歯車におけるポリアセタールの低摩擦化の効果 : 第2報, フッ素樹脂および鉱油を充てんしたポリアセタール

概要

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Since the abnormal wear at the dedendum of a gear made of plastic with a low coefficient of friction can prevented, polyacetal filling 10 % of fluororesin was used as a gear to reduce the coefficient of friction in the previous report. Although the gear showed high resistance to friction, it had shortcomings in that the price of the gear was high due to the high content of fluororesin, and fluororesin was hard to release from the mold. Mineral oil was, thefefore, substituted for a part of fluororesin in the polyacetal gear. This report presents the characteristics of the fluororesin and mineral-oil-filled polyacetal gear, such as the wear of the gear, the temperature of teeth and the change of the tooth profile determined by a practical test.
1991-01-25