Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. 47T413221

Specifications
(Boundary dimensions ...etc)

d(mm)205
D(mm)320
T(mm)205
W(mm)205
r(min.)(mm)3
r1(min.)(mm)4
Basic load ratings : Cr(kN)1870
Basic load ratings : C0r(kN)3030
Fatigue load limit : Cu(kN)350
Axial load factors : Y2(mm)1.46
Axial load factors : Y3()2.17
Axial load factors : Y0()1.42
Constant e()0.46

Mounting dimensions

da(min.)(mm)230
Da(max.)(mm)306
Da(max.)(mm)292
S(min.)(mm)7.5
ra(max.)(mm)2.5
rb(max.)(mm)3
Axial load factors : Y2(mm)1.46
Axial load factors : Y3()2.17
Axial load factors : Y0()1.42
Constant e()0.46

Refer.

(Refer.)Mass(kg) 58.9
JTEKT

2025/06/01