An Experimental and Numerical Evaluation of Seal Strictness on Ball Bearing Performance

Year 2021, Volume: 8 Issue: 3, 221 - 231, 29.09.2021

Zafer Özdemir Selim Türkbas Kağan Sarıgöz

https://doi.org/10.17350/HJSE19030000232

Cited By: 1

Abstract

Rubber-based ball bearing seals are widely used in the bearing industry. These seals affect the performance of the ball bearings and endurance life as well. Effect of rolling bearing seal strictness value on bearing performance was investigated experimentally and numerically in this study. Four different seal strictness rolling bearing samples were manufactured for the tests. The bearing seal strictness which is used in tests are given respectively; 200 μm, 160 μm, 105 μm, 45 μm and contactless. First; friction torque test was performed without loading and bearings were rotated at 3000 rpm for one hour. Temperature values and friction generation in bearings against rotation were measured throughout the tests. Second; temperature tests have been carried out; roll bearings were rotated at 6000 rpm for one hour and 2000 N radial load was applied to samples. 5 samples for each test have been used. The contact reaction force between the region of inner ring and rubber seal inner lip was modeled by means of the finite element method and designed in ANSYS Workbench. ANSYS results and friction moment test results have been evaluated and compared. It is observed that as the strictness increases, the friction force and temperature increase, but this affects the life cycle of ball bearing negatively. It has been seen that the numeric results are consistent with the test results.

Keywords

ball bearing, rubber seal, ansys

References

• 1. Shigley’s Mechanical Engineering Design, Eighth Edition Budynas−Nisbett. (2011).
• 2. İnternet: ORS Rulman. Ortadoğu Rulman Sanayi ve Ticaret A.Ş..URL:https:// ors.com.tr/tr/page/42/rulman-nedir last update, 2017-12-19.
• 3. Sada, T. "Loss reduction of rolling bearings for the automobile", Journal of Japanese Society of Tribologists. (2017).
• 4. Gorycki, L. "Analysis of the Impact of the Cage Type on the Frictional Moment Rolling Bearings", David Publishing Journal of Mechanics Engineering and Automation 5, (450-453) (2015).
• 5. B.Choe, J.Lee, D.Jeon and Y.Lee " Experimental study on dynamic behavior of ball bearing cage in cryogenic environments, Part I: Effects of cage guidance and pocket clearances", Mechanical Systems and Signal Processing, Elsevier, (2018).
• 6. Y.Cui, S.Deng, R.Niu, G.Chen "Vibration effect analysis of ball dynamic unbalance on the cage of high-speed cylindrical ball bearing", Journal of Sound and Vibration, Elsevier, (2018).
• 7. Z.Yang, T.Yu, Y.Zhang and Z.Sun "Influence of Cage Clearance on the Heating Characteristics of High-Speed Ball Bearings", Tribology International, (2016).
• 8. Takimoto, M., Ishikawa, T., and Harada, K. "Technical development of automotive wheel bearing seals (Muddy-water resistant seal, low-temperature environment seal and super low-torque seal)", JTEK Engineering Journal, 64-68, (2011).
• 9. White J. R., De, S. K. "Rubber Technologist’s Handbook", The United Kingdom. Rapra Technology Limited, 50, 77-78. (2001).
• 10. SKF Group, Rolling Bearings Catalogue, (2013).
• 11. Harris, T. A., Kotzalas M. N., "Essential Concepts of Bearing Technology", CRC Press, Chapter 10 (5-6), (2006).
• 12. Brown R. "Physical Testing of Rubber". Springer, (2006).
• 13. Gent, A. N. "Engineering With Rubber How to Design Rubber Components (Third Edition)", Munich: Hanser Publishers (2012).
• 14. Simpson, R. B. "Rubber Basics", United Kingdom: Rapra Technology Limited ,(2002).
• 15. ISO-281:2007. "Rolling Bearings - Dynamic Load Ratings and Rating Life", International Standard Organization, 11-12, 18, 25-32, 44. (2010).
• 16. ISO-16281:2008. "Rolling bearings-Methods for calculating the modified reference rating life for universally loaded bearing" (2008).
• 17. MESYS Software MSC Software. "Nonlinear finite element analysis of elastomers". MSC Software. (2010).
• 18. Ghaemi, H., Behdinan, K., Spence, A. (2006). On the development of compressible pseudo-strain energy density for elastomers application to finite element. Journal of Materials Processing Technology, 318.
• 19. Carlescu, V., Prisacaru, G., Olaru, N. D. (2014). FEM simulation on uniaxial tension of hyperelastic elastomers. Applied Mechanics and Materials, 659 (2014), 57-62.
• 20. Miller, K. (2014). Experiments and fitting of advanced polymer models in ANSYS. Axel Products 2014 Regional Conference, 28.