... 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 main products ... -standard and special bearings.(1)Bore diameter:3mm-50mm(2)Bearing range:60series:606,607.608,6000,6001,6002,6003,6004 ...