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Brake disc wear replacement standard

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2022-03-03

With the development of the automobile industry, cars have entered thousands of households.

With the development of the automobile industry, cars have entered thousands of households. And the brake performance of the car is the most concerned issue. When the brakes were developed from drum to disc, the advantages of disc brakes were fully shown - strong performance and fast heat dissipation. Nowadays, cars basically use butterfly brakes. So, how often do we need to replace the brake discs in the process of use?

Some people say that the brake discs are about 5W km for the front wheels and 10W for the rear wheels. Actually, I think there is no standard. The replacement of brake discs has a lot to do with driving habits and driving conditions. If you drive in urban areas or mountainous areas, the brake frequency is high, then the wear and tear is fast, and the replacement time or kilometers will be shortened, while driving at high speed or less braking will be extended.

How can you tell if a brake disc needs to be replaced?

First, visually inspect the surface of the brake disc, whether there is a deep (more than 1.5mm) groove, it is estimated that the brake disc needs to be replaced. This is mainly due to foreign objects such as debris in the middle of the brake disc and brake pads; the brake pads are worn to the limit and the metal layer rubs against the brake disc. Secondly, the brake disc has a wear limit mark (most of them have several grooves), when the wear mark disappears, the brake disc should be replaced. Thirdly, when the brakes are applied, a sharp rattling sound occurs and the braking effect is poor, and the brake pads cannot be improved even after changing them. In this case, you can use the method of enamelling, but the two sides of the enamelling can not exceed 3mm, otherwise replace the brake disc. Fourth, when braking, if the scene of tire jumping occurs, then check whether the brake disc is deformed, such as deformation must be replaced. Fifth, often just as soon as the car is parked and washed, the brake disc due to high temperature suddenly encounter cold water, due to thermal expansion and contraction and deformation, using the brake disc damage. Sixth, there are some models of dashboard display brake pads and brake disc replacement indicator. In general, it is necessary to check the brake disc when replacing the brake pads. Brakes are about everyone's safety, so don't be careless. Some people change their brake discs in a few tens of thousands of kilometers, and some people don't change their cars even if they are nearing the end of their lives. The key is that various factors cause the brake discs to wear out, and don't listen to what some stores say is so mysterious, as long as you grasp the above few, the brakes are worry-free.

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