Investigations of porous bearings at shaft variable rotation direction

The aim of the work presented was to determine operating characteristics of porous bearings at shaft variable rotation direction. Constructed for this purpose a stand band makes possible measurement of temperature of investigated bearings, sudden change of load, continuous change of shaft rotation direction and of rotational speed and measurement of moment of friction. The first stage of investigations was the determination of selected physical properties of given products. Operational characteristics of bearings were determined in the second stage. The results obtained confirm the advantages of porous bearings and can be treated as an introduction to a wider programme of investigations.