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Institute Kemal Kapetanović, University of Zenica , Zenica , Bosnia and Herzegovina
Institute Kemal Kapetanović, University of Zenica , Zenica , Bosnia and Herzegovina
Institute Kemal kapetanović, University of Zenica , Zenica , Bosnia and Herzegovina
Institute Kemal Kapetanović, University of Zenica , Zenica , Bosnia and Herzegovina
Pobjeda d.d. Tešanj , Tešanj , Bosnia and Herzegovina
Oil pump, apropos gear pump is used for lubrication in the automotive industry. In the process of the
engine, and the oil pump, there is rotation of the shaft and without bearing sleeve there would be
„spending”casing which is made of cast iron. The bearing sleeve is mounted in order to reduce wear
and ensure the consistency of the oil pump. The bearing sleeve is a consisted of two parts, namely
made of steel and bronze layer.
In order to confim the quality of the bearing sleeve of the two manufacturers, investigation layer of
bronze on Scanning Electron Microscopy (SEM) and clasic Atomic Absorption Spectrophotometry
(AAS) of chip material bronze was performed. Hardness testing and measurement of thickness layer
was performed, too.
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