Sliding component

A sliding component comprising a first sliding ring and a second sliding ring that slide relative to each other, wherein the first sliding ring and the second sliding ring being disposed between a sealed fluid side space and a leakage side space,

• wherein the first sliding ring has a sliding surface provided with a dynamic pressure generation groove that communicates with the leakage side space,
• the first sliding ring further has an expansion portion configured to permit movement of fluid in the leakage side space to the dynamic pressure generation groove and formed at an edge portion on the leakage side space such that the expansion portion is continuous from the sliding surface of the sliding ring and expanded toward the leakage side space, and
• the expansion portion is provided with an inclined groove continuous with the dynamic pressure generation groove and extending toward the leakage side space.