온도, 속도, 그리고 하중 변화에 따른 볼 베어링용 그리스의 수명평가Life Evaluation of Grease for Ball Bearings Accordingto Temperature, Speed, and Load Changes
- Other Titles
- Life Evaluation of Grease for Ball Bearings Accordingto Temperature, Speed, and Load Changes
- Authors
- 손정훈; 김세웅; 최병호; 이승표
- Issue Date
- 2021
- Publisher
- 한국트라이볼로지학회
- Keywords
- FT-IR; ball bearing; grease life evaluation; grease life test machine; weibull; 그리스 수명시험기; 그리스의 수명평가; 볼 베어링; 와이불; 적외선 분광분석
- Citation
- 한국트라이볼로지학회지, v.37, no.1, pp.7 - 13
- Indexed
- KCI
- Journal Title
- 한국트라이볼로지학회지
- Volume
- 37
- Number
- 1
- Start Page
- 7
- End Page
- 13
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/138783
- ISSN
- 2713-8011
- Abstract
- Ball bearing is a device that supports and transmits a load acting on a rotating shaft, and it is a type of rolling bearings that uses the rolling friction of the balls by inserting balls between the inner ring and the outer ring. Grease, which is prepared by mixing a thickener with a base oil, is a lubricant commonly used in bearings and has the advantage of a simple structure and easy handling. Bearings are increasingly being used in high value-added products such as semiconductors, aviation, and robots in the era of the 4th industrial revolution. Accordingly, there is an increasing demand for bearing grease. The selection of grease is an important factor in the bearing design. Therefore, a study must be conducted on the grease life evaluation to select an appropriate grease according to operating conditions such as a high temperature, high rotational speed, and high load. In this study, we evaluate the life of ball-bearing grease according to various operating conditions, namely, temperature, speed, and load changes. For this, we develop and theoretically verify a grease life test machine for ball bearings. We conduct a life test of grease according to various operating conditions of bearings and predict the grease life with a 10% and 50% failure probability using the Weibull analysis. In addition, we analyze the oxide characteristics of the grease over time using the Fourier transform infrared spectroscopy and the deterioration characteristics of the grease using the carbonyl index.
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Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
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