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


Bearing No. 47T886645

Specification data (main dimensions, etc.)

d(mm)440
D(mm)660
T(mm)450
W(mm)450
r(min.)(mm)5
r1(min.)(mm)2
Basic load ratings : Cr(kN)9370
Basic load ratings : C0r(kN)19000
Fatigue load limit : Cu(kN)1720
Axial load factors : Y2(mm)2.12
Axial load factors : Y33.15
Axial load factors : Y02.07
Constant e0.32

Mounting dimensions,weight (reference)

da(min.)(mm)489 mm
Da(max.)(mm)638 mm
Da(max.)(mm)610 mm
S(min.)(mm)9.5 mm
ra(max.)(mm)4 mm
rb(max.)(mm)2 mm
Axial load factors : Y2(mm)2.12 mm
Axial load factors : Y33.15
Axial load factors : Y02.07
Constant e0.32
Mass(Refer.)(kg)532 kg
JTEKT

2026/07/19