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


Bearing No. NH2305R

Specification data (main dimensions, etc.)

d(mm)25
D(mm)62
B(mm)24
r(min.)(mm)1.1
r1(min.)(mm)1.1
Fw(mm)34
Ew(mm)-
Basic load ratings : Cr(kN)71.2
Basic load ratings : C0r(kN)56.1
Fatigue load limit : Cu(kN)7.50
Limiting speeds(Grease lub.)(min-1)9100
Limiting speeds(Oil lub.)(min-1)14000
sd1(mm)38.2
B1(mm)4
B2(mm)8

Mounting dimensions,weight (reference)

da(min.)(mm)31.5 mm
db(min.)(mm)- mm
db(max.)(mm)- mm
dc(min.)(mm)- mm
dd(min.)(mm)- mm
Da(max.)(mm)55.5 mm
Db(max.)(mm)- mm
Db(min.)(mm)- mm
ra(max.)(mm)1 mm
rb(max.)(mm)1 mm
Mass(Refer.)(kg)0.385 kg
JTEKT

2026/06/30