| 摘要 |
<p>A pump for pumping liquid from a vessel or the like wherein a driving motor operates a driving shaft extending in a delivery pipe with a delivery rotor in the lower region of the driving shaft. In at least one location the drawing shaft is provided with a resilient bearing of two concentrically arranged annular retainer springs formed from a single piece of metal, the inner annular retainer spring holding a replaceable bearing sleeve through which the driving shaft extends and the outer annular retaining spring being adjacent to and supported by the delivery pipe.</p> |
