Friction coefficient of brake pads
The friction coefficient of brake pads is not the bigger the better, depending on the specific model and use. The brake pads used in the Chinese market are FF grade. The above is a high standard for friction materials, to achieve comprehensive is difficult. Therefore, different requirements are put forward for different models and different conditions of use. In order to meet the needs of different users, wear-resistant brake pad products are also gradually diversifying.
According to the national standard, the suitable working temperature of the brake friction sheet is 100 ~ 350℃. In general, according to SAE standards, brake friction plate manufacturers will choose FF grade rating coefficient, that is, the friction rating coefficient is 0.35 ~ 0.45. However, when the temperature reaches 250 ° C, the coefficient of friction will drop sharply, and the brake will completely fail at this time.
When the car needs emergency braking at high speed, the friction coefficient is too low, the brake will be insensitive, and the friction coefficient is too high, the tire lock phenomenon will occur, which will cause the vehicle to throw the tail and skid, posing a serious threat to driving safety. Different requirements are put forward for different models and different conditions of use. In order to meet the needs of different users, wear-resistant brake pad products are also gradually diversifying.
