The Structural Factors Causing the Deviation of Measured Pivoting COF of Spherical Bearings from Assignment

Abstract:

This paper expounds on the deviation of measured coefficient of friction from the assignment when the friction pair of the spherical bearing changes from plane structure into spherical structure, and summarizes the common explanation of such phenomenon of the past. Through the analysis on the methods of the measurement test for the coefficient of spherical pivoting friction and an in-depth analysis on the relation between the motion state and relative motion of the internal parts of the spherical bearing generated by rotating it based on this method, a new calculation formula for the coefficient of pivoting friction of the spherical bearing is put forward, which is of great significance to in-depth understanding of the structural principles of spherical bearing, precise structural design and sound bearing applications.

• Periodical: Applied Mechanics and Materials (Volumes 501-504)
• Pages: 801-804
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.501-504.801
• Online since: January 2014
• Authors: Yu Xin Hu, John Xia*, Hong Xiao Hao, Xin Yun Leng, Hong Feng Guo
• Keywords: Coefficient of Pivoting Friction, Finite Element Analysis (FEA), Spherical Bearings, Structural Principle

References

[1] European committee for standardization. EN 1337-7 Spherical and cylindrical PTFE bearings. ( European 2004).

[2] Chinese national standardization committee. GB/T 17955 Spherical bearings of Bridge (China zhijian publishing house, China 2009).

[3] Junsheng Zhuang: Bridge bearings( China railway publishing house, china 2000).