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

Bearing No. NNU4944K

Specifications
(Boundary dimensions ...etc)

d(mm)220
D(mm)300
B(mm)80
r(min.)(mm)2.1
Fw(mm)244
Ew(mm)-
Basic load ratings : Cr(kN)701
Basic load ratings : C0r(kN)1220
Fatigue load limit : Cu(kN)145
Limiting speeds(Grease lub.)(min-1)1700
Limiting speeds(Oil lub.)(min-1)2000

Mounting dimensions

da(min.)(mm)231
da(max.)(mm)241
db(min.)(mm)248
Da(max.)(mm)289
Da(min.)(mm)-
ra(max.)(mm)2

Refer.

(Refer.)Mass(kg) 16.0
JTEKT

2025/06/01