Electrostatic bearings are a type of bearing that utilizes electric field force to achieve shaft suspension. They have a compact structure and no mechanical friction, and do not require lubrication during operation, resulting in extremely low energy consumption. This bearing can operate in environments with a vacuum degree higher than 0.133mPa, generating less harmful torque than magnetic bearings. However, due to the need for strong electric field strength, it is mainly used in micro instruments such as gyroscopes and special scenarios. According to the control method, it can be divided into active type, passive type, and joint type, with geometric forms including planar thrust, cylindrical radial, spherical, and conical bearings The research field has developed axial electrostatic bearings with integrated nickel microstructures of polymethyl methacrylate through advanced LIGA technology, effectively alleviating the sliding friction problem of micro motors and expanding the potential for applications in liquid environments . Another liquid ring bearing design utilizes liquid surface tension to achieve self alignment and impact resistance, reducing static friction while establishing electrical pathways for rotating components, verifying the feasibility of a three-phase electrostatic drive platform . The combination of humanistic bearings with cold rolling forming technology and innovative design of carbon fiber retainers, optimized parameters through Romax simulation, improves fatigue resistance and load-bearing stability, and adapts to the requirements of new energy vehicle electric drive systems
