Acetal AF Blend (Delrin AF Blend) is a special formulation of Delrin blended with 13% Teflon fibers added for enhanced wear characteristics and a lower coefficient of friction. Delrin AF Blend retains approximately 90% of the strength and rigidity of Delrin but with improved bearing and sliding properties. Delrin AF, with its excellent sliding and friction properties, is especially suited for use with moving parts where low friction and long wear are important. Bearings made of Delrin AF sustain high loads when operating at fast speeds and show little wear. These nonlubricated bearings are also essentially free of slip-stick behavior because the static and dynamic coefficients of friction are equal.
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