Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. 47T644836-1

Specifications
(Boundary dimensions ...etc)

d(mm)320
D(mm)480
T(mm)360
W(mm)360
r(min.)(mm)4
r1(min.)(mm)1
Basic load ratings : Cr(kN)5340
Basic load ratings : C0r(kN)11000
Fatigue load limit : Cu(kN)1070
Axial load factors : Y2(mm)1.43
Axial load factors : Y3()2.12
Axial load factors : Y0()1.40
Constant e()0.47

Mounting dimensions

da(min.)(mm)352
Da(max.)(mm)462
Da(max.)(mm)442
S(min.)(mm)9
ra(max.)(mm)3
rb(max.)(mm)1
Axial load factors : Y2(mm)1.43
Axial load factors : Y3()2.12
Axial load factors : Y0()1.40
Constant e()0.47

Refer.

(Refer.)Mass(kg) 229
JTEKT

2025/06/01