ISSN 3041-1815. Physicochemical Mechanics of Materials. 2026.
Volume 62, Issue 4
Vibration signals of a rolling bearing at the early stages of defect development
Javorskyj I. M. 
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine. (https://ror.org/02jv3yx22)
Yuzefovych R. M.
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine. (https://ror.org/02jv3yx22)
Lviv Polytechnic National University, Lviv, Ukraine. https://ror.org/0542q3127
Komarnytskyi B. R.
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine. (https://ror.org/02jv3yx22)
Lychak O. V.
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine. (https://ror.org/02jv3yx22)
Khmil R. I.
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine. (https://ror.org/02jv3yx22)
Keywords
periodically non-stationary random process, angular shaft misalignment, bearing, vibration, condition indicator.
Cite as
Javorskyj I. M., Yuzefovych R. M., Komarnytskyi B. R., Lychak O. V., and Khmil R. I. Vibration signals of a rolling bearing at the early stages of defect developmen. Physicochemical Mechanics of Materials. 2026. 62(4), 71-80.
Abstract
Vibrations due to shaft angular misalignment are among the most common defects which cause increased wear in bearings. The results of processing vibration signals obtained on the support of a bearing assembly with artificially created misalignment during laboratory tests of the BBC-R 6205 2RS/P6 bearing are presented. Using the methods of periodically non-stationary random processes time changes of the vibration signals of a rolling bearing in the nominal mode and under the condition of an angular misalignment of 0.5° are investigated. The possibility of detecting the fact of the initiation and development of a bearing defect on the outer ring is shown.