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

Bearing No. NNU4940K

Specifications
(Boundary dimensions ...etc)

d(mm)200
D(mm)280
B(mm)80
r(min.)(mm)2.1
Fw(mm)223
Ew(mm)-
Basic load ratings : Cr(kN)636
Basic load ratings : C0r(kN)1050
Fatigue load limit : Cu(kN)125
Limiting speeds(Grease lub.)(min-1)1900
Limiting speeds(Oil lub.)(min-1)2300

Mounting dimensions

da(min.)(mm)211
da(max.)(mm)219.5
db(min.)(mm)228
Da(max.)(mm)269
Da(min.)(mm)-
ra(max.)(mm)2

Refer.

(Refer.)Mass(kg) 14.7
JTEKT

2025/06/01