| 摘要 |
<p>Bearing wheel hub unit (1) provided with a mounting flange (3) which is integral with an inner race (21) of the bearing (2) in order to mount a wheel, and with a centring collar (4) which extends from a frontal surface (31) of the flange (3) itself in order to permit the centring of the wheel in relation to the unit (1) itself; the centring collar (4) being produced, preferably of alloy, in such a way as to be independent of the mounting flange (3), and being assembled with the said flange (3) by means of fixing onto the said frontal surface (31).</p> |
