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

Bearing No. NH305R

Specifications
(Boundary dimensions ...etc)

d(mm)25
D(mm)62
B(mm)17
r(min.)(mm)1.1
r1(min.)(mm)1.1
Fw(mm)34
Ew(mm)-
Basic load ratings : Cr(kN)51.9
Basic load ratings : C0r(kN)37.4
Fatigue load limit : Cu(kN)4.85
Limiting speeds(Grease lub.)(min-1)10000
Limiting speeds(Oil lub.)(min-1)14000
sd1(mm)38.2
B1(mm)4
B2(mm)7

Mounting dimensions

da(min.)(mm)31.5
db(min.)(mm)-
db(max.)(mm)-
dc(min.)(mm)-
dd(min.)(mm)-
Da(max.)(mm)55.5
Db(max.)(mm)-
Db(min.)(mm)-
ra(max.)(mm)1
rb(max.)(mm)1

Refer.

(Refer.)Mass(kg) 0.278
JTEKT

2025/06/01