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


Bearing No. 482/472A

Specification data (main dimensions, etc.)

d(mm)69.850
D(mm)120.000
T(mm)29.002
B(mm)29.007
C(mm)23.444
r(min.)(mm)3.6
r1(min.)(mm)3.2
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)24.9
Constant :e0.38
Axial load factors : Y11.56
Axial load factors : Y00.86

Mounting dimensions,weight (reference)

da(mm)83.0 mm
db(mm)77.0 mm
Da(mm)106.0 mm
Db(mm)114.0 mm
ra(max.)(mm)3.6 mm
rb(max.)(mm)3.2 mm
Mass(Refer.)(kg)1.253 kg
JTEKT

2026/07/08