What are the differences between disc brakes and drum brakes?

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Compared to drum brakes, disc brakes have a simpler structure and are easier to maintain. When achieving the same braking torque, the differences between disc and drum brakes are as follows: 1. The diameter of the brake drum in a drum brake system can be much smaller than that of the brake disc in a disc brake system. Therefore, large vehicles designed for heavy loads, which require strong braking force, can only be equipped with drum brakes within the limited space of the wheel rim. 2. Disc brakes have better heat dissipation than drum brakes, making them less prone to brake fade and failure during continuous braking. The disc brake system responds quickly and can perform high-frequency braking actions, making it more suitable for ABS system requirements. Disc brakes do not have the self-energizing effect of drum brakes, resulting in more balanced braking force between the left and right wheels.