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


Bearing No. 32303JR

Specification data (main dimensions, etc.)

d(mm)17
D(mm)47
T(mm)20.25
B(mm)19
C(mm)16
r(min.)(mm)1
r1(min.)(mm)1
Basic load ratings : Cr(kN)45.7
Basic load ratings : C0r(kN)35.9
Fatigue load limit : Cu(kN)5.10
Limiting speeds(Grease lub.)(min-1)9400
Limiting speeds(Oil lub.)(min-1)13000
Load center spread : a(mm)12.2
Constant e0.29
Axial load factors : Y12.11
Axial load factors : Y01.16

Mounting dimensions,weight (reference)

da(min.)(mm)22.5 mm
db(max.)(mm)25 mm
Da(max.)(mm)41.5 mm
da(min.)(mm)39 mm
db(min.)(mm)43 mm
Sa(min.)(mm)2 mm
Sb(min.)(mm)4 mm
ra(max.)(mm)1 mm
rb(max.)(mm)1 mm
Mass(Refer.)(kg)0.176 kg
JTEKT

2026/07/09