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


Bearing No. 47T564131

Specification data (main dimensions, etc.)

d(mm)279.400
D(mm)410.000
T(mm)310.000
W(mm)310.000
r(min.)(mm)6.4
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)3350
Basic load ratings : C0r(kN)7290
Fatigue load limit : Cu(kN)745
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)308 mm
Da(max.)(mm)389 mm
Da(max.)(mm)374 mm
S(min.)(mm)8 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)140 kg
JTEKT

2026/07/07