A resin composition for a dust-resistant sliding member, comprising 0.5 to 5.0 parts by mass of a lubricant that is liquid at 25°C and is composed of at least one material selected from the group consisting of ethylene/a-olefin copolymers, poly-α-olefins and silicones, and 0.1 to 30 parts by mass of an inorganic filler, per 100 parts by mass of a polyacetal resin.
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