In the precision use of bearings, maintenance and care are crucial links. Regularly checking the lubrication status of bearings can effectively extend their service life. The selection of lubricating oil or grease should be reasonably matched according to the working environment and bearing type to ensure that the bearing can run smoothly under high load or high speed. In addition, external factors such as ambient temperature, humidity and dust will also affect the performance of bearings, so the working environment should be kept clean and dry as much as possible during use. Regularly clean the debris on the surface and surrounding of the bearing to prevent pollutants from entering the inside of the bearing, thereby reducing wear and failure. In addition, monitoring the operating status of the bearing, such as temperature, vibration, etc., can timely discover potential problems and take corresponding measures to prevent small problems from evolving into major failures. In short, only by paying attention to details in daily use and performing scientific and reasonable maintenance can we ensure that the bearings can operate stably under high-precision and high-efficiency working conditions and exert their maximum efficiency.