Quantifying and Reducing the Effect of Contamination on Rolling Bearing Fatigue Life

Lösche, Thomas; Weigand, Michael

doi:10.4271/952123

Cited by 5 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Consequently, to derive a performance under contamination, a procedure was defined with an application of HRC indentations in the bearing raceways. 11 The predamaging via HRC indentations was done with a constant indentation force of 200 N for all different materials. This is closely related to the actual over-rolling process of particles, which should result in different surface damage responses depending on the material properties.…”

Section: Lifetime Testingmentioning

confidence: 99%

See 1 more Smart Citation

Bearing performance as a function of structure and heat treatment

Blass

Dinkel

Trojahn

2016

Materials Science and Technology

View full text Add to dashboard Cite

The rings of rolling bearings are either through hardened with a martensitic or bainitic structure or case hardened. They differ in cleanliness, structure and residual stresses. The over-rolling fatigue resistance mirrors these differences. Typical results are given for over-rolling conditions causing classical fatigue, surface-initiated failure or failure by white etching cracking. This paper is part of a Themed Issue on Recent developments in bearing steels.

show abstract

Section: Lifetime Testingmentioning

confidence: 99%

“…Therefore, at FAG, a method was derived to circumvent this problem through the predamaging of raceways in a controlled manner. Consequently, to derive a performance under contamination, a procedure was defined with an application of HRC indentations in the bearing raceways 11 …”

Section: Lifetime Testingmentioning

confidence: 99%

Bearing performance as a function of structure and heat treatment

Blass

Dinkel

Trojahn

2016

Materials Science and Technology

View full text Add to dashboard Cite

show abstract

“…Ein anspruchsvolles Problem fur den Walzlagerhersteller ist der Betrieb rnit verschmutzten Schmierstoffen [21]. Dies wird deutlich, wenn man sich die GroBenverhaltnisse vor Auger1 halt, wie dies in Abb.…”

Section: Verschmutzende Betriebsbedingungenunclassified

Wälzverschleiß und ‐ermüdung von Bauteilen und Maßnahmen zu ihrer Einschränkung

Böhmer¹

1998

Materialwissenschaft Werkst

View full text Add to dashboard Cite

Walzbeanspruchte Teile, wie Zahnrlder und Walzlager, unterliegen ganz charakteristischen Beanspruchungen, wie sie in anderen technischen Anwendungen nicht vorkommen. Diese besonderen Bedingungen und ihre Auswirkungen auf die Beanspruchungsverhaltnisse und das Werkstoffverhalten werden ausfuhrlich beschrieben. Vor allem Ingenieuren, die weniger mit dem Thernenkomplex Walzerrniidung und -verschleil3 vertraut sind, sol1 eine ubersichtliche und gestraffte Einfuhrung in dieses Gebiet gegeben werden. Hierzu werden die wichtigsten EinfluRgroRen auf das Verhalten walzbeanspruchter Bauteile, der Ablauf einer eventuellen Schadensinitiierung und die Erscheinungsbilder verschiedener Ausfallsursachen dargestellt. An Beispielen wird gezeigt, wie sich aus der Analyse der Schadigungsablaufe Abhilfemarjnahmen herleiten lassen. Die Literaturhinweise sind so gewahlt, darj sich der interessierte Leser in die einzelnen Themengebiete selbstandig weiter vertiefen kann.Machine parts subjected to rolling contact fatigue, i.e. gears or rolling element bearings, are exposed to a very particular stressing condition. No comparable condition will occur for other technical applications. These typical conditions and their effects on the material behaviour are described comprehensively. An introductional overview for this area of technical knowledge is given, in particular for engineers not so much experienced with respect to this matter. The most important phenomena influencing the behaviour of parts subjected to rolling contact fatigue are presented as well as the physics of damage initiation and the appearance of damaged parts. It is demonstrated exemplarily, how the analysis of the damaging processes can be used to take counter measures. The referencing to the public literature has been done in a way to enable the reader to easily find material for a further improvement of his knowledge for particular items.

show abstract

Pump Testing Strategies and Associated Tribological Considerations-Vane Pump Testing Methods ASTM D 2882, IP281, and DIN 51389

Reichel

1997

Tribology of Hydraulic Pump Testing

View full text Add to dashboard Cite

Various test methods have been developed to determine the performance limits of various classes of hydraulic fluids. Lubrication capacity depends on various fundamental fluid parameters including viscosity and anti-wear properties. Critical elements of hydraulic pump and motor lubrication, which is characterized by sliding line-contact wear, will be discussed here. In vane pumps, the pressure loaded tips of the vanes are under Hertz-type load in contact with the surface of the cam ring, and rotate at a high speed creating a sliding line-contact. Due to this sliding line contact, the vane pump is the best-suited instrument for determination of the anti-wear performance of hydraulic fluids within acceptable time and at reasonable expense. Alternatively, hydraulic pump and motor testing may require greater energy, 150 kW or more over a period of more than 1000 hours significantly increasing the cost of testing. Furthermore, tests on smaller versions of one type of pump or motor do not necessarily correlate with larger units of similar design. Therefore, it would be desirable to develop a laboratory test that: utilizes a rig with standard wear parts, provides a selective method for identifying various forms of lubricant failure, and that permits tests correlation with a wide variety of hydraulic pumps and motors used in the industry today.

show abstract

Quantifying and Reducing the Effect of Contamination on Rolling Bearing Fatigue Life

Cited by 5 publications

References 8 publications

Bearing performance as a function of structure and heat treatment

Bearing performance as a function of structure and heat treatment

Wälzverschleiß und ‐ermüdung von Bauteilen und Maßnahmen zu ihrer Einschränkung

Pump Testing Strategies and Associated Tribological Considerations-Vane Pump Testing Methods ASTM D 2882, IP281, and DIN 51389

Contact Info

Product

Resources

About