Industry News

What's Wrong With the Inconsistent Wear of the Left and Right Brake Pads?

2022-08-30
First of all, it is normal as long as the wear degree of the left and right brake pads is not very different. It should be known that the force and speed of the four wheels of the car are different on different roads and curves, and the braking force will also be different. Therefore, it is normal for the brake skin to have a deviation.

Moreover, most of the ABS systems of current vehicles are equipped with EBD (electronic braking force distribution), and some are equipped with ESP (electronic body stability system) as standard. The braking force of each wheel is "distributed on demand".

I.Working principle of brake pad
Each wheel brake pad is composed of two inner and outer pads, which are connected by two telescopic rods. When the brake is pressed, the two brake pads hold the brake disc. When the brake is released, the two brake pads move to both sides along the telescopic rod and leave the brake disc.

II.Causes of inconsistent wear of left and right brake pads
1. The speed of wear is directly related to the material of brake disc and brake pad, so it is possible that the material of brake pad is not uniform;
2. When turning and braking frequently, the forces on the left and right wheels are unbalanced, which will also lead to inconsistent wear;
3. One brake disc may be deformed;
4. The return of the brake cylinder is inconsistent. For example, the return bolt of one side of the brake cylinder is dirty;


5. There is a big difference between the length of the left and right brake oil pipes;
6. The telescopic rod is sealed by a rubber sealing sleeve. However, if there is water or lack of lubrication, the rod cannot expand and contract freely, and the outer pad behind the brake cannot leave the brake disc, and the brake pad will be additionally worn;
7. The braking time of the left and right brakes is inconsistent;
8. Suspension problems;
It can be seen that in general, this situation should be caused by insufficient unilateral braking or unilateral drag. If the two brake pads of the same wheel wear unevenly, it is necessary to check whether the brake pad materials are consistent, whether the brake cylinder is in good return, and whether the cylinder support is deformed. If the wear between the left and right wheels is uneven, it is necessary to focus on checking whether the braking time of the brakes on the left and right sides of the coaxial line is consistent, whether the suspension is deformed, whether the suspension body floor is deformed, and whether the spring force of the suspension coil spring is decreased.



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