| 摘要 |
A rotary assembly (A) comprises a first element (R) rotating on a second element (B) around the axis (X-X′) of rotation, at least one bearing (2, 4) arranged between the first and second elements (R, B), and at least one sealing element (6, 8) arranged between the first element (R) and the second element (B). The sealing elements (6, 8) are received in peripheral grooves (12) arranged in the first element (R). The sealing element (6) comprises at least one sealing rib (62) arranged on the surface (10) of the second element (B). The first element (R) comprises an extraction groove (18) formed on the radial surface (16) of the first element (R), forming an empty space (22) below the inner surface (68) of the sealing element (6), and making an axial approach from the axial end surface (14) of the first element (R) to the empty space (22). |
