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


Bearing No. 81FC6130W

Specification data (main dimensions, etc.)

d(mm)406.4
D(mm)609.6
B(mm)304.8
C(mm)304.8
Fw(mm)460
r(min.)(mm)5
r1(min.)(mm)5
Basic load ratings : Cr(kN)4710
Basic load ratings : C0r(kN)8750
Fatigue load limit : Cu(kN)868

Mounting dimensions,weight (reference)

da(min.)(mm)429 mm
Da(max.)(mm)587 mm
da(min.)(mm)556 mm
ra(max.)(mm)4 mm
rb(max.)(mm)4 mm
Mass(Refer.)(kg)307 kg
JTEKT

2026/07/19