Koyo
FOR REFERENCE ONLY
  • Cylindrical roller bearings
  • Single-row
  • NN
  • Tapered type
>

Bearing No. NN3084K

Specifications
(Boundary dimensions ...etc)

d(mm)420
D(mm)620
B(mm)150
r(min.)(mm)5
Fw(mm)-
Ew(mm)570
Basic load ratings : Cr(kN)2900
Basic load ratings : C0r(kN)4570
Fatigue load limit : Cu(kN)449
Limiting speeds(Grease lub.)(min-1)670
Limiting speeds(Oil lub.)(min-1)800

Mounting dimensions

da(min.)(mm)440
da(max.)(mm)-
db(min.)(mm)-
Da(max.)(mm)600
Da(min.)(mm)574
ra(max.)(mm)4

Refer.

(Refer.)Mass(kg) 149
JTEKT

2025/06/01