Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. M281349D/10/10D

Specifications
(Boundary dimensions ...etc)

d(mm)649.924
D(mm)914.898
T(mm)674.000
W(mm)672.000
r(min.)(mm)6
r1(min.)(mm)3.6
Basic load ratings : Cr(kN)17100
Basic load ratings : C0r(kN)43800
Fatigue load limit : Cu(kN)3360
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)703
Da(max.)(mm)891
Da(max.)(mm)844
S(min.)(mm)12
ra(max.)(mm)6
rb(max.)(mm)3.6
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) 1430
JTEKT

2025/06/01