Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row cylindrical roller bearings
>

Bearing No. 78FC55400AW

Specifications
(Boundary dimensions ...etc)

d(mm)390
D(mm)550
B(mm)400
C(mm)400
Fw(mm)434
r(min.)(mm)5
r1(min.)(mm)SP
Basic load ratings : Cr(kN)5510
Basic load ratings : C0r(kN)12400
Fatigue load limit : Cu(kN)1190

Mounting dimensions

da(min.)(mm)410
Da(max.)(mm)528
da(min.)(mm)510
ra(max.)(mm)4
rb(max.)(mm)4

Refer.

(Refer.)Mass(kg) 296
JTEKT

2025/06/16