IMPACT PARAMETERS IN ROLLING CONTACT LUBRICATION

Carmen BUJOREANU

bujor1000@yahoo.com

Viorel PALEU
 

Dept. of Machine Elements & Mechatronics, “Gh. Asachi” Technical University of Iasi, ROMANIA

Abstract. The EHD mechanism is the “miracle mechanism” for life and durability. The key to unlock the mysteries behind oil physical properties and chemical attributes is the identification of the functional regions of a lubricated contact. Some experiments related to a severe wear leading to contact catastrophic damage are presented and emphasize the mean parameters controlling lubrication and failure mechanisms. The test method invokes tribological interactions measured in terms of friction, gentle polishing wear of surface features, adhesive wear events and scuffing. With respect to lubrication and failure mechanisms for a given tribo-contact system, we propose that the key performance parameters are the entraining velocity, the sliding velocity, and temperature.
 

Keywords: lubrication, rolling contact, scuffing, sliding, temperature

References

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2. Nélias D., Nassare F., Flamand L., 1999, « Etude experimentale et theorique du microgrippage dans les contacts elasto-hydrodynamiques, » Rev. Gen. Therm., 36, pp. 26-39.

3. Bujoreanu C., Creţu S.S., 2005, “An Investigation of Scuffing in Angular Contact Ball-Bearings,” J. of the Balkan Tribological Association, vol. II, 4, pp. 521-528.