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


Bearing No. 64FC46340A

Specification data (main dimensions, etc.)

d(mm)320
D(mm)460
B(mm)340
C(mm)340
Fw(mm)360
r(min.)(mm)3
r1(min.)(mm)3
Basic load ratings : Cr(kN)4150
Basic load ratings : C0r(kN)8730
Fatigue load limit : Cu(kN)890

Mounting dimensions,weight (reference)

da(min.)(mm)334 mm
Da(max.)(mm)446 mm
da(min.)(mm)428 mm
ra(max.)(mm)2.5 mm
rb(max.)(mm)2.5 mm
Mass(Refer.)(kg)187 kg
JTEKT

2026/07/19