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Description Typical “Stribeck” curves obtained by Martens showing coefficient of friction as a function of pressure in kgf/cm² (even if it looks like kg/mm²) at v = 0.5 m/s using water quenched, hardened steel shaft 99.6 mm diameter and 70.2 mm long, running in bearing shell made from “Rotguß” (red brass, a Cu-Sn-Zn cast alloy) with “Rüböl” (rape oil). The parameter lines represent temperature in °C.
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Source

Adolf Martens Schmieröluntersuchungen (Investigations on lubrication oils) Part I: Mitteilungen aus den Königlichen technischen Versuchsanstalten zu Berlin, Ergänzungsheft III 1888, p. 1-37, Verlag von Julius Springer, Berlin and Part II: Mitteilungen aus den Königlichen technischen Versuchsanstalten zu Berlin, Ergänzungsheft V, 1889, p. 1-57, Verlag von Julius Springer, Berlin

(Note: These files can be downloaded from the archived 2015 website of BAM: https://web.archive.org/web/20151011094512/http://www.bam.de/de/ueber_uns/geschichte/adolf_martens.htm)
Author Adolf Martens
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(Reusing this file)		 The author died 1914. 71 years after the death of the author are figures free.

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Date/Time Dimensions User Comment
2009-07-14 10:48:01 378 × 377 Mwoydt {.{Information |Description = Typical “Stribeck” curves obtained by Martens showing coefficient of friction as a function of “pressure” (water quenched, hardened steel shaft 99.6 mm diameter, running in bearing shell made from “Rotguß” (r

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Date/TimeThumbnailDimensionsUserComment
current12:53, 2 October 2019Thumbnail for version as of 12:53, 2 October 2019671 × 670 (98 KB)Theoschhigher resolution
10:09, 4 March 2017Thumbnail for version as of 10:09, 4 March 2017378 × 377 (30 KB)FastilyCloneTransferred from en.wikipedia (MTC!)

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