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

Bearing No. 47256

Specifications
(Boundary dimensions ...etc)

d(mm)280
D(mm)420
T(mm)225
W(mm)225
r(min.)(mm)4
r1(min.)(mm)5
Basic load ratings : Cr(kN)2560
Basic load ratings : C0r(kN)4950
Fatigue load limit : Cu(kN)530
Axial load factors : Y2(mm)2.69
Axial load factors : Y3()4.00
Axial load factors : Y0()2.63
Constant e()0.25

Mounting dimensions

da(min.)(mm)322
Da(max.)(mm)402
Da(max.)(mm)382
S(min.)(mm)8.5
ra(max.)(mm)3
rb(max.)(mm)4
Axial load factors : Y2(mm)2.69
Axial load factors : Y3()4.00
Axial load factors : Y0()2.63
Constant e()0.25

Refer.

(Refer.)Mass(kg) 104
JTEKT

2025/06/01