中硬度歯車の面圧強さに関する基礎研究 : 第1報, 同一硬さ対における表面粗さの組合せの影響

概要

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Usually, the conditions of finished tooth surfaces are different between a pair of pinion and gear of the medium-hardness gears (the hardened and tempered gears), because their sizes, materials and hardness are often different each other. The authors investigate the influence of roughness combination of a pair of gears on their surface durability using a disk machine with rolling and sliding. The first report deals with the case of the same hardness combination, and the results are summarized as follows : (i) The pairs of disks with the combination of the surface roughness 10 μm and 1 μm R_<max> have the pitting limits of about 0.26 HB kgf/mm^2, while the pitting limit of disk pairs with 10 μm R_<max> is about 0.1 HB kgf/mm^2. (ii) However, the disk with smooth surface (1 μm R_<max>) is worn out considerably, and further the pits of the lower speed disk with smooth surface occur earlier than those of the higher speed one with rough surface. (iii) When a pinion with smooth surface mates with a gear with rough surface, the above facts indicate that the pitting and wear resistances of pinion should be made higher than that of gear.
一般社団法人日本機械学会の論文
1989-04-25