... 2.Rigid big 3.ISO9001:2008 certificate 4.High Precision Thrust Roller Bearings Brand:FAG,IKO,INA,KOYO, ... NSK,NTN,SKF,ect. Features: 1.high precision, high speed, long life, high reliability, heavy load andhigh temperature resistance2.Bearing ... material: vacuum degassed, high carbon, chromium bearing steel3. Quality Standard :ISO certificated. ...