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


Bearing No. 47T443326B

Specification data (main dimensions, etc.)

d(mm)220
D(mm)330
T(mm)260
W(mm)260
r(min.)(mm)3
r1(min.)(mm)1
Basic load ratings : Cr(kN)2500
Basic load ratings : C0r(kN)4860
Fatigue load limit : Cu(kN)518
Axial load factors : Y2(mm)1.24
Axial load factors : Y31.84
Axial load factors : Y01.21
Constant e0.55

Mounting dimensions,weight (reference)

da(min.)(mm)238 mm
Da(max.)(mm)316 mm
Da(max.)(mm)300 mm
S(min.)(mm)8 mm
ra(max.)(mm)2.5 mm
rb(max.)(mm)1 mm
Axial load factors : Y2(mm)1.24 mm
Axial load factors : Y31.84
Axial load factors : Y01.21
Constant e0.55
Mass(Refer.)(kg)77.5 kg
JTEKT

2026/07/18