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


Bearing No. JHM807045/12

Specification data (main dimensions, etc.)

d(mm)50.000
D(mm)105.000
T(mm)37.000
B(mm)36.000
C(mm)29.000
r(min.)(mm)3.0
r1(min.)(mm)2.8
Basic load ratings : Cr(kN)186
Basic load ratings : C0r(kN)205
Fatigue load limit : Cu(kN)30.6
Limiting speeds(Grease lub.)(min-1)3800
Limiting speeds(Oil lub.)(min-1)5100
Load center spread : a(mm)29.4
Constant :e0.49
Axial load factors : Y11.23
Axial load factors : Y00.68

Mounting dimensions,weight (reference)

da(mm)69.0 mm
db(mm)63.0 mm
Da(mm)90.0 mm
Db(mm)100.0 mm
ra(max.)(mm)3.0 mm
rb(max.)(mm)2.8 mm
Mass(Refer.)(kg)1.533 kg
JTEKT

2026/07/21