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


Bearing No. 32311J

Specification data (main dimensions, etc.)

d(mm)55
D(mm)120
T(mm)45.5
B(mm)43
C(mm)35
r(min.)(mm)2.5
r1(min.)(mm)2
Basic load ratings : Cr(kN)214
Basic load ratings : C0r(kN)203
Fatigue load limit : Cu(kN)31.8
Limiting speeds(Grease lub.)(min-1)3400
Limiting speeds(Oil lub.)(min-1)4500
Load center spread : a(mm)32.4
Constant e0.35
Axial load factors : Y11.74
Axial load factors : Y00.96

Mounting dimensions,weight (reference)

da(min.)(mm)67 mm
db(max.)(mm)68 mm
Da(max.)(mm)108 mm
da(min.)(mm)99 mm
db(min.)(mm)111 mm
Sa(min.)(mm)4 mm
Sb(min.)(mm)10.5 mm
ra(max.)(mm)2 mm
rb(max.)(mm)2 mm
Mass(Refer.)(kg)2.24 kg
JTEKT

2026/08/04