Koyo
FOR REFERENCE ONLY
  • Angular contact ball bearings
  • Matched pair
  • Back-to-back
  • With machined cage


Bearing No. 7310CDB FY

Specification data (main dimensions, etc.)

d(mm)50
D(mm)110
B(mm)54
r(min.)(mm)2
r1(min.)(mm)1
Basic load ratings : Cr(kN)153
Basic load ratings : C0r(kN)103
Fatigue load limit : Cu(kN)7.70
factor : f013.4
Limiting speeds(Grease lub.)(min-1)8000
Limiting speeds(Oil lub.)(min-1)11000
Load center spread : a(mm)49.0

Mounting dimensions,weight (reference)

da(min.)(mm)60 mm
Db(max.)(mm)104.5 mm
ra(max.)(mm)2 mm
rb(max.)(mm)1 mm
Mass(Refer.)(kg)2.28 kg
JTEKT

2026/07/04