Influence of lubricants on plain bearing performance: Evaluation of bearing performance with polymer-containing oils

Influence of polymer additives on friction in fluid-film bearings: Theoretical view on experimental results by Moritsugu Kasai et al.

“…This decrease was explained by Ksai et al. 4 by linking it with partial rupture of long molecule chains of PMA.…”

“…In order to keep samples relatively equal, the PAO oils with the same mixture ratio and the lower viscosity of 2 and 4 mm 2 /s at 100 ℃ were used to make the polymer-containing oils. Thus, viscosity of all oil samples was approximately 9 mm 2 /s at 80 ℃ 4 (Table 1). Viscosity and density were measured before and after each bearing tests.…”

“…In the search for new energy-efficient lubricants, various polymer additives, 4–8 nanoadditives 9–12 and their compositions 13,14 are used as viscosity modifiers for base fluids. The most important role of polymer additives is the decrease of the temperature effect on viscosity.…”

“…Kasai et al. 4 carried out research using high-precision equipment and the results are shown in detail. 29–31 In our opinion, two questions, the answer to which Kasai et al.…”

An analytical approach towards EHD analysis of connecting-rod bearing

“…The introduction of a range of micro-fabrication techniques coupled with developments in materials design has had a profound effect on the resurgence of tribological applications at the friction levels [1]. Competition in the automotive industry as well as the requirements of customers requires manufacturers to reduce pollution and consumption while improving engine performance [2]. In this context many experimental and numerical studies were developed within this research area.…”