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


Bearing No. NH2228

Specification data (main dimensions, etc.)

d(mm)140
D(mm)250
B(mm)68
r(min.)(mm)3
r1(min.)(mm)3
Fw(mm)169
Ew(mm)-
Basic load ratings : Cr(kN)583
Basic load ratings : C0r(kN)671
Fatigue load limit : Cu(kN)84.3
Limiting speeds(Grease lub.)(min-1)2200
Limiting speeds(Oil lub.)(min-1)2900
sd1(mm)179.5
B1(mm)11
B2(mm)25

Mounting dimensions,weight (reference)

da(min.)(mm)153 mm
db(min.)(mm)- mm
db(max.)(mm)- mm
dc(min.)(mm)- mm
dd(min.)(mm)- mm
Da(max.)(mm)237 mm
Db(max.)(mm)- mm
Db(min.)(mm)- mm
ra(max.)(mm)2.5 mm
rb(max.)(mm)2.5 mm
Mass(Refer.)(kg)15.6 kg
JTEKT

2026/07/01