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


Bearing No. 56FC39275B

Specification data (main dimensions, etc.)

d(mm)280
D(mm)390
B(mm)275
C(mm)275
Fw(mm)309
r(min.)(mm)2.1
r1(min.)(mm)2.1
Basic load ratings : Cr(kN)2880
Basic load ratings : C0r(kN)6110
Fatigue load limit : Cu(kN)647

Mounting dimensions,weight (reference)

da(min.)(mm)292 mm
Da(max.)(mm)378 mm
da(min.)(mm)363 mm
ra(max.)(mm)2 mm
rb(max.)(mm)2 mm
Mass(Refer.)(kg)100 kg
JTEKT

2026/07/23