Loading of a radial rolling bearing with bombed rollers

Аuthors

Nakhatakyan F. G.

Mechanical Engineering Research Institute of the Russian Academy of Sciences, 4, M. Khariton'evskii per., Moscow, 101990, Russia

Abstract

The presented article has studied the problem of radial bearing rollers barreling in detail. It is indicated that due to the edge effect, occurring in roller bearings in the ring-roller contact, concentrations of contact stresses originate at the ends of the rollers, the value of the latter herewith may be several times higher than the Hertz ones, in which concentrations of stresses are not being accounted for. Owing to this phenomenon, the load capacity of the bearing is drastically reduced. It is noted that one of the effective methods to countereact this phenomenon in roller bearings is the rollers barreling, and in this case, the problem consists in determining the “barrel” radius.

To solve the problem analytically, the author employs his previously proposed method for the contact parameters determining during interaction of the two circular cylinders under conditions of a skew angle. For this method application, the end sections of the roller are replaced with discs of different diameters. Practically speaking we get a stepped roller. However, as the thickness of the roller tends to zero (or their number to infinity), the surface of the roller is smoothed.

Further, a system of equations, namely the compatibility of deformations, displacements and gaps, on the one hand, and equilibrium, on the other is being compiled.

The obtained system of equations was solved in this work analytically. The optimal radius of the roller “barrel” has been obtained, which ensures the absence of the contact stresses concentration at the ends of the roller, which indicates an increase in the load capacity of the roller bearing.

The results may be employed in the design of rolling-contact bearing with increased load capacity.

Keywords:

roller bearing; barrel-shaped (combined) roller; contact interaction; roller contact with the bearing ring

References

1. Ivannikov V.V., Degtyarev S.A., Popov V.V., Sorokin F.D., Leont'ev M.K. Izvestiya vysshikh uchebnykh zavedenii. Aviatsionnaya tekhnika, 2018, no. 4, pp. 58-68

2. Klebanov Ya.M., Petrov V.R., Adeyanov I.E. Inzhenernyi zhurnal: nauka i innovatsii, 2019, no. 10 (94), pp. 1–18.

3. Klebanov Ya.M., Petrov V.R., Adeyanov I.E. Fundamental'nye osnovy mekhaniki, 2019, no. 4, pp. 93-100.

4. Melent'ev V.A. Malootkhodnaya tekhnologiya izgotovleniya kolets rolikovykh podshipnikov na osnove primeneniya kombinirovannogo dornovaniya (Low-waste technology for the manufacture of roller bearing rings based on the use of combined burnishing), Doctor's thesis, Saratov, Saratovskii gosudarstvennyi tekhnicheskii universitet. 2009.

5. Sorokin F.D., Khao Ch. II Vserossiiskaya nauchno-tekhnicheskaya konferentsiya, posvyashchennaya yubileyam osnovatelei kafedry "Prikladnaya mekhanika" MGTU im. N.E. Baumana V sbornike: Mekhanika i matematicheskoe modelirovanie v tekhnike, Moscow, MGTU imeni N.E. Baumana, 2017, pp. 228-232.

6. Orlov A.V. Problemy mashinostroeniya i nadezhnosti mashin, 2007, no. 5, pp. 71-79.

7. Sorokin F.D., Chzhan Kh., Popov V.V., Ivannikov V.V. Trudy MAI, 2018, no. 103. URL: https://trudymai.ru/eng/published.php?ID=100582

8. Sorokin F.D., Chzhan Kh., Popov V.V., Ivannikov V.V. Trudy MAI, 2019, no 104. URL: https://trudymai.ru/eng/published.php?ID=102114

9. Khaustov A.I., Shashkin I.N., Mal'gichev V.A., Nevzorov A.M. Trudy MAI, 2012, no. 50. URL: https://trudymai.ru/eng/published.php?ID=28697

10. Zubko A.I., Dontsov S.N. Trudy MAI, 2014, no. 74. URL: https://trudymai.ru/published.php?ID=49296

11. Sadeghi F., et al. A Review of Rolling Contact Fatigue // Journal of Tribology, 2009, vol. 131, no. 4. DOI: 10.1115/1.3209132

12. Advanced Analysis Package for High Speed Multibearing Shaft Systems: COBRA–AHS. Final report, NASA Contract NAS3–00018, 2002.

13. Oswald F.B., Zaretsky E.V., Poplawski J.V. Interference Fit Life Factors for Ball Bearings, Tribology Transactions, 2011, vol. 54, no. 1, pp. 1–20. DOI: 10.1080/10402004.2010.512428

14. Orlov A.V. Problemy mashinostroeniya i nadezhnosti mashin, 2008, no. 5, pp. 73-79.

15. Elmidany T., et al. Optimal Interference in Radial Cylindrical Roller Bearings, Journal of Engineering and Applied Science, 2007, vol. 54, no. 2, pp. 189–204.

16. Harris T.A., Kotzalas M.N. Rolling Bearing Analysis. Vol. 1, CRC Press, Boca Raton, FL, 2007. 481 p.

17. Orlov A.V. Problemy mashinostroeniya i nadezhnosti mashin, 2006, no. 6, pp. 31-36.

18. Popova D.D., Samoilenko N.A., Semenov S.V., Shisterov V.A. Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Aerokosmicheskaya tekhnika, 2020, no. 60, pp. 96-104.

19. Nakhatakyan F.G. Vestnik mashinostroeniya, 2011, no. 10, pp. 45-48.

20. Nakhatakyan F.G. Problemy mashinostroeniya i avtomatizatsii, 2012, no. 4, pp. 91-94

Download