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


Bearing No. 74FC52380

Specification data (main dimensions, etc.)

d(mm)370
D(mm)520
B(mm)380
C(mm)380
Fw(mm)409
r(min.)(mm)5
r1(min.)(mm)5
Basic load ratings : Cr(kN)5710
Basic load ratings : C0r(kN)13200
Fatigue load limit : Cu(kN)1300

Mounting dimensions,weight (reference)

da(min.)(mm)392 mm
Da(max.)(mm)498 mm
da(min.)(mm)481 mm
ra(max.)(mm)4 mm
rb(max.)(mm)4 mm
Mass(Refer.)(kg)257 kg
JTEKT

2026/07/20