Friction and Wear Properties of PTFE Sliding Seals -Influence of Surface Conditions of Seal Gland on Friction Properties-

概要

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Sealing devices are needed to prevent dust and water invading the positioning mechanisms of outdoor equipment. The frictional resistance generated by the seal frequently obstructs the smooth motion of the mechanism. The friction properties for high-speed and precision control mechanisms are required to be low and stable without lowering the sealing performance. In this study, the influence of the surface conditions of seal gland for PTFE sliding seal on friction properties was investigated experimentally. As a result, it has been found that the suitable surface condition of the seal gland for a high-speed and precision control mechanism is the electroless-nickel-plated surface of 0.1 μm Ra