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


Bearing No. JM718149/10

Specification data (main dimensions, etc.)

d(mm)90.000
D(mm)145.000
T(mm)35.000
B(mm)34.000
C(mm)27.000
r(min.)(mm)3.0
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)244
Basic load ratings : C0r(kN)291
Fatigue load limit : Cu(kN)43.5
Limiting speeds(Grease lub.)(min-1)2500
Limiting speeds(Oil lub.)(min-1)3400
Load center spread : a(mm)32.7
Constant :e0.44
Axial load factors : Y11.35
Axial load factors : Y00.74

Mounting dimensions,weight (reference)

da(mm)105.0 mm
db(mm)99.0 mm
Da(mm)131.0 mm
Db(mm)139.0 mm
ra(max.)(mm)3.0 mm
rb(max.)(mm)2.5 mm
Mass(Refer.)(kg)2.122 kg
JTEKT

2026/07/17