Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. M283449D/410/410D

Specifications
(Boundary dimensions ...etc)

d(mm)730.250
D(mm)1035.05
T(mm)755.650
W(mm)755.650
r(min.)(mm)6.4
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)21100
Basic load ratings : C0r(kN)54300
Fatigue load limit : Cu(kN)4000
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)795
Da(max.)(mm)1011
Da(max.)(mm)955
S(min.)(mm)11
ra(max.)(mm)6.4
rb(max.)(mm)3.2
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) 2080
JTEKT

2025/06/01