... -380mm. 2) High precision and long life. 3) 20 years manufacturer.. 4) ISO9001:2000 Certificate. Ball bearing :1) Good quality, ... bearingBrandHQBTypeDeep groove ball bearing,self-aligning ball bearing,thrust ball bearing,Angular contact ball bearing,four point contact ball slewing bearing,Auto bearing,motor bearing,engine bearing,agriculture bearing,construction bearing,heavy-duty bearing. ...