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Lubricants 2015, 3(2), 447-458; doi:10.3390/lubricants3020447

Experiment and Numerical Study of Wear in Cross Roller Thrust Bearings

Department of Mechanical Engineering, Sogang University, 35 Baekbum-ro, Mapo-gu, Seoul 121-742, Korea
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Author to whom correspondence should be addressed.
Academic Editors: Romeo P. Glovnea and Michel Fillon
Received: 31 December 2014 / Revised: 13 April 2015 / Accepted: 22 May 2015 / Published: 29 May 2015
(This article belongs to the Special Issue Friction and Lubrication of Bearings)
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Abstract

Bearings are essential parts used in machine tools where high precision is required. It is important to understand bearing failure in order to replace a bearing before it affects the quality of precision. Bearing failure appears as a run-out in some applications, which is a critical factor for precision. However, previous studies have only focused on failure mechanisms, such as spalling. In this study, two types of wear models were used to predict the thrust bearings run-out: Linear and non-linear mechanisms. In order to validate the models, wear experiments of cross roller thrust bearings were performed. The average difference between the experiment and simulation run-out result was 16%. Then, the wear of different sized cross roller bearings was predicted by using a simulation. This was compared with the experiment result and showed up to a 6% difference. The suggested wear models are expected to be used to predict the failure/life of bearings. View Full-Text
Keywords: cross roller bearing; spalling; bearing failure; linear/non-linear wear cross roller bearing; spalling; bearing failure; linear/non-linear wear
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Hwang, S.Y.; Lee, N.R.; Kim, N. Experiment and Numerical Study of Wear in Cross Roller Thrust Bearings. Lubricants 2015, 3, 447-458.

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