Delrin is better

["Ken Keith" <ken.keith@specialdevices.com>]

I just spoke to one of our molding engineers at work, and I noticed that he had 
some kind of documentation for Delrin, the material.

I asked him about it's lubricating properties, and he showed me a composition 
sheet of some sorts, and it listed among the constituents, a lubricant (like 
2-5%), and fiberglass.

I mentioned the problem I and others have experienced with noisy urethane 
bushings, and he understood exactly why they would be noisy.  He said that 
Delrin would probably be a better material, and would most likely not squeak.
He said it was also stronger.

So, there it is.  Someday I might get Delrin bushings.  Right now, I have 12 
brand new stock ones that I'm going to put in (only 8 at a time!) my 4ksq.  
Once they go bad, if they do, I'll look into getting Delrin.

Later,

Ken