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


Bearing No. 66FC46340

Specification data (main dimensions, etc.)

d(mm)330
D(mm)460
B(mm)340
C(mm)340
Fw(mm)364
r(min.)(mm)2.1
r1(min.)(mm)2.1
Basic load ratings : Cr(kN)4150
Basic load ratings : C0r(kN)9150
Fatigue load limit : Cu(kN)926

Mounting dimensions,weight (reference)

da(min.)(mm)342 mm
Da(max.)(mm)448 mm
da(min.)(mm)428 mm
ra(max.)(mm)2 mm
rb(max.)(mm)2 mm
Mass(Refer.)(kg)172 kg
JTEKT

2026/07/19