焼損による工作機械の精度の変化について : 第2報, 軸受について

概要

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In this paper, we studied the changes of the accuracy and the performance of the ball bearings. As a result of experiments, we have obtained the following empirical formula : p=ae^<bt> in which p : the decrease of the accuracy, t : the fire temperature, a and b : constants. We discovered that the fire damaged bearings could not be used under the heavy load, but unless strict accuracy is required, the bearing that has been exposed to the heat not higher than 600℃ can be used again as it is. However in this case the load on the bearing should be limited to a light load and the factor of safety must be big enough, say 5 or even more. We have verified the above by the endurance tester. We made a similar researches as to the plain bearing, and we discovered that the changes of the performance were not so rapid as compared with the ball bearing.
一般社団法人日本機械学会の論文
1961-03-25