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

Bearing No. 4CR850A

Specifications
(Boundary dimensions ...etc)

d(mm)850
D(mm)1180
B(mm)875
C(mm)850
Fw(mm)940
r(min.)(mm)7.5
r1(min.)(mm)7.5
Basic load ratings : Cr(kN)27300
Basic load ratings : C0r(kN)72700
Fatigue load limit : Cu(kN)5610

Mounting dimensions

da(min.)(mm)886
Da(max.)(mm)1144
da(min.)(mm)1104
ra(max.)(mm)6
rb(max.)(mm)6

Refer.

(Refer.)Mass(kg) 2930
JTEKT

2025/06/01