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 ... : 44 staffs responsible for quality management, including 3 senior engineers, 5 engineers and 36 quality control personnel. 100% inspection before shipment ...