bearing,ball bearing,roller bearing,Deep groove ball bearing,China bearing,carbon steel bearing,cheap carbon bearing,bearing steel bearing,SKF,FAG,TIMKEN,NTN,NSK,IKO,KOYO,ZWZ,LYC,HRB Deep Groove Ball Bearing Miniature bearings: Inner diameter 2mm-10mm, 3/32"-1/2" and flanged types 600 series: 603~609 620 series: 623~629 630 series: 634~639 670 series/MR series: 673~678 / MR63~MR148 680 series: 683~689 690 series: 693~699 Deep groove ball bearings: 6000 series: 6000-6015 6200 series: 6200-6215 6300 series: 6300-6315 6400 series: 6403-6415 Extra-thin section ball bearings: 6700 series: 6700-6707 6800 series: 6800-6818 6900 series: 6900-6920 Light-ring ball bearings: 16000 series: 16000-16028 Heavy-ring ball bearings: 62000 series: 62000~62004 62200 series: 62200~62203 62300 series: 63000 series: 63000~63004 63200 series: 63200~63203 63800 series: 63800~63803 Inch series: R series:RLS series:RMS series:1600 series: Explanation: Z--represents that one-side of the deep groove ball bearing is mental dust cover ZZ--represents that both sides are mental dust cover. RS--represents that one-side of the deep groove ball bearing is non-touch grommet ¡¡¡¡ 2RS--represents that both sides are non-touch grommet.¡¡¡¡ RZ--represents that one-side of the deep groove ball bearing is contact grommet, 2RS--represents that both sides are contact grommet.