**5. References**


[14] Mehta NP., and Singh A., "Stability analysis of Finite offset-halves pressure dam bearing", Trans ASME 1986; 108: 270-274.

**Section 2** 

**Rolling Element Bearings** 


**Rolling Element Bearings** 

24 Performance Evaluation of Bearings

LUB-22: 965-973.

2007; 2(1): 27-37.

1984; 97: 83-92.

133-143.

Peterburgo, 1883; 1: 71-140.

bearing", Trans ASME 1986; 108: 270-274.

bearing", Tribology International, 2007; 40(3): 453-458.

an offset half bearing", Wear 1987; 117(2): 197-210.

slider bearing", Tribol Onl 2006; 1: 19-24.

flexible rotors", Wear 1982; 77(2): 159-170.

[14] Mehta NP., and Singh A., "Stability analysis of Finite offset-halves pressure dam

[15] Mishra PC., Pandey RK., and Athre K., "Temperature profile of an elliptic bore journal

[16] Petrov NP., "Friction in machines and the effect of lubrication", Inzh. Zh. St.

[17] Pinkus O., and Lynn, Mass., "Analysis of elliptical bearings", Trans ASME 1956; 55-

[18] Rahmatabadi AD., Nekoeimehr M., and Rashidi R., "Micropolar lubricant effect on the performance of non-circular lobed bearings", Tribology International, 2010; 43: 404-413. [19] Read LJ., and Flack RD., "Temperature, pressure and film thickness measurements for

[20] Sehgal R., Swamy KNS., Athre K., and Biswas S., "A comparative study of the thermal behaviour of circular and non-circular journal bearings", Lub Sci 2000; 12(4): 329-344. [21] Sharma RK., and Pandey RK., "An investigation into the validity of the temperature profile approximations across the film thickness in THD analysis of infinitely wide

[22] Sharma RK., and Pandey RK., "Effects of the temperature profile approximations across the film thickness in Thermohydrodynamic analysis of Lubricating films", Ind J Tribol

[23] Singh A., and Gupta BK., "Stability limits of elliptical journal bearings supporting

[24] Singh A., and Gupta BK., "Stability analysis of orthogonally displaced bearings", Wear

[25] Singh DS., and Majumdar BC., "Computer-added design of hydrodynamic journal bearings considering thermal effects", Proc Inst Mech Eng, Part J: J Eng Tribol 2005; 219:

[26] Singh DV., Sinhasan R., and Prabhakaran Nair K., "Elastothermohydrodynamic effects

[27] Singh DV., Sinhasan R., and Kumar A., "A variational solution of two lobe bearings",

[28] Stachowiak GW., and Batchelor AW., "Engineering tribology", Elsevier Science

[29] Tayal SP., Sinhasan R., and Singh DV., "Finite element analysis of elliptical bearings

[30] Tower B., "First report on friction experiments", Proceedings of IMechE, 1883: 632-659. [31] Wilcock DF., "Orthogonally displaced bearings-I", ASLE Transactions, 1961; 4: 117-123.

in Elliptical bearings", Tribology International, 1989; 22(1): 43-49.

lubricated by a non-Newtonian fluid", Wear 1982; 80: 71-81.

Mechanism and Machine Theory, 1977; 12: 323-330.

Publishers B. V., Netherlands, 1993: 123-131.

[W1] www.roymech.co.uk/images3/lub\_2.gif [W2] www.reliabilitydirect.com/appnotes/jb.html

**Chapter 2** 

© 2012 Nachimowicz and Jałbrzykowski, licensee InTech. This is an open access chapter distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is

© 2012 Nachimowicz and Jałbrzykowski, licensee InTech. This is a paper distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

properly cited.

manufacturer and recipient of ball bearings.

different research units the results were still divergent.

**Performance Evaluation of Rolling Element** 

It is a well-known fact that the appropriate test method could be one of the crucial conditions of the correct evaluation of a simulated process. One might presume that in some cases in which the subject matter is well-researched, only widely recognized methods are applied. However, in less familiar cases, or where one needs to evaluate some unusual values, the question of the appropriate methodology becomes far more significant. There are a number of papers in literature dealing with the analysis of the same phenomenon or process where tests were based on completely different methodological approach. As a result most papers quoted different results which caused serious controversy. In addition, it appears that even when the research was conducted according to the same procedure, but at

As far as ball bearings are concerned there are numerous research methods to test these elements. For instance, using a four-ball pitting apparatus (T-03), a pitting ball-bearing tester (T-06), Amsler device or a ball-bearing testing platform. Most standards describe research methodology with the main focus on using particular testing devices, disregarding to a certain extent the very essence and purpose of the analysed object. The official standard for ball bearings in Poland is PN- 89/M-86410, however, it lacks a description of research methodology related to the external function of a ball bearing in "true-to-life" conditions. The description contains regulations concerning controlling the particular components of a ball bearing e.g. radial and axial run-out deviation, radial and axial clearance without paying any special attention to the working conditions of a ball bearing. Still, the standard allows applying other research methods which require prior acceptance of both the

In this context, the authors of the present section conducted tests on two-set ball bearings according to two different methods: their own methodology and the methods

**Bearings Based on Tribological Behaviour** 

Jerzy Nachimowicz and Marek Jałbrzykowski

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/51144

**1. Introduction** 
