FOR REFERENCE ONLY
  • Needle roller bearings
  • Heavy-duty needle roller bearings
  • Metric series, caged, without inner ring


Bearing No. NK47/20

Specification data (main dimensions, etc.)

Fw(mm)47
D(mm)57
C(mm)20
r(min.)(mm)0.3
Basic load ratings : Cr(kN)30.0
Basic load ratings : C0r(kN)58.5
Fatigue load limit : Cu(kN)9.30
Limiting speeds(Grease lub.)(min-1)5900
Limiting speeds(Oil lub.)(min-1)9000
(Refer.)Mass(kg)0.104?

Mounting dimensions,weight (reference)

Mass(Refer.)(kg)0.104? kg
JTEKT

2026/07/06