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


Bearing No. 02473/20

Specification data (main dimensions, etc.)

d(mm)25.400
D(mm)68.262
T(mm)22.225
B(mm)22.225
C(mm)17.462
r(min.)(mm)0.8
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)63.7
Basic load ratings : C0r(kN)61.1
Fatigue load limit : Cu(kN)8.80
Limiting speeds(Grease lub.)(min-1)6000
Limiting speeds(Oil lub.)(min-1)8000
Load center spread : a(mm)17.1
Constant :e0.42
Axial load factors : Y11.44
Axial load factors : Y00.79

Mounting dimensions,weight (reference)

da(mm)34.5 mm
db(mm)33.5 mm
Da(mm)59.0 mm
Db(mm)63.0 mm
ra(max.)(mm)0.8 mm
rb(max.)(mm)1.6 mm
Mass(Refer.)(kg)0.425 kg
JTEKT

2026/07/01