THERMAL SCIENCE
International Scientific Journal
THE ANALYSIS OF IMPACT OF INTENSITY OF CONTACT LOAD AND ANGULAR SHAFT SPEED ON THE HEAT GENERATION WITHIN RADIAL BALL BEARING
ABSTRACT
This paper considers the factors that influence the heat generation within ball bearing. Various lubrication regimes are taken into consideration and a mathematical model for determination of the coefficient of heat generation is set up. Due to the complexity of mathematical tools, and in order to perform better and easier analysis of the considered phenomenon, the application that integrates the mathematical models of load distribution and heat generation was developed. The impact of the contact load and angular shaft speed on the level of heat generated in radial ball bearing was analyzed.
KEYWORDS
PAPER SUBMITTED: 2016-02-29
PAPER REVISED: 2016-05-23
PAPER ACCEPTED: 2016-05-23
PUBLISHED ONLINE: 2016-05-30
THERMAL SCIENCE YEAR
2016, VOLUME
20, ISSUE
Issue 5, PAGES [1765 - 1776]
- Harris, T., Kotzalas, M. Rolling Bearing Analysis - Advanced Concepts of Bearing Technology, Fifth edition, CRC Press Taylor & Francis Group, USA, 2007
- Harris, T., Kotzalas, M. Rolling Bearing Analysis - Essential Concepts of Bearing Technology, Fifth edition, CRC Press Taylor & Francis Group, USA, 2007
- Ristivojević, M., Mitrović, R. Raspodela opterećenja - zupčasti parovi i kotrljajni ležaji (Load distribution - gear pairs and rolling bearings), University of Belgrade - Faculty of Mechanical Engineering, 2002
- Mitrović, R., et al. Effects of Operation Temperature on Thermal Expansion and Main Parameters of Radial Ball Bearings, Thermal Science, 19 (2015), 5, pp. 1835-1844
- Mišković, Ž., et al. Analysis of Grease Contamination Influence on the Internal Radial Clearance of Ball Bearings by Thermographic Inspection, Thermal Science, 20 (2016), 1, pp. 255-265
- Tomović, R. Istraživanje uticaja konstrukcionih parametara kotrljajnih ležajeva na stanje njihove radne ispravnosti (Investigation of the impact of structural parameters of rolling bearing on the state of their labour safety), Ph.D. thesis, Faculty of Mechanical Engineering, Nis, Serbia, 2009
- Tomović, R. Calculation of the boundary values of rolling bearing deflection in relation to the number of active rolling elements, Mechanism and Machine Theory, 47 (2012), pp. 74-88
- Tomović, R. Investigation of the Effect of Rolling Bearing Construction on Internal Load Distribution and the Number of Active Rolling Elements, Advanced Materials Research, 633 (2013), pp. 103-116
- Tomović, R. Calculation of the necessary level of external radial load for inner ring support on q rolling elements in a radial bearing with internal radial clearance, International Journal of Mechanical Sciences, 60 (2012), pp. 23-33, ISSN 0020-7403
- Hamrock, B. Lubrication of Machine Elements, in: Mechanical Engineers' Handbook: Materials and Mechanical Design, Vol. 1, Third Edition, John Wiley & Sons, Inc., 2006, Ch. 32
- Leeuwen, H. The determination of the pressure-viscosity coefficient of a lubricant through an accurate film thickness formula and accurate film thickness measurements, Proc. ImechE, Part J: J. Engineering Tribology, 2009, Vol. 223, pp. 1143-1163
- Björling, M. Friction in Elasto Hydrodynamically Lubricated Contacts - The influence of speed and slide to roll ratio, Master thesis, Lulea University of Technology, Department of Engineering Science and Mathematics, Division of Machine Elements, Sweden, 2011
- Trachman, E., Cheng H. Thermal and non-Newtonian effects on traction in elastohydrodynamic contacts, Proc. Inst. Mech. Eng., 2nd Symposium on Elastohydrodynamic Lubrication, Leeds, 1972, pp. 142-148
- Parker, R.J. Comparison of Predicted and Experimental Thermal Performance of Angular-Contact Ball Bearings, NASA Technical Paper 227, 1984
- Grujičić, R. Uticaj broja aktivnih kotrljajnih tijela na generisanje toplote kod kugličnog ležaja sa radijalnim dodirom (The influence of the number of active rolling elements on heat generation within ball bearing with radial contact), Master thesis, University of Montenegro, Faculty of Mechanical Engineering, Podgorica, Montenegro, 2015
- ***, Khonsari, M.M., Booser, E.R. Proper Film Thickness key to Bearing Survival, Machine Design, machinedesign.com/archive/proper-film-thickness-key-bearing-survival
- Hamrock, B., Dowson, D. Isothermal elastohydrodynamics lubrication of point contacts - Part III - fully flooded results, Trans. ASME, J. Lubr. Technol., 1977, Vol. 99, pp. 264-276