Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. JH307749/10

Specifications
(Boundary dimensions ...etc)

d(mm)55.000
D(mm)110.000
T(mm)39.000
B(mm)39.000
C(mm)32.000
r(min.)(mm)3.0
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)220
Basic load ratings : C0r(kN)224
Fatigue load limit : Cu(kN)34.7
Limiting speeds(Grease lub.)(min-1)3600
Limiting speeds(Oil lub.)(min-1)4900
Load center spread : a(mm)26.8
Constant :e()0.35
Axial load factors : Y1()1.73
Axial load factors : Y0()0.95

Mounting dimensions

da(mm)71.0
db(mm)64.0
Da(mm)97.0
Db(mm)104.0
ra(max.)(mm)3.0
rb(max.)(mm)2.5

Refer.

(Refer.)Mass(kg) 1.72
JTEKT

2025/06/16