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


Bearing No. 7310DB

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)151
Basic load ratings : C0r(kN)105
Fatigue load limit : Cu(kN)7.35
factor : f0-
Limiting speeds(Grease lub.)(min-1)4600
Limiting speeds(Oil lub.)(min-1)5800
Load center spread : a(mm)74.4

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

2026/07/19