High-precision deep groove ball bearing 6018Z,6018ZZ,6018RS,6018-2RS High-precision deep groove ball bearing 6018Z, 6018ZZ, 6018RS, 6018-2RS 1.high precision 2.high quality with reasonable price 3.long life 604 605 606 607 608 609 6000 6001 6002 6003 6004 6005 6006 6007 6008 6009 6010 6011 6012 6013 6014 6015 6016 6017 6018 2 series series 604,605,6214,6992 ,etc Number of row Single row or double row