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


Bearing No. 80FC52250W

Specification data (main dimensions, etc.)

d(mm)400
D(mm)520
B(mm)250
C(mm)250
Fw(mm)432
r(min.)(mm)4
r1(min.)(mm)4
Basic load ratings : Cr(kN)3130
Basic load ratings : C0r(kN)7050
Fatigue load limit : Cu(kN)698

Mounting dimensions,weight (reference)

da(min.)(mm)418 mm
Da(max.)(mm)502 mm
da(min.)(mm)492 mm
ra(max.)(mm)3 mm
rb(max.)(mm)3 mm
Mass(Refer.)(kg)133 kg
JTEKT

2026/07/19