Angular momentum pumps are very often applied onboard ships. These pumps are used in cooling circuits of
medium and high power engines, power plant boilers as well as bilge, ballast and fire installations. Such an extensive
use of angular momentum pumps on board is connected with their numerous advantages. However during operation
the wear of marine hull, the rotor and shaft seals takes place. The research attempts to increase the service life of
shafts The article presents the research results referring to the analysis of the influence of finish treatment (finishing
turning, grinding, burnishing) on the friction of steel applied to marine pump shafts. The research was performed on
a roller 39 mm in diameter made of 304L stainless steel. The finish tooling of pump shaft pins was carry out on
a universal centre lathe. The finish turning process was carried out by means of a WNMG WF 080408 Sandvik
Coromant cutting tool with replaceable inserts. The grinding process was performed by grinding attachment for
lathes. The 1-80x10x32-99C 80-N V grinding wheel was used for the process. The process of burnishing was done by
SRMD single roll burnishing tool by Yamato. The burnishing process was carried out at the following technological
parameters: burnishing force 1.1 kN, burnishing speed 35 m/min, feed 0.13 mm/rev. In addition, the influence of the
number of burnishing tool passes on the friction was determined. The paper will present the research results of test on
the wear intensity examination of samples after finish machining. The experiment was performed on block – roll tester
machine.
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