Reliable high speed spindles by optimum bearings preload

• Autorzy: Hagiu G.
• Języki publikacji: EN

Abstrakty

EN

To design a high speed spindle with enhanced qualitative performances - high accuracy and service life together with a stable dynamic and thermal regime - two main conditions have to be secured: an optimum internal load distribution on the bearings and an efficient and safe lubrication regime. The preload force, by the significant changes produced on the bearings functioning parameters, i.e., kinematics, both load internal distribution and amount, appears as one of the most important factors affecting the main reliability parameters of high speed spindles. A theoretical research assisted by an experimental validation on grinding machine spindles was developed to determine the bearings preload influence on the spindles main reliability parameters, i.e., service life, dynamic and thermal stability. From the analysis of the results obtained, the optimum bearings preloads able to secure, in given operating conditions, the imposed reliability parameters for the high speed spindles were determined.

Słowa kluczowe

EN

bearing; high speed spindle; reliability; optimum preload bearings

PL

wrzeciono szybkoobrotowe; łożysko; niezawodność

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2003
• Tom: Vol. 8, no 1
• Strony: 57--70
• Opis fizyczny: Bibliogr. 25 poz., rys., wykr.

Twórcy

autor

Hagiu G.

• Gh. Asachi" Technical University of Iasi Department of Machine Design 63 D. Mangeron Blvd., 6000 Iasi, ROMANIA

Bibliografia

• [1] Brandlein J. (1985): Eigenschaften von Walzlagelarten Werkzeugmaschinen - Spindeln. - Walzlagertechnik, No.l, pp.44-45.
• [2] Brandlein J. (1987): Properties of rolling bearing supported machine tool spindles. - Pub. FAG WL 02 113 EA, pp. 15-28.
• [3] Eschmann P., Hasbargen L. and Weigang K. (1985): Bali and Roller Bearings. - New York: Wiley.
• [4] Hagiu G.D. and Gafitanu M.D. (1994): Preload - service life correlation for bali bearings on machine tools main spindles. - Wear, No. 172, pp.79-83.
• [5] Hagiu G.D. and Gafitanu G.D. (1995): Preload optimisation: an efficient design solution for grinding machine main spindles. - ASTM STP No. 1247, Bayer, American Society for Testing Materials, pp.74-84.
• [6] Hagiu G.D. and Gafitanu M.D. (1996): Preload optimisation: an efficient solution improving the dynamic stability of high speed ball bearings assemblies. - Proc. of the 10th International Colloq. Tribology, 9th-11th January, Esslingen, Germany, pp. 1607-1617.
• [7] Hagiu G.D. and Gafitanu M.D. (1997): Dynamic characteristics of high speed angular contact ball bearings. - Wear, No.211, pp.22-29.
• [8] Hagiu G.D., Farcas F. and Balan M. (2000a): Best lubrication for high speed bali bearings assemblies. - Proc. of the 7th International Conference on Tribology, 4th-5th September, Budapest, Hungary, pp.187-190.
• [9] Hagiu G.D., Gafitanu M.D., Farcas F. and Tiron M.C. (2000b): Optimum lubricant: best compromise dynamie stability functioning temperature for high speed ball bearings. - Proc. of the 12th International Colloquium Tribology, 13th- 15th January, Esslingen, Germany, pp. 1237-1244.
• [10] Hagiu G.D., Gafitanu M.D. and Racocea C. (2002): Reliable high speed rolling bearings tribocontacts. - Proc. of the 13th International Colloquium Tribology, 15th-17th January, Esslingen, Germania, pp. 1999-2005.
• [11] Harris T.A. (1991): Rolling Bearing Analysis. - 3rd Ed., New York: Wiley.
• [12] Harris T.A. and McCool J.I. (1996): On the accuracy of rolling bearing fatigue life prediction. - Trans. ASME, Journal of Lubrication Technology, No. 118, pp.297-310.
• [13] Hoeprich M.R. (1996): Rolling-element bearing internal temperatures. - Tribology Transactions, vol.39, No.4, pp.855-858.
• [14] Horning W. (1987): Design of machine tool bearings assemblies. - Pub. FAG WL 02 113 EA, pp.36-47.
• [15] Horning A. and Voll A. (1988): High-speed machining obtainable with rolling bearing spindle units. - Bali and Roller Bearing Engineering, No.l, pp.10-17.
• [16] Lorosch H. (1987): Reliable lubrication of machine tools bearings. - Pub. FAG WL 02 113 EA, pp.28-35.
• [17] Lundberg G. and Palmgren A. (1952): Dynamie capacity of roller bearings. - Acta Polytechnica Scandinavica, Mechanical Engineering Series, vol.2, No.4, pp.1-96.
• [18] Reshetov D.N. and Portman T. (1989): Accuracy of Machine Tools. - New York: ASME Press Translation.
• [19] Sayles R. and Mac Pherson P. (1982): Influence of wear debris on rolling contact fatigue. - ASTM STP No.771 (J J.C. Hoo, Ed.), American Society for Testing Materials, pp.255-274.
• [20] Tsutsumi M., Chung Y., Murakami Y. and Ito Y. (1985): Dynamic characteristics of spindle-bearing system in machine tools. 2nd report: mathematical expressions of spindle-bearing system and its applications. - Bulletin of JSME, vol.28, No.244, pp.2460-2466.
• [21] Walford T.L.H. and Stone B.J. (1983): The sources of damping in rolling element bearings under oscillating conditions. - Proc. Inst. Mech. Eng., vol.197C, pp.225-232.
• [22] Weck M. and Koch A. (1993): Spindle-bearing system for high-speed applications in machine tools. - Annals of the CIRP, vol.42, No.l, pp.445-448.
• [23] Weck M., Hanrath G. and Tullmann U. (1997): Erhohung der Drehzahlgrenze und Lebensdauer von Spindellagern. - Antriebstechnik, vol.36, No.9, pp.73-77.
• [24] FAG Wiilzlager (1999): Katalog WL 41 520/3 DB, FAG OEM und handle AG, Schweinfurt.
• [25] SKF Hauptkatalog (1994): 4000/1V T, Paderborn: Media Print Inf.