| 摘要 |
PURPOSE:To obtain the title bearing for electrical equipment parts of automobile, preventing peel occurring in a rolling and running face of bearing, making a life of bearing long by sealing a grease mixed with powder having formed an inactivated coating film in the rolling and running face of bearing. CONSTITUTION:A grease mixed with powder composed of powder of metal such as Cu or Zn, powder of oxide such as FeO, Fe3O4, CuO or CuO2 or powder of sulfide such as FeSO4, Fe2(SO4)3 or ZnSO4 is sealed in a rolling and running face of an inner and outer wheels of bearing and an inactivated coating film such as Cu coating film or oxide coating film is formed to give the objective bearing. |
