[alberg30] Re: Main Halyard Sheave Replacement

[Amy & David Swanson]

From: Amy & David Swanson <zira at mindspring.com>

Lee -

What sort of bearing or bushing did Joe Palmer use in the sheave he made for you?
I can get one machined from aluminum for free, or from various polymers for the
cost of the materials.  I have not seen any bearings that look appropriate (load
capacity & corrosion resistance) in any of my industrial catalogs (McMaster Carr,
etc.), and I'm not sure that a plain bronze bushing is the right way to go.  I
have not yet disassemble the masthead to see what the old one looks like, I was
planning to do this over the winter.

Thanks again.

dls

FINNUS505 at aol.com wrote:

> From: FINNUS505 at aol.com
>
> Hi Friends,
>
> My source for the main halyard sheave replacement was Joe Palmer at Tartan
> Yachts in Ohio. He made a new sheave out of the same polymer material that is
> used in commercial cranes ( I forgot what its exact name is), and he did a
> nice job. Cost was about 30 bucks.
>
> I didn't like the condition of the retaining plates, and the compression
> sleeve that the sheave rolls on was frozen to the bolt, so I had all new parts
> fabricated by Joe. I had the retaining plates made of aluminum that was double
> the thickness of the original, so I had to grind out the mast slot to fit the
> parts in.
>
> Total cost for sheave, retaining plates, ss bolt, and compression tube, and
> shipping was just over 100 bucks. I mailed him all the original parts so he
> could use them as templates.
>
> I didn't choose to go for the two smaller sheave arrangement because I didn't
> trust myself to measure and drill the two new holes in the mast ( well, four
> new holes if you consider both mast walls) accurately enough. If they are off,
> the sheaves will be crooked, and there will be chafe.
>
> I got a quote from Rich Krolak at Chessapeke Rigging for the same parts, and
> he was going to make an aluminum sheave, and anodize all the parts. His quote
> came to nearly 300 dollars.
>
> Joe Palmer can be reached at 1-800-486-7245
>
> Customer Service Co.
> 203 River Street
> Grand River, OH 44045
>
> (I have found it is usualy a pleasure dealing with people in the Midwest!)
>
> Good luck,
>
> Lee Trachtenberg
> Stargazer #255
>
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