What is the principle of disc brakes?

[DeMariana]

The principle of disc brakes is: a braking device that uses stationary brake pads to clamp the rotating brake disc (attached to the wheel) to generate friction, thereby reducing the wheel's rotation speed. When the brake pedal is pressed, the piston in the master cylinder is pushed, and the pressure is transmitted through the brake fluid to the piston in the brake caliper's slave cylinder. Upon receiving pressure, the slave cylinder piston moves outward, pushing the brake pads to clamp the brake disc, causing friction between the pads and the disc. Disc brakes mainly come in two types: caliper disc brakes and full disc brakes. In caliper disc brakes, the rotating element is the brake disc, and the fixed element is the brake caliper. Caliper disc brakes are further divided into fixed caliper disc brakes and floating caliper disc brakes.