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


Bearing No. 47T443023

Specification data (main dimensions, etc.)

d(mm)220
D(mm)300
T(mm)230
W(mm)230
r(min.)(mm)2.5
r1(min.)(mm)3
Basic load ratings : Cr(kN)1870
Basic load ratings : C0r(kN)4040
Fatigue load limit : Cu(kN)440
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)231 mm
Da(max.)(mm)288 mm
Da(max.)(mm)278 mm
S(min.)(mm)6.5 mm
ra(max.)(mm)2 mm
rb(max.)(mm)2.5 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)45.1 kg
JTEKT

2026/07/21