... -7, P4 3.Long working life 4.High speed Dental handpiece bearingBearing feature:1.Material: AISI 440C, 9Cr18 stainless steel ... operation4.Weak acid-base resistant5.Anti-Corrosion,High-temperature resistant Application: For high-speed dental turbine handpiece, such as KAVO,NSK ... MIDWEST,STAR,FARO,ADEC,SIEMENS,LARES,etc. High speed dental handpiece bearing Structured DBD1C1 Shield Main Application I.D.O ...