Sliding member
AssigneeDaido Metal Company Ltd.
InventorsMasahito Fujita, Hideo Tsuji, Takayuki Shibayama
Life of this patent
Estimating the term…
Abstract
In order to improve conformability of a sliding surface of a sliding member in an early state of sliding, there is provided a sliding member in which a plurality of holes are formed on a sliding surface, and the diameters (or the opening area) of the holes on the sliding surface are arranged so as to become gradually large as it gets closer to both ends in an axial direction from the center side in the axial direction. This feature decreases the pressurized area as it gets closer to the ends of the sliding surface so that it wears at an early stage, whereby a conformed surface following the deflection of a mating member is provided.
Claims12
A sliding member for supporting a shaft comprising:
- a sliding surface;
- and
- a plurality of recesses provided in an end portion in an axial direction in the sliding surface, wherein
- the recesses are arranged in said end portion so that the total opening area per unit area gradually increases from the center side toward the end side in the axial direction of the sliding surface,
- wherein the recess comprises a hole or a groove having a sectional form which is tapered off toward the bottom thereof.
A sliding member for supporting a shaft comprising:
- a sliding surface;
- and
- a plurality of recesses provided in an end portion in an axial direction on the sliding surface, the recesses being arranged in said end portion so that the total opening area per unit area gradually increases from the center side toward the end side in the axial direction of the sliding surface,
- wherein the recess comprises a hole of which the mean diameter is smaller than that of a hole closer to the end side of the sliding surface.
A sliding member for supporting a shaft comprising:
- a sliding surface;
- and
- a plurality of recesses provided in an end portion in an axial direction on the sliding surface, the recesses being arranged in said end portion so that the total opening area per unit area gradually increases from the center side toward the end side in the axial direction of the sliding surface,
- wherein the recess comprises a hole of which the mean diameter is between 1 and 100 μm.
Dependencies are inferred from the claim text.