The application fields of bearings are wide and diverse, and they have penetrated almost every aspect of our lives. In the industrial field, bearings are indispensable components of mechanical equipment and are widely used in motors, gearboxes, pumps, fans and other equipment to ensure the efficient operation of these equipment. In the automotive industry, bearings play a vital role in helping cars reduce friction and improve fuel efficiency during driving, while also ensuring the smoothness and safety of driving. In addition, bearings also play a key role in transportation vehicles such as aerospace, railways, and ships, bearing huge loads and complex working environments. In the field of household appliances, such as washing machines, refrigerators, and air conditioners, the application of bearings improves the durability and quietness of the equipment. With the continuous advancement of science and technology, bearing materials and designs are also constantly innovating. For example, the use of advanced composite materials and nanotechnology has significantly improved the bearing's load capacity, wear resistance, and service life. In the future, with the development of intelligent manufacturing and automation, the application of bearings will be more intelligent, promoting the continuous upgrading and development of related industries.