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


Bearing No. 47T725428

Specification data (main dimensions, etc.)

d(mm)360
D(mm)540
T(mm)280
W(mm)280
r(min.)(mm)5
r1(min.)(mm)6
Basic load ratings : Cr(kN)4040
Basic load ratings : C0r(kN)8000
Fatigue load limit : Cu(kN)777
Axial load factors : Y2(mm)1.24
Axial load factors : Y31.84
Axial load factors : Y01.21
Constant e0.55

Mounting dimensions,weight (reference)

da(min.)(mm)402 mm
Da(max.)(mm)518 mm
Da(max.)(mm)489 mm
S(min.)(mm)10.5 mm
ra(max.)(mm)4 mm
rb(max.)(mm)5 mm
Axial load factors : Y2(mm)1.24 mm
Axial load factors : Y31.84
Axial load factors : Y01.21
Constant e0.55
Mass(Refer.)(kg)224 kg
JTEKT

2026/07/19