Groove shape effect on wear behavior in PTFE radial bearings under rolling contact fatigue (RCF) was investigated. RCF tests in water-lubricated conditions were carried out at different loads and rotation speeds. The groove surfaces after testing were observed by using a laser confocal microscope and a two-dimensional shape measurement sensor. It was found that PTFE bearings under RCF generate wear debris, however no cracking or flaking failure could be observed. It is concluded that groove deformation depend on load rather than rotation speed. The biggest changes in groove profiles occurred when tested at loads close to 400N.
机构:Indian Institute of Information Technology Design and Manufacturing Jabalpur,Tribology and Machine Dynamics Laboratory, Department of Mechanical Engineering
M. Amarnath
I. R. Praveen Krishna
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机构:Indian Institute of Information Technology Design and Manufacturing Jabalpur,Tribology and Machine Dynamics Laboratory, Department of Mechanical Engineering
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THK Co Ltd, Fundamental Technol Res Dept, Tribol & Reliabil Sect, Ohta Ku, Tokyo 1440033, JapanMeiji Univ, Sch Sci & Technol, Dept Mech Engn Informat, Tama Ku, Kawasaki, Kanagawa 2148571, Japan