How do disc brakes work?

Disc brakes work by utilizing the principle of friction to slow down or stop the rotation of a wheel. When the brake pedal is pressed, hydraulic pressure is applied to the calipers. The calipers contain pistons that push the brake pads against the brake disc on both sides. The friction between the brake pads and the disc creates resistance, which slows down the rotation of the wheel.

Disc brakes work by utilizing the principle of friction to slow down or stop the rotation of a wheel. When the brake pedal is pressed, hydraulic pressure is applied to the calipers. The calipers contain pistons that push the brake pads against the brake disc on both sides. The friction between the brake pads and the disc creates resistance, which slows down the rotation of the wheel.

The brake disc is connected to the wheel or axle, and it is usually made of cast iron. Some high-performance vehicles may use carbon fiber or ceramic composite discs. The disc is designed to dissipate heat generated during braking to prevent brake fade.

Compared to drum brakes, disc brakes offer several advantages. They provide better stopping performance, as the disc is more readily cooled. They also recover more quickly from immersion, making them more effective in wet conditions. Additionally, disc brakes offer a better "feel" to the driver, as the braking force is always proportional to the pressure applied to the brake pedal.

Overall, disc brakes are the most commonly used form of brake for motor vehicles due to their superior performance and reliability.