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

Bearing No. 47T644533J

Specifications
(Boundary dimensions ...etc)

d(mm)317.500
D(mm)447.675
T(mm)327.025
W(mm)327.025
r(min.)(mm)6.4
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)4430
Basic load ratings : C0r(kN)9820
Fatigue load limit : Cu(kN)976
Axial load factors : Y2(mm)2.02
Axial load factors : Y3()3.00
Axial load factors : Y0()1.97
Constant e()0.33

Mounting dimensions

da(min.)(mm)341
Da(max.)(mm)426
Da(max.)(mm)411
S(min.)(mm)7.5
ra(max.)(mm)6.4
rb(max.)(mm)1.6
Axial load factors : Y2(mm)2.02
Axial load factors : Y3()3.00
Axial load factors : Y0()1.97
Constant e()0.33

Refer.

(Refer.)Mass(kg) 161
JTEKT

2025/06/01