1. When you press the brake pedal, it activates the master cylinder, which in turn generates hydraulic pressure.
2. The hydraulic pressure is transmitted through brake lines to the brake calipers located near each wheel.
3. Inside the brake calipers, the hydraulic pressure pushes the brake pads against the brake rotor, which is attached to the wheel hub.
4. The friction generated between the brake pads and the spinning rotor creates a resistance, causing the rotor and the wheel connected to it to slow down or stop.
5. As the brake pads press against the rotor, they convert kinetic energy (the energy of motion) into thermal energy (heat). This heat is dissipated through the brake rotors and the surrounding components.
6. When you release the brake pedal, the brake pads retract from the rotor, allowing the wheel to spin freely again.
The brake rotor acts as a heat sink, absorbing and dissipating the heat generated during braking. It also provides a smooth and consistent surface for the brake pads to make contact with, ensuring effective braking performance.
Brake rotors are typically made of cast iron or steel and are designed to withstand high temperatures and repeated friction. Over time, brake rotors can wear out and become thinner or develop uneven surfaces, which can affect braking performance. Regular inspection and replacement of brake rotors are crucial to maintain optimal braking efficiency and safety.
Additionally, some modern vehicles may incorporate ventilated brake rotors. Ventilated rotors have internal vanes or channels that allow for better airflow and heat dissipation, further enhancing braking performance.
