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


Bearing No. 33012JR

Specification data (main 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 e0.33
Axial load factors : Y11.83
Axial load factors : Y01.01

Mounting dimensions,weight (reference)

da(min.)(mm)68.5 mm
db(max.)(mm)67 mm
Da(max.)(mm)86.5 mm
da(min.)(mm)85 mm
db(min.)(mm)90 mm
Sa(min.)(mm)5 mm
Sb(min.)(mm)6 mm
ra(max.)(mm)1.5 mm
rb(max.)(mm)1.5 mm
Mass(Refer.)(kg)0.719 kg
JTEKT

2026/08/06