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

Bearing No. 313891-1

Specifications
(Boundary dimensions ...etc)

d(mm)150
D(mm)230
B(mm)156
C(mm)156
Fw(mm)174
r(min.)(mm)2
r1(min.)(mm)2
Basic load ratings : Cr(kN)1030
Basic load ratings : C0r(kN)1810
Fatigue load limit : Cu(kN)238

Mounting dimensions

da(min.)(mm)160
Da(max.)(mm)220
da(min.)(mm)210
ra(max.)(mm)2
rb(max.)(mm)2

Refer.

(Refer.)Mass(kg) 23.8
JTEKT

2025/06/01