Analysis on damage to rolling bearings at small turning angles

Okorn, Ivan (author), Nagode, Marko (author), Klemenc, Jernej (author)

A test rig was developed for testing air springs. It uses the energy returned by the spring during unloading. The springs are loaded by means of a lever oscillating around its rotation point at a small angle. During operation, it was determined that rotation point bearings are critical elements of the test rig. This paper shows and analyses the damage that occurs on bearing ring raceways. Contact pressure and stress under individual rolling elements were calculated by using the finite element method (FEM). Mechanisms of the formation and propagation of damage were identified. Optical and electronic microscopy was used for confirming the mechanisms of damage formation. The microstructure of damaged material was analysed. It was found that depressions on bearing ring raceways form due to material fatigue and fretting. The required bearing replacement frequency was determined with respect to load.

• Language: English
• Keywords: damage of rolling bearing, wear, partially-rotatory machines, false brinelling, fatigue, fretting
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2018
• Number of pages: Str. 209-215
• Numbering: Vol. 64, iss. 4
• PID: 20.500.12556/RUL-105268
• UDC: 620.1:621.822.6(045)
• ISSN on article: 0039-2480
• DOI: 10.5545/sv-jme.2017.5063
• COBISS.SI-ID: 16007707

Copyright

Podatek o licenci CC BY 4.0 je naveden na pristajalni strani članka – glej izvorni URL zgoraj. (Datum opombe: 21. 5. 2025)

• Publication date in RUL: 19.11.2018

Record is a part of a journal

• Title: Strojniški vestnik
• Shortened title: Stroj. vestn.
• Publisher: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: poškodba kotalnega ležaja, majhen kot zasuka ležaja, obraba, torna korozija, nepravi vtiski

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0182
• Name: Razvojna vrednotenja