Friction coefficient and main properties of brake pads
The most important performance index of brake pads is the coefficient of friction (the coefficient of friction is a constant). The brake friction coefficient stipulated in our national standard is between 0.35-0.40. Qualified brake pads have a moderate and stable friction coefficient. If the friction coefficient is lower than 0.35, the safe braking distance will be exceeded or even the brake will fail. If the friction coefficient is higher than 0.40, the brakes will easily lock suddenly and cause a rollover accident.
It refers to the ratio of the friction force between two surfaces to the vertical force acting on one surface. It is related to the roughness of the surface and has nothing to do with the size of the contact area. According to the nature of motion, it can be divided into dynamic friction coefficient and static friction coefficient.
Fs/N = μs; (N is the vertical force, μs is the friction coefficient, fs is the friction force), generally the greater the braking force required, the greater the vertical force is required.
The main performance of brake pads
01 High performance: high friction coefficient (for example, the friction coefficient of TMD brake pads used by Porsche 911GT3 reaches 0.45, which belongs to high friction coefficient brake pads), and the friction resistance is very large.
02Safety: low heat decay, good recovery performance, no reduction in braking performance on mountainous roads, high temperature and high speed. Maximize the safety of the vehicle. It is very suitable for use in mountainous areas, high speeds and other various road conditions!
03 Comfort: Balanced braking force and low noise.
04 Lower powder shedding rate, the brake pads are worn out and the powder is consumed. Generally, a low powder shedding rate means that the brake pads can be used for a longer time.
