| 摘要 |
A pneumatic bearing arrangement comprising an outer element and an inner element which both have generally conical configurations. The elements also have concave and convex bearing surfaces, respectively. The elements are disposed in generally concentric relation and define a generally conical bearing space therebetween. A plurality of nozzles are provided on the elements and open adjacent to the bearing surfaces of the elements. A shaft having a generally conical journal member with an inner and outer face is rotatably supported by the bearing space such that a gap exists between the journal and the inner and outer bearing surfaces. When air is jetted into the bearing space through the nozzle air films are created for maintaining the journal floating between the bearing surfaces without contacting either of the surfaces. The outer element, inner element and journal member can be formed with a substantially bell-shaped configuration to increase the bearing surface for both thrust and radial loads. A plurality of journal members can be provided at spaced locations along a shaft which are accommodated by respective pairs of outer and inner elements spaced along the arrangement. The journal members are maintained in a balanced position within the bearing spaces.
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