Rubber is the basic material of tire, and the highest temperature it can withstand is about 145℃. Once this temperature is exceeded, the rubber will melt and the tire will burst. Because the rim is in direct contact with the tire, experience shows that the temperature of the rim should not exceed 100℃ and the temperature of the Yantai brake drum corresponding to the bus should not exceed 200℃.

2, can not cause grease to melt.

Penglai Wanshou believes that whether the grease will melt mainly depends on two aspects, on the one hand, it depends on the highest temperature that the grease can withstand, and on the other hand, it depends on the temperature of the wheel hub. Hub bearings are lubricated with lithium-based grease, which can withstand the highest temperature of about 120 ~ 150℃.

3. The friction coefficient of the brake pad cannot be reduced too much.

If the friction coefficient of the brake pad decreases, the braking force of the car will decrease, which is called thermal recession. The thermal attenuation characteristics of brake pads are mainly considered from two aspects: one is to select qualified brake pads, and the other is to limit the temperature of brakes. It is suggested to use brake pads from regular manufacturers to avoid having too great influence on the performance of Yantai automobile brake drum.

To sum up, the temperature of Yantai brake drum is below 150℃, which belongs to the normal use range; When the temperature is 150℃ ~ 200℃, measures should be taken. If it is higher than 200℃, measures must be taken.