| 摘要 |
A wheel assembly includes: a hub (116) adapted to be mounted for rotation about an axis and defining a housing for enclosing a gear set (G), the hub having a generally cylindrical outer surface; a ring (118) surrounding the outer surface of the hub; and a generally cylindrical rim (22A) surrounding at least a portion of the hub, the rim adapted to carry a tire and having a radially inwardly extending mounting flange (24A). The mounting flange is fastened to the ring.
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