| 摘要 |
<p>The shaft has a great length in relation to its diameter, and its two ends are supported by fixed centring units (2a,2b), with an intermediate rotary support (12) in the centre. The intermediate support is situated on one side of the shaft (1). Its position in relation to the centring units is adjusted so that the centre of the shaft is offset relative to a line passing through the centres of the centring units, and is held against the intermediate support by an elastic return force. The intermediate support has at least one rotary supporting element covering one sector of the shaft, leaving another sector free on the opposite side for contact with an outer member.</p> |
