Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings


Bearing No. 47280

Specification data (main dimensions, etc.)

d(mm)400
D(mm)600
T(mm)308
W(mm)308
r(min.)(mm)5
r1(min.)(mm)6
Basic load ratings : Cr(kN)5170
Basic load ratings : C0r(kN)9930
Fatigue load limit : Cu(kN)956
Axial load factors : Y2(mm)2.03
Axial load factors : Y33.02
Axial load factors : Y01.98
Constant e0.33

Mounting dimensions,weight (reference)

da(min.)(mm)452 mm
Da(max.)(mm)578 mm
Da(max.)(mm)548 mm
S(min.)(mm)9 mm
ra(max.)(mm)4 mm
rb(max.)(mm)5 mm
Axial load factors : Y2(mm)2.03 mm
Axial load factors : Y33.02
Axial load factors : Y01.98
Constant e0.33
Mass(Refer.)(kg)310 kg
JTEKT

2026/07/18