玉軸受の摩擦モーメントに関する研究 : スラスト荷重を受け, 高速回転する場合

概要

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In the previous paper, in a low speed range the friction moment of radial ball bearings under thrust load was analysed theoretically and the theory was confirmed by experiments. Moreover, it was pointed out that the moment increased with the rotational speed of the bearing because of the visous friction of lubricant. In this report, in a high speed range the theoretical analysis of the friction moment of the bearing under thrust load is compared with experiments. Supposing the hydrodynamic lubrication in the ball bearing, the formula of the moment is induced approximately from the hydrodynamic lubrication theory of rolling cylinders. The moment is measured under various conditions of the speed, the load and the viscosity of lubricant. The agreement of the observed values with the calculated ones is fairly well.
1962-09-25