[TowerTalk] Which Thrust Bearing to Use

[charlie at thegallos.com]

> Delrin has very limited life in the heat and UV. I lived in AZ for 35
> years.
> N7RT/4
<snip>

Ah, but remember, it isn't exposed to UV, as it is INSIDE the bearing
housing.  Heat is an issue, which is why I did NOT suggest Delrin, but
Nylatron is good at much higher heat levels.  For that matter, filled
Delrin is good at higher heat levels, which is why I brought up creep