Advantages and disadvantages of drum brakes
advantage
1. It has the function of automatic braking, so that the brake system can use lower oil pressure or use a brake drum that is much smaller in diameter than the brake disc.
2. The installation of the hand brake mechanism is easy. In some models with rear wheel brakes, the brake mechanism of the drum brakes is installed in the center of the brake disc.
3. The processing and composition of the parts is relatively simple, and the manufacturing cost is relatively low.
Disadvantage
1. The brake drum of the drum brake will increase in diameter after being heated, and the stroke of stepping on the brake pedal is increased, and the brake reaction is less likely to occur than expected. Therefore, when driving a vehicle with a drum brake, it is necessary to avoid the occurrence of thermal degradation of the brake pad due to high temperature caused by continuous braking.
2. The braking system reacts slowly, and the braking force of the brake is less controllable, which is not conducive to high-frequency braking action.
3. Many complicated parts are constructed, and the brake clearance must be adjusted to make maintenance difficult.