Koyo
FOR REFERENCE ONLY
  • Needle roller bearings
  • Drawn cup needle roller bearings
  • Metric series, caged
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Bearing No. HK4012

Specifications
(Boundary dimensions ...etc)

Fw(mm)40
D(mm)47
C(mm)12
C3(min.)(mm)
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 inner ring()

Mounting dimensions

Refer.

(Refer.)Mass(kg) 0.033
JTEKT

2025/06/30