Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. 47T13608746

Specifications
(Boundary dimensions ...etc)

d(mm)680
D(mm)870
T(mm)460
W(mm)460
r(min.)(mm)4
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)9750
Basic load ratings : C0r(kN)27400
Fatigue load limit : Cu(kN)2190
Axial load factors : Y2(mm)1.34
Axial load factors : Y3()2.00
Axial load factors : Y0()1.32
Constant e()0.50

Mounting dimensions

da(min.)(mm)710
Da(max.)(mm)852
Da(max.)(mm)820
S(min.)(mm)9
ra(max.)(mm)3
rb(max.)(mm)2.5
Axial load factors : Y2(mm)1.34
Axial load factors : Y3()2.00
Axial load factors : Y0()1.32
Constant e()0.50

Refer.

(Refer.)Mass(kg) 677
JTEKT

2025/06/01