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


Bearing No. 47T604729B

Specification data (main dimensions, etc.)

d(mm)300
D(mm)470
T(mm)292
W(mm)292
r(min.)(mm)4
r1(min.)(mm)SP
Basic load ratings : Cr(kN)4290
Basic load ratings : C0r(kN)7870
Fatigue load limit : Cu(kN)815
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)341 mm
Da(max.)(mm)452 mm
Da(max.)(mm)428 mm
S(min.)(mm)8.5 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)193 kg
JTEKT

2026/07/23