The Condition Monitoring of Large Slewing Bearing Based on Oil Analysis Method

Xiu Qin Bai; Han Liang Xiao; Lu Zhang

doi:10.4028/www.scientific.net/KEM.474-476.716

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 474-476The Condition Monitoring of Large Slewing Bearing...

The Condition Monitoring of Large Slewing Bearing Based on Oil Analysis Method

Abstract:

Large slewing bearing is a special kind of rolling bearing with heavy load and very low rotation speed. It is important to carry out faults monitoring on this kind of rolling bearing. However, it is difficult to carry out vibration monitoring on such large slewing bearing. The running conditions of slewing bearings of ship loader and stacking crane in Qinghuangdao Port were analyzed using ferrography and spectrometric analysis technology. Monitoring results showed that the slewing bearing of SL-Q1 ship loader was under abnormal wear condition. Further inspection indicated that the rolling elements of this bearing underwent severe wear and broke down. This suggested that it was feasible to evaluating the wear conditions of this type of large low-speed heavy-load rolling bearing using ferrography and spectrometric analysis.