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


Bearing No. 88FC64420

Specification data (main dimensions, etc.)

d(mm)440
D(mm)640
B(mm)420
C(mm)420
Fw(mm)492
r(min.)(mm)5
r1(min.)(mm)5
Basic load ratings : Cr(kN)8410
Basic load ratings : C0r(kN)18400
Fatigue load limit : Cu(kN)1740

Mounting dimensions,weight (reference)

da(min.)(mm)462 mm
Da(max.)(mm)618 mm
da(min.)(mm)592 mm
ra(max.)(mm)4 mm
rb(max.)(mm)4 mm
Mass(Refer.)(kg)470 kg
JTEKT

2026/07/22