Magnetic bearings are advanced bearings that use magnetic fields to levitate and support a rotating shaft without physical contact. They eliminate friction by suspending the shaft using electromagnetic forces, enabling high-speed rotation with minimal wear and maintenance. Magnetic bearings are classified into **active magnetic bearings (AMB)**, which use sensors and control systems, and **passive magnetic bearings**, which rely on permanent magnets. These bearings are widely used in applications requiring high precision and reliability, such as turbines, compressors, flywheels, and medical equipment. Magnetic bearings are valued for their ability to operate in extreme conditions, offer high efficiency, and eliminate the need for lubrication.