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


Bearing No. 47254

Specification data (main dimensions, etc.)

d(mm)270
D(mm)410
T(mm)222
W(mm)222
r(min.)(mm)4
r1(min.)(mm)5
Basic load ratings : Cr(kN)2420
Basic load ratings : C0r(kN)4380
Fatigue load limit : Cu(kN)474
Axial load factors : Y2(mm)2.51
Axial load factors : Y33.74
Axial load factors : Y02.45
Constant e0.27

Mounting dimensions,weight (reference)

da(min.)(mm)308 mm
Da(max.)(mm)392 mm
Da(max.)(mm)372 mm
S(min.)(mm)6.5 mm
ra(max.)(mm)3 mm
rb(max.)(mm)4 mm
Axial load factors : Y2(mm)2.51 mm
Axial load factors : Y33.74
Axial load factors : Y02.45
Constant e0.27
Mass(Refer.)(kg)100 kg
JTEKT

2026/07/19