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


Bearing No. 47T685228

Specification data (main dimensions, etc.)

d(mm)340
D(mm)520
T(mm)278
W(mm)278
r(min.)(mm)5
r1(min.)(mm)6
Basic load ratings : Cr(kN)4350
Basic load ratings : C0r(kN)8110
Fatigue load limit : Cu(kN)824
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)384 mm
Da(max.)(mm)498 mm
Da(max.)(mm)473 mm
S(min.)(mm)9 mm
ra(max.)(mm)4 mm
rb(max.)(mm)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)212 kg
JTEKT

2026/07/21