Abstract
In this paper, the concept of an internally spring preloaded four contact-points bearing for the use in high precision and high speed applications is investigated. It is designed as a compact self-contained fixed bearing unit that is free of play, easy to mount and resistant against temperature differences between the inner and outer ring. The concept of the bearing, its functionality and properties are introduced and the results of an experimental analysis of a first prototype are presented. The prototype bearing, which is based on a hybrid 7014 spindle bearing with an additional spring preload unit, was manufactured by hard turning. Its properties are compared to those of similar two and three contact-points spindle bearings. Typical requirements in modern high precision applications, e.g. machine tool spindle units, and limiting characteristics of bearings, such as displacement, stiffness, friction torque and operating temperature, are considered. Finally, the potential of the new bearing concept is discussed.
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References
Abele E, Altintas Y, Brecher C (2010) Machine tool spindle units. CIRP Ann Manuf Technol 59:781–802. doi:10.1016/j.cirp.2010.05.002
Cao Y, Altintas Y (2004) A general method for the modeling of spindle-bearing systems. J Mech Des 126:1089–1104. doi:10.1115/1.1802311
Jedrzejewski J, Kwasny W (2010) Modelling of angular contact ball bearings and axial displacement for high-speed spindles. CIRP Ann Manuf Technol 59:377–382. doi:10.1016/j.cirp.2010.03.026
Brecher C, Spachtholz G, Paepenmüller F (2007) Developments for high performance machine tool spindles. CIRP Ann Manuf Technol 56:395–399. doi:10.1016/j.cirp.2007.05.092
Weck M, Brecher C (2006) Werkzeugmaschinen 2 – konstruktion und berechnung. Springer, Berlin
Schaeffler KG (2008) Rolling Bearings. Company publication, Schweinfurt, Germany
Schaeffler Technologies (2010) High Precision Bearings. Company publication, Schweinfurt, Germany
Weck M, Spachtholz G (2003) 3- and 4-contact point spindle bearings—a new approach for high speed spindle systems. CIRP Ann Manuf Technol 52:311–316. doi:10.1016/S0007-8506(07)60591-5
Spachtholz G (2008) Erweiterung des leistungsbereichs von spindellagern. Dissertation, RWTH Aachen
Leblanc A, Nelias D (2007) Ball motion and sliding friction in a four-contact-point ball bearing. J Tribol 129:801–808. doi:10.1115/1.2768079
Leblanc A, Nelias D (2008) Analysis of ball bearings with 2, 3 or 4 contact points. Tribol Trans 51:372–380. doi:10.1080/10402000801888887
Townsend DP, Allen CW, Zaretsky EV (1973) Friction losses in a lubricated thrust-loaded cageless angular-contact bearing. Nasa Technical Note D7356
Harris TA, Kotzalas MN (2007) Advanced concepts of bearing technology. CRC Press, Boca Raton
Acknowledgments
This research was supported by the German Research Foundation (DFG) within the research unit BRE 2905/14-2 “Gestaltungsvarianten Spindellager”.
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Brecher, C., Rossaint, J. & Falker, J. Evaluation of an internally spring preloaded four contact-points bearing for spindle units. Prod. Eng. Res. Devel. 7, 195–201 (2013). https://doi.org/10.1007/s11740-013-0443-9
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DOI: https://doi.org/10.1007/s11740-013-0443-9