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


Bearing No. 122FC87660

Specification data (main dimensions, etc.)

d(mm)610
D(mm)870
B(mm)660
C(mm)660
Fw(mm)680
r(min.)(mm)6
r1(min.)(mm)6
Basic load ratings : Cr(kN)16300
Basic load ratings : C0r(kN)40300
Fatigue load limit : Cu(kN)3360

Mounting dimensions,weight (reference)

da(min.)(mm)638 mm
Da(max.)(mm)842 mm
da(min.)(mm)808 mm
ra(max.)(mm)5 mm
rb(max.)(mm)5 mm
Mass(Refer.)(kg)1310 kg
JTEKT

2026/07/19