Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. EE649241D/310/311D

Specifications
(Boundary dimensions ...etc)

d(mm)609.600
D(mm)787.400
T(mm)361.950
W(mm)361.950
r(min.)(mm)6.4
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)7300
Basic load ratings : C0r(kN)19900
Fatigue load limit : Cu(kN)1680
Axial load factors : Y2(mm)1.82
Axial load factors : Y3()2.70
Axial load factors : Y0()1.78
Constant e()0.37

Mounting dimensions

da(min.)(mm)650
Da(max.)(mm)763
Da(max.)(mm)739
S(min.)(mm)13
ra(max.)(mm)6.4
rb(max.)(mm)3.2
Axial load factors : Y2(mm)1.82
Axial load factors : Y3()2.70
Axial load factors : Y0()1.78
Constant e()0.37

Refer.

(Refer.)Mass(kg) 459
JTEKT

2025/06/01