Koyo
FOR REFERENCE ONLY
  • Cylindrical roller bearings
  • Single-row
  • NF


Bearing No. NF260

Specification data (main dimensions, etc.)

d(mm)300
D(mm)540
B(mm)85
r(min.)(mm)5
r1(min.)(mm)5
Fw(mm)-
Ew(mm)476
Basic load ratings : Cr(kN)1690
Basic load ratings : C0r(kN)1960
Fatigue load limit : Cu(kN)206
Limiting speeds(Grease lub.)(min-1)920
Limiting speeds(Oil lub.)(min-1)1100
sd1(mm)-
B1(mm)-
B2(mm)-

Mounting dimensions,weight (reference)

da(min.)(mm)320 mm
db(min.)(mm)- mm
db(max.)(mm)- mm
dc(min.)(mm)- mm
dd(min.)(mm)- mm
Da(max.)(mm)- mm
Db(max.)(mm)520 mm
Db(min.)(mm)487 mm
ra(max.)(mm)4 mm
rb(max.)(mm)4 mm
Mass(Refer.)(kg)90.8 kg
JTEKT

2026/06/29