Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. 66212R/462

Specifications
(Boundary 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 :e()0.63
Axial load factors : Y1()0.96
Axial load factors : Y0()0.53

Mounting dimensions

da(mm)73.0
db(mm)67.0
Da(mm)100.0
Db(mm)111.0
ra(max.)(mm)3.6
rb(max.)(mm)3.2

Refer.

(Refer.)Mass(kg) 1.582
JTEKT

2025/06/01