spherical plane bearing 2.GE...ES,GEZ...ES,GEEW....ES,GAC....S/ ... ...ES/K Series. 3.High rotation speed, low noise, spherical plane bearingUndertakes Boundless Driving Force!Our advantage:1.Technique and quality ... also use high quality of grease.Mode of our pillow blocks: UCP,UCPA,SAPA,SBP,UKP,UCPA,UCPA,UCHA,UCPW,UCPH ...