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

Bearing No. 7311DB

Specifications
(Boundary dimensions ...etc)

d(mm)55
D(mm)120
B(mm)58
r(min.)(mm)2
r1(min.)(mm)1
Basic load ratings : Cr(kN)174
Basic load ratings : C0r(kN)123
Fatigue load limit : Cu(kN)8.60
factor : f0()-
Limiting speeds(Grease lub.)(min-1)4300
Limiting speeds(Oil lub.)(min-1)5300
Load center spread : a(mm)80.4

Mounting dimensions

da(min.)(mm)65
Db(max.)(mm)114.5
ra(max.)(mm)2
rb(max.)(mm)1

Refer.

(Refer.)Mass(kg) 2.90
JTEKT

2025/05/09