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

Bearing No. 47T644825

Specifications
(Boundary dimensions ...etc)

d(mm)320
D(mm)480
T(mm)254
W(mm)254
r(min.)(mm)4
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)3650
Basic load ratings : C0r(kN)6940
Fatigue load limit : Cu(kN)709
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)358
Da(max.)(mm)462
Da(max.)(mm)437
S(min.)(mm)9
ra(max.)(mm)3
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) 161
JTEKT

2025/06/01