| 摘要 |
A hub-bearing unit ( 10 ) for the wheel of a motor vehicle includes a hub ( 11 ) with a radial flange ( 13 ) and a central tubular portion ( 12 ) having an outer cylindrical surface ( 12 a), and a bearing unit ( 15 ) with a dual set of rolling elements ( 16, 17 ) radially interposed between an outer, stationary bearing race ( 18 ) and first and second radially inner bearing races ( 19, 20 ) located side to side on the cylindrical outer surface ( 12 a) of the tubular portion ( 12 ) of the hub. The hub forms a conical shoulder surface ( 21 ) diverging in an axially outer direction, and the first inner bearing race ( 19 ) has a conical surface ( 22 ) abutting against the conical shoulder surface ( 21 ) of the hub.
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