Development of Graphite Bushing for Bearing

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J. Korean Ceram. Soc. > Volume 34(8); 1997 > Article

Journal of the Korean Ceramic Society 1997;34(8): 797.

베어링용 흑연재 Bushing 개발

김경자, 조광연, 정윤중¹, 임연수¹

기술품질원 요업기술원
¹명지대학교 무기재료공학과

Development of Graphite Bushing for Bearing

ABSTRACT

The use of carbon materials in mechanical components such as bearings, seals, and bushings that do not require lubricants is increasing rapidly. This paper reports on establishing the optimal condition for resin-bonded carbon materials. We fixed the content ratio of materials, which include graphite powder and diatomite as a lubricant modifier and a friction modifier, respectably, with resin used as a bonding material. We then produced bushings using hot-pressing within the temperature range of resin curing. The properties of bushing, the friction coefficient, wear rate and the mechanical strengths are discussed in relation to the content of respective materials, with correlation of friction coefficient and sliding distance. Finally, we examined the friction coefficient changes according to the applied load on bushing and the friction coefficient changes according to contact speed of bushing.

Key words: Lubricant modifier, Friction modifier, Resin-bonded carbon