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


Bearing No. 32306JR

Specification data (main dimensions, etc.)

d(mm)30
D(mm)72
T(mm)28.75
B(mm)27
C(mm)23
r(min.)(mm)1.5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)103
Basic load ratings : C0r(kN)91.6
Fatigue load limit : Cu(kN)13.8
Limiting speeds(Grease lub.)(min-1)5900
Limiting speeds(Oil lub.)(min-1)7900
Load center spread : a(mm)18.9
Constant e0.31
Axial load factors : Y11.90
Axial load factors : Y01.05

Mounting dimensions,weight (reference)

da(min.)(mm)38.5 mm
db(max.)(mm)39 mm
Da(max.)(mm)63.5 mm
da(min.)(mm)59 mm
db(min.)(mm)66 mm
Sa(min.)(mm)3 mm
Sb(min.)(mm)5.5 mm
ra(max.)(mm)1.5 mm
rb(max.)(mm)1.5 mm
Mass(Refer.)(kg)0.588 kg
JTEKT

2026/07/21