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


Bearing No. 44FC34180A

Specification data (main dimensions, etc.)

d(mm)220
D(mm)340
B(mm)180
C(mm)180
Fw(mm)256
r(min.)(mm)3
r1(min.)(mm)3
Basic load ratings : Cr(kN)1620
Basic load ratings : C0r(kN)2750
Fatigue load limit : Cu(kN)326

Mounting dimensions,weight (reference)

da(min.)(mm)234 mm
Da(max.)(mm)326 mm
da(min.)(mm)310 mm
ra(max.)(mm)2.5 mm
rb(max.)(mm)2.5 mm
Mass(Refer.)(kg)59.0 kg
JTEKT

2026/07/18