Koyo
FOR REFERENCE ONLY
  • Deep groove ball bearings
  • Extra-small, miniature ball bearings
  • Standard type
  • Shielded ZZ


Bearing No. WML8012 ZZ

Specification data (main dimensions, etc.)

d(mm)8
D(mm)12
B(mm)3.5
r(min.)(mm)0.08
Basic load ratings : Cr(kN)0.680
Basic load ratings : C0r(kN)0.27
Fatigue load limit : Cu(kN)0.007
factor : f016.4
Limiting speeds(Grease lub.)(min-1)47000
Limiting speeds(Oil lub.)(min-1)-

Mounting dimensions,weight (reference)

da(min.)(mm)8.8 mm
Da(max.)(mm)11.2 mm
ra(max.)(mm)0.08 mm
Mass(Refer.)(kg)0.8 kg
JTEKT

2026/07/07