Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. M281649D/610/610D

Specifications
(Boundary dimensions ...etc)

d(mm)657.225
D(mm)933.450
T(mm)676.275
W(mm)676.275
r(min.)(mm)6.4
r1(min.)(mm)3.3
Basic load ratings : Cr(kN)18600
Basic load ratings : C0r(kN)46000
Fatigue load limit : Cu(kN)3510
Axial load factors : Y2(mm)2.03
Axial load factors : Y3()3.02
Axial load factors : Y0()1.98
Constant e()0.33

Mounting dimensions

da(min.)(mm)713
Da(max.)(mm)909
Da(max.)(mm)864
S(min.)(mm)9.5
ra(max.)(mm)6.4
rb(max.)(mm)3.3
Axial load factors : Y2(mm)2.03
Axial load factors : Y3()3.02
Axial load factors : Y0()1.98
Constant e()0.33

Refer.

(Refer.)Mass(kg) 1530
JTEKT

2025/06/01