Sliding component
There is provided a sliding component capable of effectively retaining a fine wear product in a recessed strip portion. In a sliding component that is disposed at a location of relative rotation of a rotating machine and that slides relative to a counterpart sliding member, a recessed strip portion is formed on a sliding surface of the sliding component, and the recessed strip portion is provided with a step having a difference in height, which traps a wear product.
1 . A sliding component for being disposed at a location of relative rotation of a rotating machine and sliding relative to a counterpart sliding member,
wherein the sliding component comprises a recessed groove portion is formed on a sliding surface of the sliding component,
wherein the recessed groove portion is provided with a step having a difference in height, which is configured to trap a wear product,
wherein the recessed groove portion has an endless annular shape, and
wherein the step is formed by a dimple which is disposed on a bottom portion of the recessed groove portion and having a bottom surface, or a wall portion which is erected from the bottom portion of the recessed groove portion.
2 . The sliding component according to claim 1 ,
wherein a plurality of the recessed groove portions are independently provided in a radial direction.
3 . The sliding component according to claim 1 ,
wherein a bottom portion of the recessed groove portion is curved to be further recessed in a recess direction of the recessed groove portion.
4 . The sliding component according to claim 1 ,
wherein a plurality of the steps are disposed spaced apart from each other in a longitudinal direction of the recessed strip portion.
5 . The sliding component according to claim 1 ,
wherein the sliding component is made of SiC.
6 . The sliding component according to claim 2 ,
wherein a dimple is disposed on a bottom portion of the recessed groove portion, and a part of the dimple forms the step.
7 . The sliding component according to claim 6 ,
wherein the dimple has a circular shape when viewed in an axial direction.
8 . The sliding component according to claim 3 ,
wherein a dimple is disposed on a bottom portion of the recessed groove portion, and a part of the dimple forms the step.
9 . The sliding component according to claim 8 ,
wherein the dimple has a circular shape when viewed in an axial direction.
10 . The sliding component according to claim 4 ,
wherein a dimple is disposed on a bottom portion of the recessed groove portion, and a part of the dimple forms the step.
11 . The sliding component according to claim 10 ,
wherein the dimple has a circular shape when viewed in an axial direction.