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


Bearing No. 47T564029A

Specification data (main dimensions, etc.)

d(mm)280
D(mm)395
T(mm)288
W(mm)288
r(min.)(mm)4
r1(min.)(mm)2
Basic load ratings : Cr(kN)3090
Basic load ratings : C0r(kN)6900
Fatigue load limit : Cu(kN)702
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)303 mm
Da(max.)(mm)377 mm
Da(max.)(mm)363 mm
S(min.)(mm)8 mm
ra(max.)(mm)3 mm
rb(max.)(mm)2 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)110 kg
JTEKT

2026/07/19