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


Bearing No. 33109JR

Specification data (main dimensions, etc.)

d(mm)45
D(mm)80
T(mm)26
B(mm)26
C(mm)20.5
r(min.)(mm)1.5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)110
Basic load ratings : C0r(kN)120
Fatigue load limit : Cu(kN)17.9
Limiting speeds(Grease lub.)(min-1)4800
Limiting speeds(Oil lub.)(min-1)6400
Load center spread : a(mm)19.4
Constant e0.38
Axial load factors : Y11.57
Axial load factors : Y00.86

Mounting dimensions,weight (reference)

da(min.)(mm)53.5 mm
db(max.)(mm)52 mm
Da(max.)(mm)71.5 mm
da(min.)(mm)69 mm
db(min.)(mm)76.5 mm
Sa(min.)(mm)4 mm
Sb(min.)(mm)5.5 mm
ra(max.)(mm)1.5 mm
rb(max.)(mm)1.5 mm
Mass(Refer.)(kg)0.563 kg
JTEKT

2026/07/07