In this paper, investigation on the friction torque of a double row roller slewing bearing which is operated in the azimuth axis of a gun turret is performed. For this purpose, a friction measurement test setup is designed and friction torque measurements are conducted. Tests are performed at low speeds and various loading conditions. Friction sources are decoupled and examined separately in order to fully understand effect of each component on friction torque of the slewing bearing. Therefore, friction caused by rolling motion and friction caused by two different types of lip seals are investigated. In addition, friction identification analyses are performed. In the analysis, load distribution of the bearing is calculated by finite element analysis software and rolling motion is simulated with a multibody-dynamic analysis program. In the end, analyses results are compared and verified with the test results.
Experimental Determination and Analytical Model of Friction Torque of a Double Row Roller Slewing Bearing
Department of Mechanical Engineering,
Middle East Technical University,
Ankara 06800, Turkey
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received January 13, 2016; final manuscript received March 29, 2016; published online August 11, 2016. Assoc. Editor: George K. Nikas.
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Dindar, A., Akkök, M., and Çalışkan, M. (August 11, 2016). "Experimental Determination and Analytical Model of Friction Torque of a Double Row Roller Slewing Bearing." ASME. J. Tribol. March 2017; 139(2): 021503. https://doi.org/10.1115/1.4033364
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