High Speed Medical Dental Drill Ball Bearing Sr144 Deep Groove

This type of bearings for dental special bearings, inner and outer ring with refining stainless steel (9 cr18mo) materials, non-metallic hard ball with silicon nitride ceramic (Si, N,) materials, has good wear resistance; Cage with high strength, low wear resistance and self lubricating Trolon materials or the performance of 80 ~ 120 phenolic fabric bakelite material, bearing in 200 ~ 250 kpa air pressure, rotating speed of up to 350000 ~ 450000 RPM. Under the condition of normal use, the working life of the bearing for more than six months.High-speed dental special bearings, manufacturing precision accords with national standard GB/T307.1-2005 P4 level requirement, can apply to different type dental at home and abroad. The company's high-speed dental special bearings can also be applied in high speed grinding machine.