... BearingMaterialGCr15 (Chrome)Bore Size15-150mmOutside Diameter25-270mmModel Number30202Precision RatingP 0~P 5Sales TypeZZ, 2RSNumber of RowSingle RowBrande NameASAHI,ASK,FAG,NACHI ... : Z1,Z2,Z3,Z4; Vibration level: V1,V2,V3,V4 5. Innder windage code: C0,C2,C3,C4,C5 6. Precision ...