The influence of the radial internal clearance on the dynamic response of self-aligning ball bearings

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet


In this work, we present a quantitative and qualitative analysis of the dynamic response of ball bearings dependent on radial internal clearance. We measured the vibrations of a rotating system based on self-aligning ball bearings for different clearances and rotating speeds. The analysis of vibration spectra was conducted considering a set of different recurrence indicators in order to describe the response of the bearing to the optimal clearance. It comes out that indicators have different sensitivity to the changes of the internal clearance. Few quantificators, i.e. entropy, trapping time, and recurrence period density entropy demonstrate the highest sensitivity to the change of radial clearance. The proposed quantificators are useful for real-time monitoring of operating clearance.

ZeitschriftMechanical Systems and Signal Processing
PublikationsstatusErschienen - 15.05.2022

Bibliographische Notiz

Funding Information:
The project/research was financed in the framework of the project Lublin University of Technology – Regional Excellence Initiative, funded by the Polish Ministry of Science and Higher Education (contract no. 030/RID/2018/19). The authors would like also to thank you the company NTN-SNR EUROPE for the delivery of bearings and all necessary equipment used in the conducted experiment in the Institute of Process and Product Innovation at the Leuphana University of Lüneburg.

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