Dental bearings are also called dental drill bearings or dental turbine bearings,they are referred high speed miniature bearings used in dental turbine. The inner ring and outer rings of dental bearings are made of refined 440 stainless steel, and the balls are made of high precision stainless steel(440) or ceramic(Si3N4) at request, and the cages are made of reinforced phenolic (TORLON) or bakelite (PEEK). The precision tolerance of dental bearings is ABEC-7(P4). The rotation speed of dental bearings can be 350000-450000 rpm under the air pressure of 200-250kpa,so the dental bearings used in required with very high quality. Zhangzhou Runstar Bearings Manufacturing Co.;Ltd is a professional dental drill bearings manufacturer, we have been committed to the R & D and production of high-precision dental bearings(dental drill bearings) since 2007. The dental bearings (dental drill bearins)from Runstar have the characteristics of high precision, high speed, low noise, low vibration, high temperature resistance, corrosion resistance, long life and environmental protection, which are deeply loved and recognized by users.