A ring magnet is a permanent magnet with a central through-hole, shaped like a circular ring, and can be magnetized axially or radially. Our company uses high-grade sintered neodymium iron boron (NdFeB) material, which is made through precision inner slicing, centerless grinding, electroplating, and multi-stage surface treatment processes. It has high magnetic energy product, high coercivity, and excellent temperature stability, and is widely used in fields such as motors, sensors, audio, medical and industrial automation. Typical applications: Brushless DC motor (BLDC) rotor, servo motor magnetic ring; Unmanned aerial vehicle/model motor outer rotor; Hall/magnetic encoder magnetic ring (multipole magnetization, with 2-256 poles); Audio speaker T-Yoke magnetic circuit; Magnetic coupling, magnetic levitation bearing.