... design, 3.original bearing, 4.steel material JAPAN NSK DEEP GROOVE BALL BEARINGS1.low noise, long life, 2 ... .profession design, 3.original bearing, 4.steel materialJapan NSK Deep Groove Ball BearingOur main products include deep groove ... 626,627,628,629,6200,6201,6202,6203,6204,6205,6206,6207,6208,6209,6210,6211,6212 63series: ... ,16002,16003,16005,16007(3)Sealing form:OPEN,Z,ZZ,V,VV,DU,DDU,N(4)Material: ...