... ball bearing,to be perfectly usable for high-speed dental turbine handpiece Dental bearing/dental bearing/Dental ... Ceramic balls or stainless steel balls*Rotating speed 350,000-450,000 rpm under air-pressure ... resistant*Corrosion resistant, High-temperature resistant*Perfectly usable for many brands of High-speed dental turbing handpiece, such ... 2.787.938 * 3.175 * 2.38 High Speed Dental Bearing