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

Bearing No. WML4008 ZZ

Specifications
(Boundary dimensions ...etc)

d(mm)4
D(mm)8
B(mm)3
r(min.)(mm)0.08
Basic load ratings : Cr(kN)0.490
Basic load ratings : C0r(kN)0.14
Fatigue load limit : Cu(kN)0.004
factor : f0()14.6
Limiting speeds(Grease lub.)(min-1)61000
Limiting speeds(Oil lub.)(min-1)-

Mounting dimensions

da(min.)(mm)4.8
Da(max.)(mm)7.2
ra(max.)(mm)0.08

Refer.

(Refer.)Mass(g) 0.4
JTEKT

2025/11/03