| 摘要 |
A bearing assembly (7) that comprises a first bearing (10), a second bearing (11), a spring (12) applying a preload to each of the bearings (10, 11), and a sleeve (13) surrounding the spring (12) and the bearings (10, 11). The sleeve (13) comprises an end portion that extends axially beyond the first bearing (10), and the end portion comprises a step down in outer diameter that defines a seat (19) for an o-ring (4). |
