Abstract
The stiffness of the rolling bearing has a great influence on the dynamic characteristics of motorized spindle. In order to obtain the stiffness of angular contact ball bearing under oil-jet lubrication, the theoretical calculation model and experiment method are proposed in this paper. Based on hertz contact theory and elastohydrodynamic lubrication theory, the quasi-static analysis model of angular contact ball bearing is established. The factors including ball centrifugal force, gyro moment, preload and oil film thickness are taken into consideration and theoretically analyzed. The test platform on comprehensive stiffness is designed and the stiffness is experimentally verified under different factors. The results show that the comprehensive stiffness increases with the increase of axial, radial load and preload but decreases with the increase of rotational speed. Therefore, the adjustment of the working condition of angular ball bearing can make it work in a better mechanical state and thus improve the bearing life.
This project is supported by National Natural Science Foundation of China (Grant No. 51775277).
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Sun, P., Chen, W., Su, C., Shen, Y. (2020). Calculation and Experimental Study on Comprehensive Stiffness of Angular Contact Ball Bearings. In: Tan, J. (eds) Advances in Mechanical Design. ICMD 2019. Mechanisms and Machine Science, vol 77. Springer, Singapore. https://doi.org/10.1007/978-981-32-9941-2_48
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DOI: https://doi.org/10.1007/978-981-32-9941-2_48
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