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


Bearing No. 32309JR

Specification data (main dimensions, etc.)

d(mm)45
D(mm)100
T(mm)38.25
B(mm)36
C(mm)30
r(min.)(mm)2
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)183
Basic load ratings : C0r(kN)180
Fatigue load limit : Cu(kN)27.7
Limiting speeds(Grease lub.)(min-1)4100
Limiting speeds(Oil lub.)(min-1)5500
Load center spread : a(mm)26.8
Constant e0.35
Axial load factors : Y11.74
Axial load factors : Y00.96

Mounting dimensions,weight (reference)

da(min.)(mm)55 mm
db(max.)(mm)56 mm
Da(max.)(mm)90 mm
da(min.)(mm)82 mm
db(min.)(mm)93 mm
Sa(min.)(mm)3 mm
Sb(min.)(mm)8 mm
ra(max.)(mm)2 mm
rb(max.)(mm)1.5 mm
Mass(Refer.)(kg)1.43 kg
JTEKT

2026/07/18