Electrically insulated bearing,deep groove ball bearing (steel cage /brass cage/bakelite cage),deep groove ball hybrid ceramic bearing,cylindrical roller bearing, spherical roller bearing, tapered roller bearing etc. lisa(at)jxkjzc(dot)com, skype, lisa.bearings. Wechat: chenchangli2012, CELL +86 153 1415 6007 (Also for whatsapp and viber)