Skeg Bearing

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tufty
Posts: 7
Joined: Mon May 15, 2017 9:48 am

Skeg Bearing

Post by tufty » Tue Oct 16, 2018 6:56 pm

Has anyone used Delrin for the bottom bearing in the skeg instead of tufnol? I fancy giving it a go as I'm on a mud berth in the river Itchen. Just to try it out.
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Skeg Bearing & Bolts
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Keith 66
Posts: 13
Joined: Sat Aug 05, 2017 7:36 pm

Re: Skeg Bearing

Post by Keith 66 » Sun Nov 18, 2018 9:23 am

Tufnol was used originally, Delrin should also do fine for the job, bear in mind that some plasics can absorb water & swell noticeably. I had this on a yacht i built, Engineer who supplied the rudder tube & shaft fitted two nicely fitted nylon bearings, two weeks after first launching the rudder had locked solid. It was hells own job to get it out & involved lots of thumping with a big hammer. Replaced with tufnol & no problems.

jezza
Posts: 8
Joined: Tue May 09, 2017 7:03 pm

Re: Skeg Bearing

Post by jezza » Sun Nov 18, 2018 10:26 am

Delrin is a trade name for acetal, which comes in grades approved for use with potable water. It should not swell by absorption. Personally, I'd stick with Tufnol.
Jerry Jones
Sea Spear
Plymouth

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