| 摘要 |
<p>PROBLEM TO BE SOLVED: To excellently prevent abrasion powder from depositing in a spherical recessed part forming a space to keep a lubricant, even if its capacity is enlarged. SOLUTION: A hemispherical shoe 1 is provided with an end surface 1B being in slidable contact with a swash plate 3 and a hemispherical surface 1A being in slidable contact with the hemispherical recessed part 2A of a piston 2. Since a spherical recessed part 1C is formed at the top part of the hemispherical surface 1A, a space 4 to store a lubricant is formed between the spherical recessed part 1C and the hemisphericai recessed part 2A.</p> |
