Rongjun NIU, Zhengjie HAN, Yufei WANG, et al. Wear life analysis of angular contact ball bearing in high temperature environment[J]. Journal of Aerospace Power, 2022, 37(8): 1780-1792.
DOI:
Rongjun NIU, Zhengjie HAN, Yufei WANG, et al. Wear life analysis of angular contact ball bearing in high temperature environment[J]. Journal of Aerospace Power, 2022, 37(8): 1780-1792.DOI: 10.13224/j.cnki.jasp.20210466.
Wear life analysis of angular contact ball bearing in high temperature environment
In view of the change of bearing material properties and lubrication state under high temperature environment
the bearing wear was aggravated and the accuracy was lost prematurely.Firstly
the friction and wear tests of bearing materials under high temperature environment were carried out to obtain the wear coefficient of the materials.On this basis
the wear model of high temperature angular contact ball bearing was established by considering the effects of temperature
lubrication and bearing material properties on bearing wear performance.Through numerical solution
the effects of load parameters and structural parameters on the wear performance of the bearing were discussed
and the wear life of the bearing was evaluated.The results showed that: for the bearing material non magnetic alloy GH05
the wear coefficient was 2.5×10
-7
mm
2
/N at 300 ℃.With the increase of load
speed and temperature
the wear rate of inner and outer rings of bearing increased constantly.The wear rate of the inner ring was greater than that of the outer ring.The wear characteristics of the inner ring determine the wear life of the bearing; load and speed are the main factors of determining the bearing wear life.In addition
the main structural parameters of the bearing had an important impact on the wear life.The bearing wear life can be improved through structural optimization.
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