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


Bearing No. 32008JR

Specification data (main dimensions, etc.)

d(mm)40
D(mm)68
T(mm)19
B(mm)19
C(mm)14.5
r(min.)(mm)1
r1(min.)(mm)1
Basic load ratings : Cr(kN)67.2
Basic load ratings : C0r(kN)71.4
Fatigue load limit : Cu(kN)10.3
Limiting speeds(Grease lub.)(min-1)5600
Limiting speeds(Oil lub.)(min-1)7400
Load center spread : a(mm)15.1
Constant e0.38
Axial load factors : Y11.58
Axial load factors : Y00.87

Mounting dimensions,weight (reference)

da(min.)(mm)45.5 mm
db(max.)(mm)46 mm
Da(max.)(mm)62.5 mm
da(min.)(mm)60 mm
db(min.)(mm)65 mm
Sa(min.)(mm)4 mm
Sb(min.)(mm)4.5 mm
ra(max.)(mm)1 mm
rb(max.)(mm)1 mm
Mass(Refer.)(kg)0.282 kg
JTEKT

2026/07/19