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


Bearing No. 173FC122889

Specification data (main dimensions, etc.)

d(mm)862.98
D(mm)1219.302
B(mm)889
C(mm)889
Fw(mm)960
r(min.)(mm)7.5
r1(min.)(mm)7.5
Basic load ratings : Cr(kN)28400
Basic load ratings : C0r(kN)74400
Fatigue load limit : Cu(kN)5680

Mounting dimensions,weight (reference)

da(min.)(mm)899 mm
Da(max.)(mm)1183 mm
da(min.)(mm)1132 mm
ra(max.)(mm)6 mm
rb(max.)(mm)6 mm
Mass(Refer.)(kg)3360 kg
JTEKT

2026/07/19