1. Advantages of disc brakes
1. Good heat dissipation performance: the heat dissipation performance of disc brakes is better than that of drum brakes. Since the disc brake does not cause too much heat accumulation during braking, there will not be too much heat accumulation during long-term braking, thereby ensuring the stability of the brake.
2. Strong braking force: Disc brakes use the principle of sliding friction when braking, so they have advantages in braking force. They are suitable for high-speed vehicles and have a short braking distance.
3. Easy maintenance: The disassembly and replacement of the disc brake is relatively easy. To replace the brake pad, only a few fixing screws need to be removed, and the whole brake does not need to be disassembled.
4. The relative position of the wheels remains unchanged: the disc brake is connected to the hub. When braking, the brake disc and the hub stop together, while the tires keep moving, and the vehicle can stop quickly.
2. Disadvantages of disc brakes
1. High cost: The production process of disc brakes is more complicated than that of drum brakes, and there are more brake discs in the structure, so the cost is slightly higher than that of drum brakes.
2. Poor braking effect in rainy weather: If the vehicle is driven in heavy rain and the vehicle is in liquid, it is not conducive to the heat dissipation of the brake, and the braking effect of the disc brake will be reduced.
3. Maintenance is more complicated: If the thread of the disc wheel shaft is worn out, it needs to be replaced with a new disc brake, so the maintenance is more complicated.
3. Advantages of drum brakes
1. More durable: The material of the drum brake is stronger, the thickness of the brake pad is thicker, and the drum brake is not easily affected by water or other external substances, so it is more durable.
2. Stable effect: Due to the structural characteristics of the drum brake, its braking force is relatively stable, regardless of the speed of the vehicle, and the braking distance is generally relatively short, which can adapt to most road conditions.
3. Simple maintenance: The maintenance of drum brakes is relatively simple, and it is relatively easy to replace accessories such as cylinders and brake pads, and the replacement cost is also low.
Fourth, the disadvantages of drum brakes
1. Poor heat dissipation performance: During the braking process, the drum brake will generate a lot of heat, and the contact area between the drum brake and the hub is small, and the heat dissipation is relatively slow.
2. Weak braking force: Compared with disc brakes, the braking force of drum brakes is relatively weak, which is not suitable for the braking needs of high-speed vehicles.
3. The position of the wheel is variable: due to the small contact area between the drum brake and the tire, it is easy to cause the position of the wheel to shift during braking, resulting in inconsistent braking effects of the wheels at different angles.
