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


Bearing No. 47T553927

Specification data (main dimensions, etc.)

d(mm)276.225
D(mm)393.700
T(mm)269.878
W(mm)269.878
r(min.)(mm)6.4
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)2930
Basic load ratings : C0r(kN)5830
Fatigue load limit : Cu(kN)607
Axial load factors : Y2(mm)1.68
Axial load factors : Y32.50
Axial load factors : Y01.64
Constant e0.40

Mounting dimensions,weight (reference)

da(min.)(mm)299 mm
Da(max.)(mm)373 mm
Da(max.)(mm)363 mm
S(min.)(mm)4.5 mm
ra(max.)(mm)6.4 mm
rb(max.)(mm)1.6 mm
Axial load factors : Y2(mm)1.68 mm
Axial load factors : Y32.50
Axial load factors : Y01.64
Constant e0.40
Mass(Refer.)(kg)101 kg
JTEKT

2026/07/19