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

Bearing No. 47T725428

Specifications
(Boundary dimensions ...etc)

d(mm)360
D(mm)540
T(mm)280
W(mm)280
r(min.)(mm)5
r1(min.)(mm)6
Basic load ratings : Cr(kN)4040
Basic load ratings : C0r(kN)8000
Fatigue load limit : Cu(kN)777
Axial load factors : Y2(mm)1.24
Axial load factors : Y3()1.84
Axial load factors : Y0()1.21
Constant e()0.55

Mounting dimensions

da(min.)(mm)402
Da(max.)(mm)518
Da(max.)(mm)489
S(min.)(mm)10.5
ra(max.)(mm)4
rb(max.)(mm)5
Axial load factors : Y2(mm)1.24
Axial load factors : Y3()1.84
Axial load factors : Y0()1.21
Constant e()0.55

Refer.

(Refer.)Mass(kg) 224
JTEKT

2025/06/01