For newcomers who just bought cars, they may not know much about the parts of cars. Today Xiaobian will introduce drum brake discs to you.

    Drum brakes can be regarded as the earliest brake systems applied to vehicles. The so-called "drum" is the brake drum, which is mounted on wheels and rotates along with the wheels. The brake drum is equipped with a brake pad. When braking, the brake piston pushes the brake disc and the brake drum outwards to achieve the braking effect

    Drum brake is simple in structure and low in manufacturing cost. Most of them are applied to rear wheels of vehicles. The biggest drawback of drum brakes is poor heat dissipation, because the brake mechanism is enclosed in the brake drum, so after continuous braking, the heat can not be quickly dispersed. As the brake action of the drum brakes is the "top" of the brake disc, the contact surface of the brake drum becomes smaller after the heat expansion, which affects the braking efficiency.