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Polymer Bearings

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DaveD

Well-Known Member
Joined
May 28, 2010
Messages
375
Location
Perth, Western Australia
Given their light weight and suitability for high load & low speed applications it looks to me like oil filled nylon, delrin, or PTFE filled polymer Bearings would be a good fit for a variety of homebuilt applications, especially in the control and trim systems, but they don't seem to be in common use. Is this just conservative designers preferring to use tried and tested ball Bearings, or is there some more fundamental limitations that I'm missing? I guess for primary controls the absolute minimum of friction is desirable?
 
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