... -450.000rpm under air-pressure of 200-250Kpa High-speed Dental Bearing of high precision level P4 (ABEC 7),usable for ... various brands of high-speed dental turbine handpieces High-speed Dental Bearing DimensionNo.dDB13,175 mm6,350 mm2,380 ... resistant for disinfection ยท Usable for many brands of High-speed dental drills, such as KaVo, NSK, W&H, Bien Air, Midwest, Star ...