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Brake rotors are essential automotive components designed to stop or slow down a vehicle. They are flat, circular discs attached to the wheel hub and clamped by brake pads when the brakes are applied. As the name suggests, they rotate along with the wheels. Brake rotors convert kinetic energy into thermal energy through friction generated between the brake pads and the rotor surface. This heat dissipation enables the vehicle to decelerate or come to a complete stop safely. They are available in various materials like cast iron, ceramic, and carbon-ceramic, each having unique properties for specific applications. High-performance vehicles often use cross-drilled or slotted rotors for better cooling and improved braking efficiency. Brake rotors must be regularly inspected, maintained, and replaced when worn out to ensure optimal brake performance and safety on the road.