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

Bearing No. 7404BDB FY

Specifications
(Boundary dimensions ...etc)

d(mm)20
D(mm)72
B(mm)38
r(min.)(mm)1.1
r1(min.)(mm)0.6
Basic load ratings : Cr(kN)68.1
Basic load ratings : C0r(kN)35.9
Fatigue load limit : Cu(kN)2.80
factor : f0()-
Limiting speeds(Grease lub.)(min-1)6400
Limiting speeds(Oil lub.)(min-1)9600
Load center spread : a(mm)58.4

Mounting dimensions

da(min.)(mm)27
Db(max.)(mm)67.5
ra(max.)(mm)1
rb(max.)(mm)0.6

Refer.

(Refer.)Mass(kg) 0.790
JTEKT

2025/06/01