Brake Pads 29167

Brake pads common problems

At present, the size of the friction block of the same type of brake pad is inconsistent among the domestic manufacturers, especially the width of the friction block, and the dimensional deviation between the manufacturers can reach up to three millimeters. This results in a smooth surface of the brake disc, but a large-sized brake pad can also sound if it is attached to a brake disc that has a small brake pad. In case of abnormal noise in the vehicle brakes, first analyze the situation and then check to determine the cause of the problem. Do not blindly replace the accessories.

Remove the original brake pad and replace it with a new brake pad. According to the actual situation, the original brake pad has a chance of scratching the original brake disc of more than 50%. First, because it is the original car, and secondly, it is only scratched and does not sound, so 90% of the repair shop and the driver I don't believe that the original brake pads are damaged, so when I replace the new brake pads, I don't actively check whether the brake discs have scratches. When I check the new ones, I will check the brake discs. If the surface of the brake disc is flat, but a new brake pad is installed. It may be that the repairman has biased the brake pads. When removed, you can see that the surface of the brake pads is only partially scratched.

Brake pad ash

When the brake pads of a car are working, since the principle of the work is friction, there is bound to be ash. But why some cars look a lot gray, the reason is related to the car wheel structure and the material of the brake pads and other reasons. The different shape of the automobile wheel hub will affect the speed at which the ash is blown away by the wind; the difference in the material of the brake pad will also affect the adsorption force of the ash.

Traditional asbestos materials are more likely to be adsorbed on the wheel of a car because of their longer fibers. Today's friction materials have a shorter fiber length and are more easily blown away by the wind. But at the same time, today's cars pay more attention to their comfort. Hard materials tend to be stiff when braking. So now softer materials are used, so that the car will be more comfortable when braking, but it will also cause more ash. . In the final analysis, the ash of the brake pads is only a surface phenomenon, which does not affect the performance of the brake pads.

Brake pad groove

The flatness of the surface of the brake disc of a car will affect the performance of the brake to a certain extent. The braking effect of the vehicle brake system is affected by many factors. In addition to some natural factors, the brake pads and brake discs are more important in the vehicle. The same applies to the brake pads. The brake pads and brake discs need to be replaced after they have worn out to a certain extent. However, if there are some irregularities on the surface of the brake disc, some conditions can be repaired.

The premise of brake disc repair is to repair the brake disc that generates the groove under the condition of ensuring the brake disc is safely braked, so that the surface of the brake disc after repair is exactly the same as the new brake disc, and has the same effect. Safety functions and mileage are also improved before the repair, which can save the owner some expenses. Brake disc repair is mainly to make the surface of the brake disc more flat, and the disc fit effect is better, so that the braking effect of the vehicle is improved.