There shouldn't be friction, the shaft rotates freely. I do however plan to leave it out in the sun on the driveway when we get some good hot days, just in case hot temperatures are an issue. Though in the water that would be rather unlikely.
________________________________
From: owner-personal_submersibles@psubs.org on behalf of Jon Wallace
Sent: Mon 5/25/2009 8:42 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Precision prop shaft
Nice job Alec. One question I have given the close tolerances. I
wonder if friction caused by rotation of the shaft will cause expansion
of the shaft such that it binds or locks up. Any thoughts on this?
Jon
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