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


Bearing No. 33108JR

Specification data (main dimensions, etc.)

d(mm)40
D(mm)75
T(mm)26
B(mm)26
C(mm)20.5
r(min.)(mm)1.5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)103
Basic load ratings : C0r(kN)108
Fatigue load limit : Cu(kN)16.1
Limiting speeds(Grease lub.)(min-1)5200
Limiting speeds(Oil lub.)(min-1)6900
Load center spread : a(mm)18.3
Constant e0.36
Axial load factors : Y11.69
Axial load factors : Y00.93

Mounting dimensions,weight (reference)

da(min.)(mm)48.5 mm
db(max.)(mm)47 mm
Da(max.)(mm)66.5 mm
da(min.)(mm)65 mm
db(min.)(mm)71 mm
Sa(min.)(mm)4 mm
Sb(min.)(mm)5.5 mm
ra(max.)(mm)1.5 mm
rb(max.)(mm)1.5 mm
Mass(Refer.)(kg)0.508 kg
JTEKT

2026/07/07