Disc brake vs drum brake, the old driver will tell you which one is more practical
Many car owners pay special attention to the safety performance of their cars when choosing a car. For example, if a car does not have GPS or side airbags, it may be directly eliminated. In most cases, some car owners may choose to give up on drum brakes no matter how much they like this car. Is drum brakes really so scary?
Let's take a look first
What is it
There is a brake drum installed at the tire brake, which rotates at the same speed as the tire. When braking, the brake pads will actively expand, causing severe friction with the inner surface of the brake drum to generate braking force, thereby producing the braking effect.
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This drum brake has many advantages. Firstly, the installation cost is very low, and many car companies like to use it. Its braking ability is much stronger than the disc brake, and it can complete braking in a shorter time. Since it has so many advantages, why do many car owners generally consider it unsafe?
Because the drum brake will have a phenomenon of thermal attenuation. In short, when it encounters frequent braking, its braking effect will be greatly reduced, thus extending the Braking distance, causing the driver to misjudge the Braking distance, thus causing an accident.