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

Bearing No. 47T644434

Specifications
(Boundary dimensions ...etc)

d(mm)320
D(mm)440
T(mm)335
W(mm)335
r(min.)(mm)2
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)3850
Basic load ratings : C0r(kN)8750
Fatigue load limit : Cu(kN)877
Axial load factors : Y2(mm)1.68
Axial load factors : Y3()2.50
Axial load factors : Y0()1.64
Constant e()0.40

Mounting dimensions

da(min.)(mm)341
Da(max.)(mm)430
Da(max.)(mm)408
S(min.)(mm)5.5
ra(max.)(mm)2
rb(max.)(mm)2
Axial load factors : Y2(mm)1.68
Axial load factors : Y3()2.50
Axial load factors : Y0()1.64
Constant e()0.40

Refer.

(Refer.)Mass(kg) 149
JTEKT

2025/06/01