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


Bearing No. 47T644633

Specification data (main dimensions, etc.)

d(mm)320
D(mm)460
T(mm)325
W(mm)325
r(min.)(mm)4
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)4330
Basic load ratings : C0r(kN)9420
Fatigue load limit : Cu(kN)933
Axial load factors : Y2(mm)1.62
Axial load factors : Y32.42
Axial load factors : Y01.59
Constant e0.42

Mounting dimensions,weight (reference)

da(min.)(mm)349 mm
Da(max.)(mm)442 mm
Da(max.)(mm)424 mm
S(min.)(mm)10 mm
ra(max.)(mm)3 mm
rb(max.)(mm)2.5 mm
Axial load factors : Y2(mm)1.62 mm
Axial load factors : Y32.42
Axial load factors : Y01.59
Constant e0.42
Mass(Refer.)(kg)175 kg
JTEKT

2026/07/23