The main factors affecting the brake pad friction coefficient are: 1. the nature of the material; the same metal or metal miscibility increase friction prone to sticking phenomenon, the friction coefficient increases. Due to poor solubility of different metals supply brakes, less prone to sticking, friction coefficient is generally low. 2. The table exists mask; infrastructure in the air there is always a layer of oxide film, can reduce the friction coefficient. Impact load 4;; 3. the speed and the effect of temperature for most substances, load changes will directly affect the coefficient of friction. 5. The impact of vibration; 6 finish in. Friendly reminder brakes manufacturer of brake pads manufacturer, said: Usually the first time you can replace 6-7 million kilometers. It also depends on your specific driving habits and the environment. The car is equipped with brakes on some sense line when worn to be displayed on the instrument prompt replacement of brake pads; and some are not equipped with brakes not rattling prices sensor line when worn to the limit, when the brakes metal reed contact with brake pads and brake discs on the issue "creak" metal wailing sound, in order to remind the replacement brake pads using a simple method to check whether the brake shoes and brake discs thin, can use a small flashlight to observe inspection, when inspection found black brake shoe friction material wear faster system with not a car brakes factory, when the brake disc surface has been worn to a depth of 1 mm or more, it must be replaced. Among the real-life situation often is: a brakes on a car can use 50000 or 60000km, but probably only be used on another vehicle 25000km must be replaced. The frequency of vehicles parked on the road and the trip is an important factor, in general brakes, long roads in the city car of its brake pads replacement cycle is significantly shorter than the long-term highway vehicles, driving on mountain road The ratio of short flat road, trucks off than light rail replacement cycle is short. So, in fact, no "authority" can say clearly brakes in the end be able to use long, only one thing is sure - should always check the brake pads wear. Under normal circumstances when the car traveled 100,000 kilometers best clutch and brakes the car's update Okay, so the car will give new vitality to improve the car's driving performance. Brakes are consumables in the use of will gradually wear, when worn to the limit position must be changed, otherwise it will reduce the braking effect, even cause accidents. Brake pads for passenger cars, the Chi Heng Auto Parts (online consultation), brakes Ltd. provided by Linyi Chi auto parts. Linyi Chi Heng Auto Parts Co., Ltd. (www.zxqcpj. China) (www.zxqcpj. China) Shandong Linyi, brake shoes, sheets leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. Chi-line auto parts leaders in the staff warmly welcome all inquiries negotiations to create the Chi Heng Auto Parts better future.