CONTACT STRESS AND DEFORMATIONS IN ECCENTRICALLY LOADED THRUST BALL BEARING
Abstract
Contact stress and deformations in the thrust ball bearing with a contact angle of 90 ° are
onsidered in this paper. Ideally, an external axial load of this kind of bearings should be centric, but in reality, this force may act eccentrically. As a result, the load distribution between balls is inequal. The most unfavourable case is when the axial force intersects the radius vector of one of the balls. The load, contact stress and contact deformation of this ball are greater than the load of all rest of the balls and greater in the case of equal load distribution. It limits the load-carrying capacity of a real bearing, compared to the theoretical static load rating. Analyzes have shown that considered thrust ball bearings do not lose operational ability at low speeds, even if there is some load eccentricity when an external axial load is not more than 30- 40% of static bearing capacity. Otherwise, additional bearing capacity analyzes are required.
Keywords:
thrust ball bearing / load distribution / contact deformations / contact stressSource:
The 10th International Scientific Conference IRMES 2022 “Machine design in the context of Industry 4.0 – Intelligent products”, 26 May 2022, Belgrade, Serbia, 2022, 156-161Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-MESTD-inst-2020-200135)
Collections
Institution/Community
Mašinski fakultetTY - CONF AU - Ljubojević, Pavle AU - Mitrović, Radivoje AU - Lazović, Tatjana PY - 2022 UR - https://machinery.mas.bg.ac.rs/handle/123456789/6803 AB - Contact stress and deformations in the thrust ball bearing with a contact angle of 90 ° are onsidered in this paper. Ideally, an external axial load of this kind of bearings should be centric, but in reality, this force may act eccentrically. As a result, the load distribution between balls is inequal. The most unfavourable case is when the axial force intersects the radius vector of one of the balls. The load, contact stress and contact deformation of this ball are greater than the load of all rest of the balls and greater in the case of equal load distribution. It limits the load-carrying capacity of a real bearing, compared to the theoretical static load rating. Analyzes have shown that considered thrust ball bearings do not lose operational ability at low speeds, even if there is some load eccentricity when an external axial load is not more than 30- 40% of static bearing capacity. Otherwise, additional bearing capacity analyzes are required. C3 - The 10th International Scientific Conference IRMES 2022 “Machine design in the context of Industry 4.0 – Intelligent products”, 26 May 2022, Belgrade, Serbia T1 - CONTACT STRESS AND DEFORMATIONS IN ECCENTRICALLY LOADED THRUST BALL BEARING EP - 161 SP - 156 UR - https://hdl.handle.net/21.15107/rcub_machinery_6803 ER -
@conference{ author = "Ljubojević, Pavle and Mitrović, Radivoje and Lazović, Tatjana", year = "2022", abstract = "Contact stress and deformations in the thrust ball bearing with a contact angle of 90 ° are onsidered in this paper. Ideally, an external axial load of this kind of bearings should be centric, but in reality, this force may act eccentrically. As a result, the load distribution between balls is inequal. The most unfavourable case is when the axial force intersects the radius vector of one of the balls. The load, contact stress and contact deformation of this ball are greater than the load of all rest of the balls and greater in the case of equal load distribution. It limits the load-carrying capacity of a real bearing, compared to the theoretical static load rating. Analyzes have shown that considered thrust ball bearings do not lose operational ability at low speeds, even if there is some load eccentricity when an external axial load is not more than 30- 40% of static bearing capacity. Otherwise, additional bearing capacity analyzes are required.", journal = "The 10th International Scientific Conference IRMES 2022 “Machine design in the context of Industry 4.0 – Intelligent products”, 26 May 2022, Belgrade, Serbia", title = "CONTACT STRESS AND DEFORMATIONS IN ECCENTRICALLY LOADED THRUST BALL BEARING", pages = "161-156", url = "https://hdl.handle.net/21.15107/rcub_machinery_6803" }
Ljubojević, P., Mitrović, R.,& Lazović, T.. (2022). CONTACT STRESS AND DEFORMATIONS IN ECCENTRICALLY LOADED THRUST BALL BEARING. in The 10th International Scientific Conference IRMES 2022 “Machine design in the context of Industry 4.0 – Intelligent products”, 26 May 2022, Belgrade, Serbia, 156-161. https://hdl.handle.net/21.15107/rcub_machinery_6803
Ljubojević P, Mitrović R, Lazović T. CONTACT STRESS AND DEFORMATIONS IN ECCENTRICALLY LOADED THRUST BALL BEARING. in The 10th International Scientific Conference IRMES 2022 “Machine design in the context of Industry 4.0 – Intelligent products”, 26 May 2022, Belgrade, Serbia. 2022;:156-161. https://hdl.handle.net/21.15107/rcub_machinery_6803 .
Ljubojević, Pavle, Mitrović, Radivoje, Lazović, Tatjana, "CONTACT STRESS AND DEFORMATIONS IN ECCENTRICALLY LOADED THRUST BALL BEARING" in The 10th International Scientific Conference IRMES 2022 “Machine design in the context of Industry 4.0 – Intelligent products”, 26 May 2022, Belgrade, Serbia (2022):156-161, https://hdl.handle.net/21.15107/rcub_machinery_6803 .