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The difference between disc and drum brake pads

2023-10-17

Brake is one of the important components of automobile safety, and one of the key components of brake system is brake pad. In the automobile braking system, the choice of brake pad is very important, because it will directly affect the braking effect of the vehicle, wear degree, and safety. When choosing brake pads, the most common choice is disc brake pads and drum brake pads, so what is the difference between these two brake pads? How should you choose?

First, let's look at the structure of disc brake pads and drum brake pads. Disc brake pads are flat-shaped parts made of metal that attach directly to the brake discs next to the wheels. The drum brake pad is installed in the form of a cylinder next to the wheel, because its internal is closed, so the heat dissipation performance is poor.

Secondly, disc brake pads and drum brake pads work differently. During the operation of disc brake pads, the brake stops the disc from spinning, while the brake pad contacts the surface of the disc and slows or stops it by friction. In the drum brake pad, the brake disc inside the drum will be subjected to brake pressure, so that it is close to the inner wall of the brake drum, and in the way of friction to slow down or stop the wheel.

Another important difference is their heat dissipation. Because disc brake pads need to convert friction energy into heat energy during braking, better heat dissipation performance is needed to avoid deformation or failure of brake pads. Disc pads dissipate more heat than drum pads because they are designed to allow air to enter the surface more easily, thus accelerating heat dissipation.

So how to choose disc brake pads and drum brake pads? First, you need to identify the vehicle's braking system type to determine what type of brake pads should be used. If the vehicle uses disc brake system, then the natural choice should be disc brake pads; If a drum brake system is used, drum brake pads should be selected. In addition, brake pads should be selected according to the model and brand of the vehicle to ensure that the size and performance of the brake pads meet the requirements of the vehicle.

In addition, disc brake pads are more reliable than drum pads at high speeds. Because of the better heat dissipation performance of disc brake pads, so in the case of frequent braking at high speed, disc brake pads can dissipate heat faster, not because the temperature is too high and lead to a decrease in braking effect.

The heat dissipation performance of drum brake pad is relatively poor, so it is easy to cause poor braking effect due to high temperature when driving at high speed.

Then, in the selection of disc brake pads and drum brake pads, should be selected according to the actual situation of the vehicle. If it is a large heavy duty vehicle or a vehicle that needs to travel frequently at high speed, it is recommended to choose disc brake pads; If it is a small urban mobility scooter or daily use of vehicles, you can choose drum brake pads.

In addition, when choosing brake pads, it is also necessary to pay attention to such factors as the material, brand and price of brake pads. High quality brake pad materials can improve the service life and braking effect of brake pads, and the brand and price can be used as a reference factor.

In short, disc brake pads and drum brake pads each have advantages and disadvantages, should be selected according to the actual situation of the vehicle. In the selection of brake pads, it is also necessary to pay attention to the material, brand and price of brake pads and other factors, to ensure the selection of the right brake pads, to ensure driving safety.

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