ASSEMBLY OF MUTUALLY CO-OPERATING MACHINE PARTS, LUBRICATED WITH BIOLOGICALLY DECOMPOSABLE LUBRICANT

摘要

The present invention is related to the modification of mutually co-operating machine parts, in particular those surfaces of such parts, which are exposed to friction and wear, that even in such loading conditions, in which previously for the purposes of decreasing of friction coefficient and preventing of wear various mineral or synthetic lubricants had to be used, a sufficiently efficient lubrication could also be achieved by means of biologically decomposable lubricants, especially oils of plant sources and/or saturated and/or non-saturated esters, without reduction of efficiency and reliability of the lubrication as such. According to the invention, at least one of the said parts is equipped with the DLC-coating (diamond-like carbon), which leads to essential reduction of friction at least in the so-called boundary-friction conditions, and consequently also to decreasing of temperature, which normally has negative impact to durability of the lubricants, so that a biologically decomposable lubricant can then be applied either with or without included additives on the basis of biologically acceptable substances.