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


Bearing No. 32321JR

Specification data (main dimensions, etc.)

d(mm)105
D(mm)225
T(mm)81.5
B(mm)77
C(mm)63
r(min.)(mm)4
r1(min.)(mm)3
Basic load ratings : Cr(kN)794
Basic load ratings : C0r(kN)866
Fatigue load limit : Cu(kN)107
Limiting speeds(Grease lub.)(min-1)1800
Limiting speeds(Oil lub.)(min-1)2300
Load center spread : a(mm)56.1
Constant e0.35
Axial load factors : Y11.74
Axial load factors : Y00.96

Mounting dimensions,weight (reference)

da(min.)(mm)123 mm
db(max.)(mm)128 mm
Da(max.)(mm)211 mm
da(min.)(mm)185 mm
db(min.)(mm)209 mm
Sa(min.)(mm)8 mm
Sb(min.)(mm)18.5 mm
ra(max.)(mm)3 mm
rb(max.)(mm)2.5 mm
Mass(Refer.)(kg)14.9 kg
JTEKT

2026/07/05