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

Bearing No. NN3052K

Specifications
(Boundary dimensions ...etc)

d(mm)260
D(mm)400
B(mm)104
r(min.)(mm)4
Fw(mm)-
Ew(mm)364
Basic load ratings : Cr(kN)1290
Basic load ratings : C0r(kN)1830
Fatigue load limit : Cu(kN)204
Limiting speeds(Grease lub.)(min-1)1300
Limiting speeds(Oil lub.)(min-1)1500

Mounting dimensions

da(min.)(mm)276
da(max.)(mm)-
db(min.)(mm)-
Da(max.)(mm)384
Da(min.)(mm)367
ra(max.)(mm)3

Refer.

(Refer.)Mass(kg) 46.0
JTEKT

2025/06/01