The Lingfan SS685, SS693, and SS6700 series stainless steel miniature deep groove ball bearings, with their corrosion resistance, high precision, low noise, ease of cleaning, and high temperature disinfection resistance, have become core transmission components in the medical device field. They are widely used in scenarios such as dental handpieces, surgical instruments, medical pumps, centrifuges, monitoring equipment, diagnostic instruments, and micro-power devices. This series utilizes medical-grade stainless steel material, which can withstand high temperature and high pressure sterilization and humid cleaning environments. It operates without rust or dust shedding over a long period, meeting the stringent requirements of medical equipment for biocompatibility, cleanliness, and operational stability. It remains stable and reliable under high-speed, light-load, and precision rotation conditions, providing key support for the precise control and safe use of diagnostic and treatment equipment.