Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. EE641198D/265/266D

Specifications
(Boundary dimensions ...etc)

d(mm)501.650
D(mm)673.100
T(mm)387.350
W(mm)400.050
r(min.)(mm)6.4
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)7150
Basic load ratings : C0r(kN)17300
Fatigue load limit : Cu(kN)1550
Axial load factors : Y2(mm)2.15
Axial load factors : Y3()3.20
Axial load factors : Y0()2.10
Constant e()0.31

Mounting dimensions

da(min.)(mm)538
Da(max.)(mm)650
Da(max.)(mm)628
S(min.)(mm)9.5
ra(max.)(mm)6.4
rb(max.)(mm)3.2
Axial load factors : Y2(mm)2.15
Axial load factors : Y3()3.20
Axial load factors : Y0()2.10
Constant e()0.31

Refer.

(Refer.)Mass(kg) 386
JTEKT

2025/06/01