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

Bearing No. 7309BDB

Specifications
(Boundary dimensions ...etc)

d(mm)45
D(mm)100
B(mm)50
r(min.)(mm)1.5
r1(min.)(mm)1
Basic load ratings : Cr(kN)109
Basic load ratings : C0r(kN)74.3
Fatigue load limit : Cu(kN)4.85
factor : f0()-
Limiting speeds(Grease lub.)(min-1)3900
Limiting speeds(Oil lub.)(min-1)5200
Load center spread : a(mm)86.3

Mounting dimensions

da(min.)(mm)53.5
Db(max.)(mm)94.5
ra(max.)(mm)1.5
rb(max.)(mm)1

Refer.

(Refer.)Mass(kg) 1.75
JTEKT

2025/05/10