A FOUR-BALL MACHINE FOR TESTING ANTIWEAR, EXTREME-PRESSURE PROPERTIES, AND SURFACE FATIGUE LIFE WITH A POSSIBLILITY TO INCREASE THE LUBRICANT TEMPERATURE
Journal Title: Tribologia - Year 2009, Vol 223, Issue 1
Abstract
The authors present a new four-ball machine developed within the scope of the Multi-Year Programme PW-004 Development of innovative systems of manufacturing and maintenance 20042008, coordinated by the Institute for Sustainable Technologies National Research Institute in Radom. The main difference between the new device and the ones having been manufactured by ITeE PIB so far is related to a significant improvement of the research capabilities. The previously manufactured four-ball machine, known as T-02 tribotester, was intended for testing antiwear (AW) and extreme-pressure (EP) properties of lubricants. Another four-ball tribotester, denoted as T-03, was intended only for determination of the surface fatigue life. Neither T-02, nor T-03 machine made it possible to perform runs at an increased and controlled lubricant temperature. The new machine, denoted as T-02U, enables the user to perform all the mentioned tests, both for lubricants and engineering materials. A genesis of the idea of the new four-ball machine, its main units, technical specifications, realized test methods, chosen results of verification testing, potential areas of application, as well as first implementations in industrial and scientific laboratories, are presented.<br/><br/>
Authors and Affiliations
Remigiusz Michalczewski, Marian Szczerek, Waldemar Tuszyński, Jan Wulczyński
Keywords
Related Articles
- EP ID EP516606
- DOI -
- Views 50
- Downloads 0
THE QUESTIONS OF SPINNING FRICTION IN AN ELASTIC POINT OF CONTACT
The paper presents tangential stress as a result of friction change in the stress distribution in upper surface layer. The increase of this stress may be up to 100% at field of acting greater to 30%. It causes plastic de...
SLIDING WPŁYW TEKSTUROWANIA POWIERZCHNI NA OPORY TARCIA UKŁADU STAL–BRĄZ W WARUNKACH SMAROWANIA
Przeprowadzono badania tribologiczne w układzie rolka-klocek. Powierzchnie klocka (wycinka pierścienia) z brązu CuSn10P o twardości 138 HB zawierały sferyczne kieszenie smarowe uzyskane metodą wygniatania. Rolki wykonano...
ANALYSIS OF THE OIL FLOW AND LUBRICATION QUALITY ON THE POWER SHIFT OF DISC CLUTCH GEARBOXES
The study examined the oil flow openings situated inside the shaft in planes parallel and perpendicular to its axis. These holes, which different cross sections, are used to supply oil to the piston, the space between th...
THE ANALYSIS OF THE SELECTED PROCESSES OF THERMO-CHEMICAL HEAT TREATMENT OF 20MnCr5 STEEL IN THE CONTEXT OF ABRASIVE WEAR
This paper presents the results of tribological tests performed on a T-11 pin-on-disc type, which made it possible to determine the intensity of abrasive wear of steel 20MnCr5 subjected to selected thermo-chemical heat t...
THE EFFECT OF HELICAL GROOVE PRESENCE ON THE TRIBOLOGICAL PERFORMANCE OF JOURNAL BEARINGS
The hydrodynamic bearings could suffer critical damages operating in contaminated environments that cause machine breakdown. In such hard operating conditions, hydrodynamic bearings with grooved journals are less sensiti...