潤滑下における固体潤滑剤の効果 : すべり軸受への試案

概要

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As a method for extending the life-time of the sliding bearing, to form continuously solid lubricant layer on the frictional surface may be taken into consideration. Therefore, this paper describes on the effects of the solid lubricants upon the coefficient of friction and wear properties of sliding bearing materials. This effects are measured at sliding speeds under various lubrication conditions by a cross bar type testing machine. Three kinds of solid lubricants, such as molybdenum disulfide (MoS_2), graphite, and polytetrafluoroethylene (PTFE), are used for two cases of study, 1) in case of lubricating mixtures of powder with a white oil, 2) or, in case of forming the layer by pushing pellet of solid lubricants on the frictional surface of rotating specimen with pouring the white oil. The results obtained are as follows : (1) Under pouring white oil, the coefficient of friction is not so much affected by existence of solid lubricants. (2) As to effects of wear-resistance, PTFE is quite effective regardless of the applied types of the powder or pellet. (3) However, as for MoS_2 and graphite, wear-resistance is effected greatly when powder was used at low speed, and pellet was used at high speed.
公益社団法人精密工学会の論文
1985-07-05