すべり軸受の温度上昇計算方法

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We have showed a numerical calculation method for temperature rise under grease lubrication plain bearing,and measured experimentally,and in addition compared with them.Lubricants were greases of NLGI0 lithium soap and NLGI000 urea,and gear oils ISO VG 150 and 220 for comparison with those greases.Temperature rise 0th by numerical analysis method was calculated by the ASME method.Bearing average pressure Pm was 0.49 to 11.2MPa,and sliding speed V was 0.03m/s to 1.01m/s.The main results obtained in this study are as follows;(1)Although 0th was higher than 0ex(by experimental method)at lower V,however smaller at higher V.(2)0th/0ex under grease and gear oil lubrication saturated approximately 0.5 and 0.8 at higher V,respectively.(3)The formula to calculate 0ex was presented easily to predict suitability of greases to an expected application.Based on this study result,gear motors lubricated by NLGI000 grease were developed.More than 10years have elapsed and volume of shipments has now reached over about 300,000units.
独立行政法人国立高等専門学校機構の論文