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


Bearing No. 4CR545

Specification data (main dimensions, etc.)

d(mm)545
D(mm)810
B(mm)580
C(mm)580
Fw(mm)614
r(min.)(mm)6
r1(min.)(mm)6
Basic load ratings : Cr(kN)14100
Basic load ratings : C0r(kN)32100
Fatigue load limit : Cu(kN)2820

Mounting dimensions,weight (reference)

da(min.)(mm)573 mm
Da(max.)(mm)782 mm
da(min.)(mm)744 mm
ra(max.)(mm)5 mm
rb(max.)(mm)5 mm
Mass(Refer.)(kg)1090 kg
JTEKT

2026/07/18