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


Bearing No. 477/472

Specification data (main dimensions, etc.)

d(mm)63.500
D(mm)120.000
T(mm)29.794
B(mm)29.007
C(mm)24.237
r(min.)(mm)0.8
r1(min.)(mm)2.0
Basic load ratings : Cr(kN)148
Basic load ratings : C0r(kN)161
Fatigue load limit : Cu(kN)25.0
Limiting speeds(Grease lub.)(min-1)3200
Limiting speeds(Oil lub.)(min-1)4200
Load center spread : a(mm)25.7
Constant :e0.38
Axial load factors : Y11.56
Axial load factors : Y00.86

Mounting dimensions,weight (reference)

da(mm)73.0 mm
db(mm)72.0 mm
Da(mm)108.0 mm
Db(mm)113.0 mm
ra(max.)(mm)0.8 mm
rb(max.)(mm)2.0 mm
Mass(Refer.)(kg)1.46 kg
JTEKT

2026/07/28