UV is a bad thing. I'll figure something out. I have a rubber washer on top of my hydraulic backstay adjuster to protect the top seal.
Dennis C. On Wed, May 8, 2019 at 3:37 PM Della Barba, Joe via CnC-List < cnc-list@cnc-list.com> wrote: > The stainless collar I have on the shaft above my bearing keeps sun off > the area right next to the shaft. If the hole gets too big it will be from > wear, not UV. > > > > Joe > > Coquina > > C&C 35 MK I > > > > *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *Dennis > C. via CnC-List > *Sent:* Wednesday, May 08, 2019 4:29 PM > *To:* CnClist <cnc-list@cnc-list.com> > *Cc:* Dennis C. <capt...@gmail.com> > *Subject:* [EXTERNAL] Re: Stus-List 35-1 Upper rudder bearing modification > > > > Neil, > > > > Yeah, I knew Delrin wasn't the best. Considered UHMW, but the Delrin was > convenient. > > > > Regardless of the disc, I see having a sleeve bearing set in the disc that > I can easily change as an advantage. Would be easier to swap the bearing > than to refabricate the disc with the 6 bolt holes and the center hole each > time. > > > > As I said at the end of my document, maybe a non-metal sleeve bearing. > > > > Just a "play" project for now. > > > > Dennis C. > > Touche' 35-1 #83 > > Mandeville, LA > > > > On Wed, May 8, 2019 at 2:28 PM schiller via CnC-List < > cnc-list@cnc-list.com> wrote: > > Dennis, > > I think your problem is accelerated by UV degradation. Delrin isn't all > that good in UV exposure. I would suggest using bearing grade PEEK but > that is a lot of overkill. You may gain some advantage by making a > sunbrella cover for it (or just replace it every 7 years). > > > > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
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