Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series


Bearing No. JH307749/10

Specification data (main 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 :e0.35
Axial load factors : Y11.73
Axial load factors : Y00.95

Mounting dimensions,weight (reference)

da(mm)71.0 mm
db(mm)64.0 mm
Da(mm)97.0 mm
Db(mm)104.0 mm
ra(max.)(mm)3.0 mm
rb(max.)(mm)2.5 mm
Mass(Refer.)(kg)1.72 kg
JTEKT

2026/07/19