Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. 47T402821

Specifications
(Boundary dimensions ...etc)

d(mm)200
D(mm)280
T(mm)206
W(mm)206
r(min.)(mm)2.5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)1790
Basic load ratings : C0r(kN)3830
Fatigue load limit : Cu(kN)435
Axial load factors : Y2(mm)1.71
Axial load factors : Y3()2.54
Axial load factors : Y0()1.67
Constant e()0.39

Mounting dimensions

da(min.)(mm)216
Da(max.)(mm)268
Da(max.)(mm)258
S(min.)(mm)6.5
ra(max.)(mm)2
rb(max.)(mm)1.5
Axial load factors : Y2(mm)1.71
Axial load factors : Y3()2.54
Axial load factors : Y0()1.67
Constant e()0.39

Refer.

(Refer.)Mass(kg) 39.7
JTEKT

2025/06/01