• Title/Summary/Keyword: lubricant solid lubricant oilless bearing PTFE

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A Study on Manufacturing and Characteristics of solid Lubricant Oilless Bearin (고체윤활 베어링의 제조방법 및 특성연구)

  • Kim, Chang-Uk;Ryu, Su-Hyeon
    • Korean Journal of Materials Research
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    • v.11 no.11
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    • pp.991-996
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    • 2001
  • This study is the manufacture of solid lubricant oilless bearing using sintered parts. PTFE was as organic solid lubricant and $MoS_2$ as inorganic solid lubricant, and its characteristics were studied. Thickness of lubricant was suited 25~$100\mu\textrm{m}$ for lubricant characteristics. Curring temperature of MoS_2$ film was 12$0^{\circ}C$, 2 hours and that of PTFE film was $260^{\circ}C$, 20 minutes. The solid weight and solid volume of $MoS_2$ film was 51.7% and 27.4%, and that of PTFE was 44.9% and 24.3%. Chemical resistant of PTFE solid lubricant oilless bearing was excellent as salt test was 520hours, and usable temperature range was $-200~+280 ^{\circ}C$. Conduction of electricity can be increase by addition of graphite or $$\alpha$- PbO_2$. The electric conductivity was 100~180$\Omega$.

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