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


Bearing No. 33112JR

Specification data (main dimensions, etc.)

d(mm)60
D(mm)100
T(mm)30
B(mm)30
C(mm)23
r(min.)(mm)1.5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)149
Basic load ratings : C0r(kN)170
Fatigue load limit : Cu(kN)25.9
Limiting speeds(Grease lub.)(min-1)3700
Limiting speeds(Oil lub.)(min-1)5000
Load center spread : a(mm)23.7
Constant e0.40
Axial load factors : Y11.51
Axial load factors : Y00.83

Mounting dimensions,weight (reference)

da(min.)(mm)68.5 mm
db(max.)(mm)67 mm
Da(max.)(mm)91.5 mm
da(min.)(mm)88 mm
db(min.)(mm)96 mm
Sa(min.)(mm)5 mm
Sb(min.)(mm)7 mm
ra(max.)(mm)1.5 mm
rb(max.)(mm)1.5 mm
Mass(Refer.)(kg)0.923 kg
JTEKT

2026/08/09