... :100mm~1200mm 4.ISO9001:2000 5.Precision level:P0,P3,P4,P5,P6 all kinds of bearing: taper roller bearings, cylindrical roller bearings ... roller bearings, spherical roller bearing.Bore diameter :100mm-1200mmPrecision level : P4,P5,P6,P0Sealing form: Open, Z, ZZ, RS,2RS, 2RZMaterial diameter: 100mm ...