Investigation of rolling bearing lubrication condition
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Silesian University of Technology
Submission date: 2021-05-04
Final revision date: 2021-10-18
Acceptance date: 2021-11-22
Online publication date: 2021-11-23
Publication date: 2021-11-23
Corresponding author
Andrzej Jałowiecki   

Silesian University of Technology
Diagnostyka 2021;22(4):51–58
The research aimed to assess the lubrication condition of rolling bearings dismounted from previously operated passenger car alternators. The tests measured the vibrations and evaluated the technical condition of the bearings based on selected estimators of the vibration acceleration signal subjected to earlier band-pass filtration in the high-frequency range of 8-10kHz. Next, the bearings have been disassembled, allowing inspection of the lubricant condition for each measured bearings and the visual assessment of individual components. Based on the test results, it was observed that the mean value and standard deviation of considered features of vibration acceleration signals in the 8-10kHz band might be helpful in the classification of the lubrication condition.
Described research is supported partly by scientific funds for statutory research in the Department of Fundamentals of Machinery Design of the Silesian University of Technology.
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