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

Bearing No. NH421

Specifications
(Boundary dimensions ...etc)

d(mm)105
D(mm)260
B(mm)60
r(min.)(mm)4
r1(min.)(mm)4
Fw(mm)144.5
Ew(mm)-
Basic load ratings : Cr(kN)581
Basic load ratings : C0r(kN)510
Fatigue load limit : Cu(kN)67.6
Limiting speeds(Grease lub.)(min-1)2400
Limiting speeds(Oil lub.)(min-1)3100
sd1(mm)159.5
B1(mm)16
B2(mm)27

Mounting dimensions

da(min.)(mm)121
db(min.)(mm)-
db(max.)(mm)-
dc(min.)(mm)-
dd(min.)(mm)-
Da(max.)(mm)244
Db(max.)(mm)-
Db(min.)(mm)-
ra(max.)(mm)3
rb(max.)(mm)3

Refer.

(Refer.)Mass(kg) 21.05
JTEKT

2025/06/01