How to distinguish soft and hard brake pad material
The only difference is that the wear of the brake pads and the brake discs is higher than that of the soft pads and the hard pads. As for the brake top, it seems that it is useless to see that others have installed it. It seems that the brake clearance is small and the wear of the brake pads increases. Personally, it is recommended not to choose too hard brake pads. Otherwise, the wear of the brake disc will increase.
If the top of the wheel hub is black and gray, it means that there is a problem with the formula material of the brake pads. Carbon black is used instead of the raw material. If the brakes scream, it means that the material of the brake pads is too hard.
Only use professional technology to test the chemical composition. If the surface of the steel pipe is printed with the imprint of the material, this can be distinguished, but this method is not reliable. The 235 material is basically welded pipe, which can be easily identified. No. 45 and No. 345 are no way to identify
Yes, the brake pads of some negative factories are very hard, and the positive ones are softer. The soft ones are friction materials and powder metallurgy. The hard ones are steel backs and steel plates.
First, check whether the replaced brake pads are genuine parts. First, check whether the product packaging is in good condition, whether the anti-counterfeiting marks and packaging marks are consistent with the marks on the brake pads, and whether the product model is consistent with the content of the certificate. The brake pads produced by regular manufacturers are relatively soft. kind of!
The wear-resistant original factory is more assured. Generally, the brake pads should be replaced at 50,000 kilometers, and the hardness of the brake pads should be moderate. Too hard, the brake pads are severely worn, and the braking effect is not very good. Too soft, the brake pads are worn out Big!
