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


Bearing No. 32318JR

Specification data (main dimensions, etc.)

d(mm)90
D(mm)190
T(mm)67.5
B(mm)64
C(mm)53
r(min.)(mm)4
r1(min.)(mm)3
Basic load ratings : Cr(kN)577
Basic load ratings : C0r(kN)614
Fatigue load limit : Cu(kN)78.7
Limiting speeds(Grease lub.)(min-1)2100
Limiting speeds(Oil lub.)(min-1)2800
Load center spread : a(mm)46.6
Constant e0.35
Axial load factors : Y11.74
Axial load factors : Y00.96

Mounting dimensions,weight (reference)

da(min.)(mm)108 mm
db(max.)(mm)108 mm
Da(max.)(mm)176 mm
da(min.)(mm)157 mm
db(min.)(mm)177 mm
Sa(min.)(mm)5 mm
Sb(min.)(mm)14.5 mm
ra(max.)(mm)3 mm
rb(max.)(mm)2.5 mm
Mass(Refer.)(kg)8.61 kg
JTEKT

2026/07/23