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


Bearing No. 47T664430

Specification data (main dimensions, etc.)

d(mm)330.200
D(mm)444.500
T(mm)301.625
W(mm)301.625
r(min.)(mm)3.2
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)3800
Basic load ratings : C0r(kN)9260
Fatigue load limit : Cu(kN)920
Axial load factors : Y2(mm)2.55
Axial load factors : Y33.80
Axial load factors : Y02.50
Constant e0.26

Mounting dimensions,weight (reference)

da(min.)(mm)357 mm
Da(max.)(mm)430 mm
Da(max.)(mm)414 mm
S(min.)(mm)10 mm
ra(max.)(mm)3.2 mm
rb(max.)(mm)3.2 mm
Axial load factors : Y2(mm)2.55 mm
Axial load factors : Y33.80
Axial load factors : Y02.50
Constant e0.26
Mass(Refer.)(kg)134 kg
JTEKT

2026/07/19