| 摘要 |
<p>The unit comprises a joining element suitable for connecting one end of a shaft to an element for clamping and provided with a series of active surfaces which comprise a portion of the lateral surface of a pyramid and are prearranged in order to be coupled to the corresponding active surfaces produced on said element for clamping or on said second end, the aforesaid connection element being provided with at least one rolling track (ball race) for a ring of rolling bodies. The unit also comprises a ring of rolling bodies interposed between said connection element and a ring provided also with a rolling track, said rolling bodies being suitable for rolling over the aforesaid tracks of the connection element and of the ring and said ring being elastically supported with respect to a frame.</p> |
