spherical flange bearing 2.GE...ES,GEZ...ES,GEEW....ES,GAC....S/K,GE...ES/K Series. 3.High ... rotation speed, low noise, spherical flange bearingUndertakes Boundless Driving Force! ... ,UKP,UCPA,UCPA,UCHA,UCPW,UCPH 200-300 Series.HistoryWe have more than 22 years in the ... ,GEEW....ES,GAC....S/K,GE...ES/K Series. ColorGreen,blue or according to customersMaterialGCr15 or GCr15SiMn ...