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


Bearing No. JM738249/10

Specification data (main dimensions, etc.)

d(mm)190.000
D(mm)260.000
T(mm)46.000
B(mm)44.000
C(mm)36.500
r(min.)(mm)3.0
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)461
Basic load ratings : C0r(kN)723
Fatigue load limit : Cu(kN)81.4
Limiting speeds(Grease lub.)(min-1)1200
Limiting speeds(Oil lub.)(min-1)1700
Load center spread : a(mm)56.0
Constant :e0.48
Axial load factors : Y11.26
Axial load factors : Y00.69

Mounting dimensions,weight (reference)

da(mm)201.0 mm
db(mm)203.0 mm
Da(mm)240.0 mm
Db(mm)251.0 mm
ra(max.)(mm)3.0 mm
rb(max.)(mm)2.5 mm
Mass(Refer.)(kg)6.89 kg
JTEKT

2026/07/29