Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. 47T443326B

Specifications
(Boundary dimensions ...etc)

d(mm)220
D(mm)330
T(mm)260
W(mm)260
r(min.)(mm)3
r1(min.)(mm)1
Basic load ratings : Cr(kN)2500
Basic load ratings : C0r(kN)4860
Fatigue load limit : Cu(kN)518
Axial load factors : Y2(mm)1.24
Axial load factors : Y3()1.84
Axial load factors : Y0()1.21
Constant e()0.55

Mounting dimensions

da(min.)(mm)238
Da(max.)(mm)316
Da(max.)(mm)300
S(min.)(mm)8
ra(max.)(mm)2.5
rb(max.)(mm)1
Axial load factors : Y2(mm)1.24
Axial load factors : Y3()1.84
Axial load factors : Y0()1.21
Constant e()0.55

Refer.

(Refer.)Mass(kg) 77.5
JTEKT

2025/06/01