| 摘要 |
A center piece (51) and a flange member (53) are joined to form a second oil passage (102) between the flange member (53) and the intermediate wall section (51c) of the center piece (51). A male thread section (513) is formed on the outer peripheral surface of the circular cylindrical section (51a) of the center piece (51), and a nut member (200) having a female thread section (201) formed on the inner peripheral surface thereof is engaged with the male thread section (513). As a result, the flange member (53) is pressed toward the intermediate wall section (51c) to thereby join the center piece (51) and the flange member (53). Thus, the center piece (51) and the flange member (53) can be joined without play. |
