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


Bearing No. 64FC48290

Specification data (main dimensions, etc.)

d(mm)320
D(mm)480
B(mm)290
C(mm)290
Fw(mm)361
r(min.)(mm)4
r1(min.)(mm)4
Basic load ratings : Cr(kN)4390
Basic load ratings : C0r(kN)8450
Fatigue load limit : Cu(kN)883

Mounting dimensions,weight (reference)

da(min.)(mm)338 mm
Da(max.)(mm)462 mm
da(min.)(mm)441 mm
ra(max.)(mm)3 mm
rb(max.)(mm)3 mm
Mass(Refer.)(kg)189 kg
JTEKT

2026/07/07