The New replacements are made of Delrin, just as the original ones.
The superior performance characteristics of Delrin include but are not limited to:
Delrin's resistance to liquids and low coefficient of friction have also made it useful as a bearing-replacement, to be selected in cases where corrosive environments make a traditional roller or ball bearing impractical.
Its low cost, adequate strength, light weight and self lubricating properties make it ideal.
Nylon-based products such as Nylatron do not have good moisture-resistance, and are therefore not suitable to high-humidity or underwater applications.


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