Disc brakes are mainly used in cars, but we can also find them on motorbikes or trains. The working part of the disc brake is the disc, which is braked by the pressure of the brake pads.

When the brake pedal is pressed, pressure builds up in the brake system, and brake fluid starts to push the brake piston, which presses on the brake pads. This creates friction and, thus, a braking force that stops or slows down the vehicle.