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

Bearing No. 33012JR

Specifications
(Boundary dimensions ...etc)

d(mm)60
D(mm)95
T(mm)27
B(mm)27
C(mm)21
r(min.)(mm)1.5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)127
Basic load ratings : C0r(kN)162
Fatigue load limit : Cu(kN)24.5
Limiting speeds(Grease lub.)(min-1)3900
Limiting speeds(Oil lub.)(min-1)5200
Load center spread : a(mm)20.1
Constant e()0.33
Axial load factors : Y1()1.83
Axial load factors : Y0()1.01

Mounting dimensions

da(min.)(mm)68.5
db(max.)(mm)67
Da(max.)(mm)86.5
Da(min.)(mm)85
Db(min.)(mm)90
Sa(min.)(mm)5
Sb(min.)(mm)6
ra(max.)(mm)1.5
rb(max.)(mm)1.5

Refer.

(Refer.)Mass(kg) 0.719
JTEKT

2025/06/01