| abstract |
The guiding means for the mechanical parts consists of two parts intended for sliding bearing with one another. One of the two parts is a sliding part (11) with a smooth functional, i.e. friction, surface, and the other part, the perforated part (8) with at least one functional, i.e. friction, surface (7) comprises protruding cavities (9) for receiving a grease (4) of a paste type comprising a soap type component, an oil type component and an extreme pressure additive. The wetting angle (.theta.) Between the functional surface of the sliding part (11) and the grease (4) is 20.degree. to 40.degree. and the material of the perforated portion (8) is selected such that the wetting angle (.theta.) between the functional surface of the perforated portion (8) and the grease (4) is 45.degree. The device may be a slideway (2) / runner (1), a shaft (13) / bearing type, a ball type (15) / sleeve (16) and the like. |