Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. 47T443220

Specifications
(Boundary 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 : Y3()3.02
Axial load factors : Y0()1.98
Constant e()0.33

Mounting dimensions

da(min.)(mm)247
Da(max.)(mm)306
Da(max.)(mm)290
S(min.)(mm)5.5
ra(max.)(mm)2.5
rb(max.)(mm)2.5
Axial load factors : Y2(mm)2.03
Axial load factors : Y3()3.02
Axial load factors : Y0()1.98
Constant e()0.33

Refer.

(Refer.)Mass(kg) 52.4
JTEKT

2025/06/01