| 摘要 |
The invention relates to a sealing arrangement of a wheel bearing (2) having a first bearing part (3) and a second bearing part (5) that is integrally connected to a wheel bearing flange (7), between which rolling bodies are guided. The sealing arrangement (1) comprises the following: a splash plate (8) designed as a pre-seal, which is supported on an axially and radially oriented contour of the second bearing part (5); a support element (11) that is connected to the first bearing part (3), wherein an elastic element (12) is provided on the support element (11). The elastic element (12) has at least one sealing lip (13). A cavity (17) is formed between the first bearing part (3) and the second bearing part (5), which is limited by means of the support element (11) and/or the elastic element (12). In the cavity (17), a cavity pressure is present, wherein at least one sealing lip (13) has two sealing ribs (14, 15) that are radially spaced apart from one another. The sealing ribs (14, 15) are designed such that depending on the cavity pressure ratio in the cavity (17), either a first sealing rib (14) or a second sealing rib (15) rests against the splash plate (8). |
