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


Bearing No. NU1044

Specification data (main dimensions, etc.)

d(mm)220
D(mm)340
B(mm)56
r(min.)(mm)3
r1(min.)(mm)3
Fw(mm)250
Ew(mm)-
Basic load ratings : Cr(kN)637
Basic load ratings : C0r(kN)748
Fatigue load limit : Cu(kN)88.1
Limiting speeds(Grease lub.)(min-1)1700
Limiting speeds(Oil lub.)(min-1)2000
sd1(mm)-
B1(mm)-
B2(mm)-

Mounting dimensions,weight (reference)

da(min.)(mm)- mm
db(min.)(mm)233 mm
db(max.)(mm)248 mm
dc(min.)(mm)- mm
dd(min.)(mm)- mm
Da(max.)(mm)327 mm
Db(max.)(mm)- mm
Db(min.)(mm)- mm
ra(max.)(mm)2.5 mm
rb(max.)(mm)2.5 mm
Mass(Refer.)(kg)18.5 kg
JTEKT

2026/07/05