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


Bearing No. 32921JR

Specification data (main dimensions, etc.)

d(mm)105
D(mm)145
T(mm)25
B(mm)25
C(mm)20
r(min.)(mm)1.5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)160
Basic load ratings : C0r(kN)224
Fatigue load limit : Cu(kN)32.6
Limiting speeds(Grease lub.)(min-1)2400
Limiting speeds(Oil lub.)(min-1)3100
Load center spread : a(mm)25.1
Constant e0.34
Axial load factors : Y11.75
Axial load factors : Y00.96

Mounting dimensions,weight (reference)

da(min.)(mm)113.5 mm
db(max.)(mm)113 mm
Da(max.)(mm)136.5 mm
da(min.)(mm)133 mm
db(min.)(mm)140 mm
Sa(min.)(mm)5 mm
Sb(min.)(mm)5 mm
ra(max.)(mm)1.5 mm
rb(max.)(mm)1.5 mm
Mass(Refer.)(kg)1.23 kg
JTEKT

2026/07/07