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


Bearing No. 47T443220

Specification data (main dimensions, etc.)

d(mm)220
D(mm)320
T(mm)201
W(mm)201
r(min.)(mm)3
r1(min.)(mm)3
Basic load ratings : Cr(kN)1780
Basic load ratings : C0r(kN)3760
Fatigue load limit : Cu(kN)412
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)247 mm
Da(max.)(mm)306 mm
Da(max.)(mm)290 mm
S(min.)(mm)5.5 mm
ra(max.)(mm)2.5 mm
rb(max.)(mm)2.5 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)52.4 kg
JTEKT

2026/07/19