... ABEC1, ABEC3, ABEC5 3. Z3,Z4 Deep Groove Ball Bearings, Deep Groove Ball Bearings) is the most common ... ball and a set of cage structure, deep groove ball bearing type code is 6. Deep groove ball ... performance, can bear the larger axial load. Deep groove ball bearing friction coefficient is very small, ... a lot of high-speed operation conditions, deep groove ball bearing ratio thrust ball bearing is ...