A ROTOR BRAKE for wind turbines is a hydraulic brake that generates braking force through hydraulic pressure. It is located on the rotor shaft, between the gearbox and the generator, and is primarily used as a safety brake during emergency stops in high wind conditions and to perform maintenance safely. ABS supplies different types of rotor brakes for wind turbines depending on their application and for the main manufacturers, guaranteeing maximum reliability through friction and resistance tests to determine the uniformity of the braking characteristics, and finite element analysis for verify structural safety.