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Is it better to use disc brakes or drum brakes for car brake discs?
2022-08-09 08:55
Generally, when buying a car, in addition to looking at the appearance, interior, and performance of the car, there is another group of people who care about what the brake disc looks like. At present, in the automobile market, the common brake discs are disc brakes and drum brakes, but most people like disc brakes very much. I think drum brakes are like brake discs made by manufacturers cutting corners, but this is not the case. Next, the editor will tell you about the knowledge of automobile brake discs.
First, let's first understand the working principle of disc brakes. Disc brakes are also called disc brakes. When the driver steps on the brakes, pressure is applied by the brake booster pump, which pushes the brake calipers to clamp the brake pads and rub against the brake discs, thereby achieving the effect of braking. Then let's talk about the working principle of drum brake. Drum brakes are drum brakes that are installed on the wheels to rotate with the wheels. The drum is equipped with brake pads. Pressure is also applied by the booster pump. However, it creates friction between the brake pads in the brake drum and the brake drum. To brake.Furthermore, let’s say that some people think that “drum brakes are brake discs that manufacturers cut corners to manufacture for export” is true or not, is there any factual basis? After all, there is not only one statement about everything in the world. The same is true for car brake discs. In fact, disc brakes and drum brakes each have their own advantages. Those manufacturers selling cars with drum brakes are not cutting corners.
Let's talk about disc brakes first. The advantage of disc brakes lies in their good heat dissipation performance. The reason is very simple. Because the disc brakes are always exposed, even if the brakes are used for a long time, the problem of heating of the brake pads will quickly dissipate. Of course, by saying this, I don't mean to support the majority of my friends who often step on the brakes when driving. Of course, the ventilation plate has holes, so the heat dissipation performance is better. But everything is good and bad. In addition to the advantages and disadvantages, it is not without. The disadvantage of disc brakes is that the cost is relatively high. You can observe that generally cheap cars do not use disc brakes for both front and rear wheels. In addition, the braking force of disc brakes is low.
Let's talk about drum brakes again. The advantages of drum brakes are opposite to those of disc brakes, with low cost and high braking force. There is durability. On the contrary, the shortcoming is also obvious, that is, the poor heat dissipation of the drum brake. Due to the large braking force, drum brakes rather than disc brakes are used for large trucks. Also due to poor heat dissipation, the driver needs to add water to the brake pads to cool down.
In fact, the difference between drum brakes and disc brakes lies in their appearance. Drum brakes look good without disc brakes, which affects the overall appearance of the body. However, there are fewer and fewer drum brake models on the market.
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