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


Bearing No. 32948JR

Specification data (main dimensions, etc.)

d(mm)240
D(mm)320
T(mm)51
B(mm)51
C(mm)39
r(min.)(mm)3
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)645
Basic load ratings : C0r(kN)1090
Fatigue load limit : Cu(kN)119
Limiting speeds(Grease lub.)(min-1)940
Limiting speeds(Oil lub.)(min-1)1300
Load center spread : a(mm)64.5
Constant e0.46
Axial load factors : Y11.31
Axial load factors : Y00.72

Mounting dimensions,weight (reference)

da(min.)(mm)254 mm
db(max.)(mm)254 mm
Da(max.)(mm)308 mm
da(min.)(mm)294 mm
db(min.)(mm)311 mm
Sa(min.)(mm)9 mm
Sb(min.)(mm)12 mm
ra(max.)(mm)2.5 mm
rb(max.)(mm)2 mm
Mass(Refer.)(kg)10.9 kg
JTEKT

2026/07/22