Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. JHM840449/10

Specifications
(Boundary dimensions ...etc)

d(mm)200.000
D(mm)300.000
T(mm)65.000
B(mm)62.000
C(mm)51.000
r(min.)(mm)3.6
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)773
Basic load ratings : C0r(kN)1140
Fatigue load limit : Cu(kN)124
Limiting speeds(Grease lub.)(min-1)1100
Limiting speeds(Oil lub.)(min-1)1500
Load center spread : a(mm)72.1
Constant :e()0.52
Axial load factors : Y1()1.15
Axial load factors : Y0()0.63

Mounting dimensions

da(mm)213.0
db(mm)218.0
Da(mm)270.0
Db(mm)288.0
ra(max.)(mm)3.6
rb(max.)(mm)2.5

Refer.

(Refer.)Mass(kg) 15.1
JTEKT

2025/06/01