High speed motor's centrifugal compressor's axial footstep bearing structure

The utility model relates to a mill as the power supply and for the raw materials compressor or the air -blower of air supply to adopting axial thrust bearing to shorten an improvement structure of rotor length. A high speed motor's centrifugal compressor's axial footstep bearing structure which characterized in that: by the back configuration axial thrust bearing who lives the impeller. Further characterized in that air enclosed with axial thrust bearing links together. Including a plurality of air enclosed with axial thrust bearing's concrete configuration structure. Changed prior art fixed round steel sheet ring that stretches out in the pivot of rotor, in the both sides of steel sheet ring configuration axial thrust bearing's structure, changeed that epaxial configuration can be simplified, the compactness, the contraction in length, the ability reinforcing that intrinsically can bear the rotational speed improves the compressor rotational speed, improves the delivery pressure and the power of compressor.