低速平歯車の摩擦損失に関する研究 : 潤滑油及び歯形の影響

概要

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Friction of spur gears was studied and evaluated under the conditions of high loads and low speeds. In this study the lowest circumferential velocity of any test gear was about 0.03 m/s. In order to obtain these test conditions, a power circulating test equipment, of which center distance was a=48mm, was used. The test results show that the coefficient of friction μ on the tooth surface at an extremely low speed is about 0.10 lubricated with oils having no EP additives. It was also shown that EP additives decrease the coefficient of friction about 25%. But this effect was obtained at a high temperature. The lower the oil temperature, the lower the effect and also the higher the circumferential velocity, the lower the effect. In the case of low speed and lubricated with hand lubrication at room temperature, the kind of oil used does not affect the friction loss.
一般社団法人日本機械学会の論文
2000-02-25