JAPAN NSK DEEP GROOVE BALL BEARINGS 1.low noise, long life, 2.profession design ... BearingOur main products include deep groove ball bearings,miniature thin-wall bearings,and different types of low noise,non- ... standard and special bearings.(1)Bore diameter:3mm-50mm(2)Bearing range: ... 6705 68series:686,687,688,689,6800,6801,6802,6803,6804,6805,6806,6807,6808,6809,6810 69series:696 ...