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


Bearing No. 47T645038

Specification data (main dimensions, etc.)

d(mm)320
D(mm)500
T(mm)380
W(mm)380
r(min.)(mm)4
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)5980
Basic load ratings : C0r(kN)11900
Fatigue load limit : Cu(kN)1180
Axial load factors : Y2(mm)2.03
Axial load factors : Y33.02
Axial load factors : Y01.98
Constant e0.33

Mounting dimensions,weight (reference)

da(min.)(mm)363 mm
Da(max.)(mm)482 mm
Da(max.)(mm)454 mm
S(min.)(mm)11.5 mm
ra(max.)(mm)3 mm
rb(max.)(mm)1.5 mm
Axial load factors : Y2(mm)2.03 mm
Axial load factors : Y33.02
Axial load factors : Y01.98
Constant e0.33
Mass(Refer.)(kg)284 kg
JTEKT

2026/07/19