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


Bearing No. 66212R/462

Specification data (main dimensions, etc.)

d(mm)53.975
D(mm)117.475
T(mm)33.338
B(mm)31.750
C(mm)23.812
r(min.)(mm)3.6
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)162
Basic load ratings : C0r(kN)152
Fatigue load limit : Cu(kN)23.2
Limiting speeds(Grease lub.)(min-1)3500
Limiting speeds(Oil lub.)(min-1)4600
Load center spread : a(mm)33.2
Constant :e0.63
Axial load factors : Y10.96
Axial load factors : Y00.53

Mounting dimensions,weight (reference)

da(mm)73.0 mm
db(mm)67.0 mm
Da(mm)100.0 mm
Db(mm)111.0 mm
ra(max.)(mm)3.6 mm
rb(max.)(mm)3.2 mm
Mass(Refer.)(kg)1.582 kg
JTEKT

2026/07/05