Study on fluid film formation and friction characteristic of radial lip seals

Yuki Sato, Joichi Sugimura, Yuji Yamamoto

    研究成果: Contribution to journalArticle査読

    3 被引用数 (Scopus)

    抄録

    The 3-D fluid film profiles of radial lip seals were measured using a laser induced fluorescent technique and the effect of the sealing surface roughness of lip seals on the lubrication mechanism was investigated. Seals with rough surface exhibited high sealing ability and those with smooth surface had no sealing ability but caused leakage. The average film thickness of rough surface seals under sealing conditions, which decreased from the sump side towards the air side in the axial direction, ranged from 1 to 10 μm according to operating conditions. Under pumping conditions, the film shape became axial symmetric and the film thickness increased to about 4 to 10 μm, particularly near the air side. In contrast, the average film thickness with smooth surface seals was about 1 μm over the whole sealing area. The smooth surface seals exhibited more than twice as high friction coefficient as the rough surface seals at larger non-dimensional parameter G.

    本文言語英語
    ページ(範囲)494-502
    ページ数9
    ジャーナルToraibarojisuto/Journal of Japanese Society of Tribologists
    48
    6
    出版ステータス出版済み - 1 1 2003

    All Science Journal Classification (ASJC) codes

    • 材料力学
    • 機械工学
    • 表面および界面
    • 表面、皮膜および薄膜
    • 材料化学

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