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


Bearing No. JM207049/10

Specification data (main dimensions, etc.)

d(mm)55.000
D(mm)95.000
T(mm)29.000
B(mm)29.000
C(mm)23.500
r(min.)(mm)1.6
r1(min.)(mm)2.8
Basic load ratings : Cr(kN)138
Basic load ratings : C0r(kN)150
Fatigue load limit : Cu(kN)23.0
Limiting speeds(Grease lub.)(min-1)4000
Limiting speeds(Oil lub.)(min-1)5300
Load center spread : a(mm)21.3
Constant :e0.33
Axial load factors : Y11.79
Axial load factors : Y00.99

Mounting dimensions,weight (reference)

da(mm)64.0 mm
db(mm)62.0 mm
Da(mm)85.0 mm
Db(mm)91.0 mm
ra(max.)(mm)1.6 mm
rb(max.)(mm)2.8 mm
Mass(Refer.)(kg)0.823 kg
JTEKT

2026/07/29