly. Some are liquid lubricants that need to be replaced regularly, some are grease and do not need to be replaced. For example, in the half-shaft cage and the outer ball of the steering tie rod, the grease is grease. As long as the rubber sleeve that wraps the grease is not damaged and the grease leaks, it does not need to be replaced for life. If the rubber sleeve is damaged, the grease and the rubber sleeve should be replaced, because if the oil is not changed, the grease will be pulled out, and the final grease will be lacking, resulting in poor lubrication. Today we have to talk about the four-wheel bearing. It does not have a rubber sleeve to wrap the grease. Do you need to add lubricating oil?

Grease Gun

　　In the usual maintenance of large trucks, there are items for adding grease to various moving parts. All of them have special addition ports, which can be directly used by Grease Gun. The car does not need to do this maintenance, the wheel bearing is also lubricated with grease, but it is a fully sealed overall structure. This bearing is closed, the grease inside will not flow to the outside, and the dirt outside will not enter. As long as the grease does not flow out, it will not be lost. Its function is only a simple lubrication, and there is no problem that the failure does not work. Therefore, the four wheels do not need to be lubricated in the usual time. As long as there is no abnormality, no maintenance is needed for life.

　　Although there is no need to maintain, there are also possible bad. The performance of the broken wheel bearing is abnormal when driving, and it is generally a squeaking sound. It is because the balls inside are out of round or have abnormal wear, and when they rotate, they will rub against the surroundings and make a sound. As long as the bearing has abnormal noise, it can not be repaired and can only be replaced. Different models of bearings are not the same, some are a one-piece, integrated with the shaft head, abs sensor, the replacement must be replaced at the same time, the price is very high. Some are ordinary small bearings. Only replace this small part when replacing. The price is very cheap, but it is more troublesome to replace, and the working time is higher than the whole one.

　　The life of the wheel bearings is very long. Most of them can be used for more than 100,000 kilometers. Some cars run hundreds of thousands of kilometers, and there is no bad life. Usually most of the bearings are old. car. Bearings do not need to be cured, so its life is not only related to its own quality problems, but also has a lot to do with the environment in which the vehicle is used. The road conditions are not good, there are many roads, the road surface does not decelerate over the deceleration belt, the vehicle load is relatively large, often full load or overload, etc., will affect the bearing life. These kinds of road conditions and methods of use will not only affect the life of the bearing, but also affect the life of the shock absorber, tires and other components of the chassis. Therefore, the deceleration must be slowed down and not overloaded.

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