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

Bearing No. NH308R

Specifications
(Boundary dimensions ...etc)

d(mm)40
D(mm)90
B(mm)23
r(min.)(mm)1.5
r1(min.)(mm)1.5
Fw(mm)52
Ew(mm)-
Basic load ratings : Cr(kN)104
Basic load ratings : C0r(kN)81.5
Fatigue load limit : Cu(kN)11.0
Limiting speeds(Grease lub.)(min-1)6800
Limiting speeds(Oil lub.)(min-1)9100
sd1(mm)57.7
B1(mm)7
B2(mm)11

Mounting dimensions

da(min.)(mm)48
db(min.)(mm)-
db(max.)(mm)-
dc(min.)(mm)-
dd(min.)(mm)-
Da(max.)(mm)82
Db(max.)(mm)-
Db(min.)(mm)-
ra(max.)(mm)1.5
rb(max.)(mm)1.5

Refer.

(Refer.)Mass(kg) 0.775
JTEKT

2025/05/10