Analysis of grease contamination influence on the internal radial clearance of ball bearings by thermographic inspection
Апстракт
One of the most important factors influencing ball bearings service life is its internal radial clearance. However, this parameter is also very complex because it depends on applied radial load and ball bearings dimensions, surface finish, and manufacturing materials. Thermal condition of ball bearings also significantly affects internal radial clearance. Despite many researches performed in order to find out relevant facts about different aspects of ball bearings thermal behaviour, only few of them are dealing with the real working conditions, where high concentration of solid contaminant particles is present. That is why the main goal of research presented in this paper was to establish statistically significant correlation between ball bearings temperatures, their working time, and concentration of contaminant particles in their grease. Because of especially difficult working conditions, the typical conveyor idlers bearings were selected as representative test samples and appropriat...e solid particles from open pit coal mines were used as artificial contaminants. Applied experimental methodology included thermographic inspection, as well as usage of custom designed test rig for ball bearings service life testing. Finally, by obtained experimental data processing in advanced software, statistically significant mathematical correlation between mentioned bearings characteristics was determined and applied in commonly used internal radial clearance equation. That is the most important contribution of performed research the new equation and methodology for ball bearings internal clearance determination which could be used for eventual improvement of existing bearings service life equations.
Кључне речи:
thermographic inspection / radial ball bearings / internal radial clearance / contaminationИзвор:
Thermal Science, 2016, 20, 1, 255-265Издавач:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
Финансирање / пројекти:
- Развој методологија за повећање радне способности, поузданости и енергетске ефикасности машинских система у енергетици (RS-MESTD-Technological Development (TD or TR)-35029)
- Истраживање метода и приступа повећању радног века и поузданости машинских система (RS-MESTD-MPN2006-2010-14033)
DOI: 10.2298/TSCI150319083M
ISSN: 0354-9836
WoS: 000373314400024
Scopus: 2-s2.0-84963511138
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Mišković, Žarko AU - Mitrović, Radivoje AU - Stamenić, Zoran PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2339 AB - One of the most important factors influencing ball bearings service life is its internal radial clearance. However, this parameter is also very complex because it depends on applied radial load and ball bearings dimensions, surface finish, and manufacturing materials. Thermal condition of ball bearings also significantly affects internal radial clearance. Despite many researches performed in order to find out relevant facts about different aspects of ball bearings thermal behaviour, only few of them are dealing with the real working conditions, where high concentration of solid contaminant particles is present. That is why the main goal of research presented in this paper was to establish statistically significant correlation between ball bearings temperatures, their working time, and concentration of contaminant particles in their grease. Because of especially difficult working conditions, the typical conveyor idlers bearings were selected as representative test samples and appropriate solid particles from open pit coal mines were used as artificial contaminants. Applied experimental methodology included thermographic inspection, as well as usage of custom designed test rig for ball bearings service life testing. Finally, by obtained experimental data processing in advanced software, statistically significant mathematical correlation between mentioned bearings characteristics was determined and applied in commonly used internal radial clearance equation. That is the most important contribution of performed research the new equation and methodology for ball bearings internal clearance determination which could be used for eventual improvement of existing bearings service life equations. PB - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd T2 - Thermal Science T1 - Analysis of grease contamination influence on the internal radial clearance of ball bearings by thermographic inspection EP - 265 IS - 1 SP - 255 VL - 20 DO - 10.2298/TSCI150319083M ER -
@article{ author = "Mišković, Žarko and Mitrović, Radivoje and Stamenić, Zoran", year = "2016", abstract = "One of the most important factors influencing ball bearings service life is its internal radial clearance. However, this parameter is also very complex because it depends on applied radial load and ball bearings dimensions, surface finish, and manufacturing materials. Thermal condition of ball bearings also significantly affects internal radial clearance. Despite many researches performed in order to find out relevant facts about different aspects of ball bearings thermal behaviour, only few of them are dealing with the real working conditions, where high concentration of solid contaminant particles is present. That is why the main goal of research presented in this paper was to establish statistically significant correlation between ball bearings temperatures, their working time, and concentration of contaminant particles in their grease. Because of especially difficult working conditions, the typical conveyor idlers bearings were selected as representative test samples and appropriate solid particles from open pit coal mines were used as artificial contaminants. Applied experimental methodology included thermographic inspection, as well as usage of custom designed test rig for ball bearings service life testing. Finally, by obtained experimental data processing in advanced software, statistically significant mathematical correlation between mentioned bearings characteristics was determined and applied in commonly used internal radial clearance equation. That is the most important contribution of performed research the new equation and methodology for ball bearings internal clearance determination which could be used for eventual improvement of existing bearings service life equations.", publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd", journal = "Thermal Science", title = "Analysis of grease contamination influence on the internal radial clearance of ball bearings by thermographic inspection", pages = "265-255", number = "1", volume = "20", doi = "10.2298/TSCI150319083M" }
Mišković, Ž., Mitrović, R.,& Stamenić, Z.. (2016). Analysis of grease contamination influence on the internal radial clearance of ball bearings by thermographic inspection. in Thermal Science Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 20(1), 255-265. https://doi.org/10.2298/TSCI150319083M
Mišković Ž, Mitrović R, Stamenić Z. Analysis of grease contamination influence on the internal radial clearance of ball bearings by thermographic inspection. in Thermal Science. 2016;20(1):255-265. doi:10.2298/TSCI150319083M .
Mišković, Žarko, Mitrović, Radivoje, Stamenić, Zoran, "Analysis of grease contamination influence on the internal radial clearance of ball bearings by thermographic inspection" in Thermal Science, 20, no. 1 (2016):255-265, https://doi.org/10.2298/TSCI150319083M . .