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

Bearing No. 7228DB FY

Specifications
(Boundary dimensions ...etc)

d(mm)140
D(mm)250
B(mm)84
r(min.)(mm)3
r1(min.)(mm)1.1
Basic load ratings : Cr(kN)443
Basic load ratings : C0r(kN)468
Fatigue load limit : Cu(kN)17.3
factor : f0()-
Limiting speeds(Grease lub.)(min-1)2300
Limiting speeds(Oil lub.)(min-1)2900
Load center spread : a(mm)154.6

Mounting dimensions

da(min.)(mm)154
Db(max.)(mm)243
ra(max.)(mm)2.5
rb(max.)(mm)1

Refer.

(Refer.)Mass(kg) 15.5
JTEKT

2025/06/17