6300 series (634 - 6312) miniature and deep groove ball bearings are available in various specifica 6300 series (634 - 6312) miniature and deep groove ball bearings are available in various specifications. Quality level: Z1V1, Z2V2, Z3V3 Accuracy grade: P0, P6, P5, P4, P2 Min Order Quantity:1000pcs Payment Term:TT D/P L/C