Friction and Wear of Flange and Shaft in Compressor under the Environments of PAG Oil and Carbon Dioxide as a Refrigerant

Lee, Kyu-Sun; Jeon, Hong Gyu; Cho, Sung Oug; Lee, Young Ze

doi:10.4028/0-87849-440-5.1059

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2016

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“…Martins et al [4] compared the influence of biodegradable ester and mineral oil in terms of friction coefficient between the gear teeth and the mass loss. Lee et al [5] evaluated the friction forces and wear amounts in boundary lubricated sliding condition using a pin-on-disk tester to evaluate a PAG Oil. Mia et al [6] tested the tribological properties (low-temperature behavior, bulk property, frictional coefficient and wear behavior) of PAO oils and a mineral oil to prove that PAO oils exhibited better frictional property and low-temperature behavior.…”

Section: Introductionmentioning

confidence: 99%

Friction behavior and wear protection ability of selected base lubricants

Zhang

Zhao

et al. 2016

Friction

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This paper reports a comparative study on the tribological characteristics of base oils in four groups, synthetic esters, mineral oils, polymerized alpha olefins (PAOs), and poly alkylene glycols (PAGs), by means of viscosity, friction, and wear measurements. Friction coefficients for the lubricants in each group, measured with a pin-on-disk tribometer, are summarized in the form of Stribeck curves. Wear of the disk specimens due to rubbing in the interfaces lubricated with the tested oils is evaluated by surface topographic changes. The results indicate that for surfaces of similar roughness, viscosity has the predominant influences on the friction and wear-protection properties of these lubricants.

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Section: Introductionmentioning

confidence: 99%