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


Bearing No. 68FC49300

Specification data (main dimensions, etc.)

d(mm)340
D(mm)490
B(mm)300
C(mm)300
Fw(mm)380
r(min.)(mm)5
r1(min.)(mm)5
Basic load ratings : Cr(kN)3760
Basic load ratings : C0r(kN)7690
Fatigue load limit : Cu(kN)784

Mounting dimensions,weight (reference)

da(min.)(mm)362 mm
Da(max.)(mm)468 mm
da(min.)(mm)450 mm
ra(max.)(mm)4 mm
rb(max.)(mm)4 mm
Mass(Refer.)(kg)187 kg
JTEKT

2026/07/20