SURFACE TOPOGRAPHY ANALYSIS OF SLEEVES WITH MICRO-GROOVES OF SLIDE MICRO-BEARINGS

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SURFACE TOPOGRAPHY ANALYSIS OF SLEEVES WITH MICRO-GROOVES OF SLIDE MICRO-BEARINGS

Journal Title: Tribologia - Year 2012, Vol 243, Issue 3

Abstract

This paper presents the sleeve surface topography containing microgrooves measured by virtue of Atomic Force Microscopy NT-206 constructed in MTM Belarus, and a T8000-R60 Hommeltester profile measurement gauge. The topography was generated in 2D and 3D charts for the cross-sections of the considered surface sample. The topography was developed for slide micro-bearing sleeve applied in 2.5" HDD Samsung HM160HI – 5400rpm, 3.5" HDD Seagate Barracuda 7200.10 ST380815AS – 7200 RPM and in computer ventilator Kama Flow SP0825FDB12H. The micro-bearings were exploited for one year at nominal rotational speed for two cases. The first case included continuous operation of 24 hours per day. The second case included interrupted operation, e.g. 15 minutes on and 15 minutes off. By virtue of the results obtained using profile measurement gauge, we can record the quantities, shapes, and location of microgrooves. Moreover, the results obtained using AFM were helpful for roughness assessment and wear surface evaluation.

Authors and Affiliations

Andrzej Miszczak, Krzysztof Wierzcholski

Keywords

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EP ID EP270447
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