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


Bearing No. BK0408

Specification data (main dimensions, etc.)

Fw(mm)4
D(mm)8
C(mm)8
C3(min.)(mm)6.40
r(min.)(mm)0.40
Basic load ratings : Cr(kN)1.83
Basic load ratings : C0r(kN)1.32
Fatigue load limit : Cu(kN)0.200
Limiting speeds(Grease lub.)(min-1)25000
Limiting speeds(Oil lub.)(min-1)39000

Mounting dimensions,weight (reference)

Mass(Refer.)(kg)0.002 kg
JTEKT

2026/08/12