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

Bearing No. 7304BDB

Specifications
(Boundary dimensions ...etc)

d(mm)20
D(mm)52
B(mm)30
r(min.)(mm)1.1
r1(min.)(mm)0.6
Basic load ratings : Cr(kN)35.2
Basic load ratings : C0r(kN)19.3
Fatigue load limit : Cu(kN)1.35
factor : f0()-
Limiting speeds(Grease lub.)(min-1)8000
Limiting speeds(Oil lub.)(min-1)10000
Load center spread : a(mm)45.2

Mounting dimensions

da(min.)(mm)27
Db(max.)(mm)47.5
ra(max.)(mm)1
rb(max.)(mm)0.6

Refer.

(Refer.)Mass(kg) 0.300
JTEKT

2025/05/11