... BALL BEARINGS 1.low noise, long life, 2.profession 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 ... ,6908,6909,6910 16000series:16001,16002,16003,16005,16007(3)Sealing form:OPEN,Z,ZZ,V,VV,DU,DDU,N(4)Material ...