Koyo
FOR REFERENCE ONLY
  • Needle roller bearings
  • Drawn cup needle roller bearings
  • Metric series, caged


Bearing No. HK4012

Specification data (main dimensions, etc.)

Fw(mm)40
D(mm)47
C(mm)12
r(min.)(mm)1
Basic load ratings : Cr(kN)14.7
Basic load ratings : C0r(kN)25.3
Fatigue load limit : Cu(kN)3.40
Limiting speeds(Grease lub.)(min-1)5200
Limiting speeds(Oil lub.)(min-1)7900

Mounting dimensions,weight (reference)

Mass(Refer.)(kg)0.033 kg
JTEKT

2026/07/07