What are the two main types of wheel brakes?

[TannerLynn]

Wheel brakes are divided into drum brakes and disc brakes. The comparison between disc brakes and drum brakes is as follows: 1. Drum brakes are cheaper than disc brakes, and disc brakes are not very suitable for some special environments, such as areas with a lot of sand and gravel, where the brake discs can be easily damaged; 2. Disc brakes have excellent heat dissipation performance, and the braking system responds quickly, allowing for high-frequency braking actions. Compared to drum brakes, disc brakes have a simpler structure and are easier to maintain; 3. Drum brakes have much poorer heat dissipation, and their braking force stability is insufficient, leading to significant variations in braking performance on different road surfaces, making them harder to control. Continuous braking may cause brake fade and failure; 4. The friction area between the brake pads and brake discs in disc brakes is smaller than that in drum brakes, resulting in less braking force. Additionally, the brake pads wear out more quickly and require more frequent replacement.