tapered roller bearing 1) Range of dimensions: d, 160mm ~ 1060mm D, 290mm ~ 1500mm 2) Row: single, two, four 3) Precision: P0, P6, P5, P4 4) Raw material: GCr15SiMn or G20Cr2Ni4A 5) The cage material: Steel 6) Clearance: C1, C2, C0, C3, C4 single-row cylinderical roller bearing four types:N;NU;NJ;NUP d=180mm-950mm D=280mm-1250mm B=46mm-224mm double-row cylinderical roller bearing two types:NN;NNU d=260mm-670mm D=400mm-980mm B=104mm-280mm four-row cylinderical roller bearing d=320mm-950mm D=480mm-1300mm B=290mm-850mm