Prediction of film thickness in starved EHL point contacts using two-phase flow CFD model
In grease lubricated rolling contacts, the oil bleeding from the grease bulk forms an
elastohydrodynamic lubricating (EHL) film. When the amount of bled oil at the contact inlet is …
elastohydrodynamic lubricating (EHL) film. When the amount of bled oil at the contact inlet is …
Numerical investigation of effects on replenishment in rolling point contacts using CFD simulations
A lubricating film prevents a rolling bearing from high friction and wear by separating the
contacting surfaces. In grease lubricated contacts the bled oil induces a hydrodynamic film …
contacting surfaces. In grease lubricated contacts the bled oil induces a hydrodynamic film …
[HTML][HTML] Some rheological properties of plastic greases by Carreau-Yasuda model
M Wozniak, A Rylski, M Lason-Rydel… - Tribology …, 2023 - Elsevier
Various greases are often used for lubrication of various roller bearing and more seldom for
slide bearings operating under rather lower speed values, when the mixed or boundary …
slide bearings operating under rather lower speed values, when the mixed or boundary …
[HTML][HTML] Prediction of bleeding behavior and film thickness evolution in grease lubricated rolling contacts
While a rolling element bearing is operating, the lubricating film is desired to maintain a
sufficient thickness to avoid asperity contact between surfaces. When using grease as …
sufficient thickness to avoid asperity contact between surfaces. When using grease as …
Origin of the tribofilm from MoS2 nanoparticle oil additives: Dependence of oil film thickness on particle aggregation in rolling point contact
H Wu, L Wang, G Dong - Friction, 2021 - Springer
The lubrication effectiveness of MoS 2 nanoparticles as an oil additive remains unclear,
restricting its application in industry to reduce friction. The goal of this work was to explore …
restricting its application in industry to reduce friction. The goal of this work was to explore …
[HTML][HTML] Investigation of tribological behavior of lubricating greases composed of different bio-based polymer thickeners
One commonly used lubricant in rolling bearings is grease, which consists of base oil,
thickener and small amounts of additives. Commercial greases are mostly produced from …
thickener and small amounts of additives. Commercial greases are mostly produced from …
[HTML][HTML] Effect of surface texture positioning in grease lubricated contacts
It is generally established that use of well-designed artificially enhanced surfaces in certain
lubricated conjunctions can potentially improve the tribological performance under specific …
lubricated conjunctions can potentially improve the tribological performance under specific …
Microstructure characterization of degraded grease in axle roller bearings
Aged mineral-oil-based, lithium-hydroxystearate-thickened grease was collected from used
axle spherical roller bearings, which were used for urban commuter trains. Three types of …
axle spherical roller bearings, which were used for urban commuter trains. Three types of …
Study on factors influencing film formation of grease and calculation model for grease film thickness
Z Zhang, Y Wang, J Lin, D Wang - Lubricants, 2022 - mdpi.com
The grease film thickness was measured in fully flooded elastohydrodynamic lubrication,
and the influence of rolling speed, load, consistency, base oil type and thickener type on …
and the influence of rolling speed, load, consistency, base oil type and thickener type on …
Novel in-situ observation of the grease constituents in elastohydrodynamic contacts by fluorescence microscopy
Grease is important lubricant for ball bearings as it is used much more often than oil.
However, mechanism of the lubrication is not completely clear, especially concerning the …
However, mechanism of the lubrication is not completely clear, especially concerning the …