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


Bearing No. 68FC45250BW

Specification data (main dimensions, etc.)

d(mm)340
D(mm)450
B(mm)250
C(mm)250
Fw(mm)368
r(min.)(mm)2.1
r1(min.)(mm)2.1
Basic load ratings : Cr(kN)2940
Basic load ratings : C0r(kN)6480
Fatigue load limit : Cu(kN)672

Mounting dimensions,weight (reference)

da(min.)(mm)352 mm
Da(max.)(mm)438 mm
da(min.)(mm)424 mm
ra(max.)(mm)2 mm
rb(max.)(mm)2 mm
Mass(Refer.)(kg)106 kg
JTEKT

2026/07/07