Journal
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
Volume 143, Issue 9, Pages -Publisher
ASME
DOI: 10.1115/1.4049258
Keywords
spindle system; angular contact ball bearing; wear; angular misalignment; rolling element bearings
Categories
Funding
- Open Fund of Key Laboratory of Vibration and Control of Aero-Propulsion System Ministry of Education, Northeastern University [VCAME201802]
- National Natural Science Foundation of China [51675353, 51975388]
- Liaoning Provincial Natural Science Foundation of China [20170540739]
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Research on the wear of angular contact ball bearings in spindle systems found that the uncertainty of initial angular misalignment significantly affects wear depth dispersion. The dispersion degree is influenced by spindle speed, angular misalignment cases, and bearing mounting position.
The effects of the uncertainty of angular misalignment on the wear of angular contact ball bearings in the spindle system are investigated. The wear model of bearing raceways is derived based on the Archard model. The angular misalignment caused by mounting error is assumed to comply with normal distribution, Monte Carlo method is used to extract the angular misalignment sample. Based on the spindle system model, the spinning speed, pitch angle, and contact force of ball elements in each angular contact ball bearing are calculated. The wear depth of bearing raceways is analyzed. The results show that the uncertainty of the initial angular misalignment leads to significant dispersion of wear depth of ball bearings, but the dispersion degree is related to spindle speed, angular misalignment cases, and bearing mounting position. Increasing the spindle speed increases the wear depth but decreases the wear depth dispersion.
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