Masthead sheave--help me find--please! - SailNet Community
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post #1 of 28 Old 02-21-2017 Thread Starter
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Masthead sheave--help me find--please!

Ok everybody, help me find a 60mm x 12mm masthead sheave please. I have searched high & low for hours and cannot find this. I have an O'Day Daysailer and according from Rudy at D&R, a few of these boats were fitted with a racing mast which mine apparently has (added stiffeners running down each side of the mast) The masthead sheave is 2 3/8" x 1/2" or roughly 60mm x 12mm.

I sent Rudy a photo of this and he has never seen this set up before. The one that is in there is pretty chewed up and I really want to replace it. It has a 1/4" bore hole and handles the normal 1/4" halyards for the Daysailer. A nylon or Delrin would be nice--not any type of metal. The one that is in there looks like what we called in the military Bakolite (attached a photo).
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Masthead sheave O'Day Daysailer.JPG  

1985 O'Day 26'

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Re: Masthead sheave--help me find--please!

Ed will make you one
Zephyrwerks - The Sheave Factory
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Re: Masthead sheave--help me find--please!

Nylon and Bronze Sheaves

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Re: Masthead sheave--help me find--please!

Any machine shop can make a simple or complex (with bearings) sheave out of almost any material for you at a fairly reasonable price.

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Re: Masthead sheave--help me find--please!

Thanks---I gave Zephyrwerks an email shout for a quote. The Duckworks didn't have my size.

1985 O'Day 26'

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Re: Masthead sheave--help me find--please!

If you can find one with all the right dimensions
except width, you can sand it down to the right
width. Good luck.
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Re: Masthead sheave--help me find--please!

Make one! Hole saw a plastic cutting board, put a bolt through the middle hole, put the bolt in a drill turn it on, and scrape or sand the edge like a pulley.
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Re: Masthead sheave--help me find--please!

Quote:
Originally Posted by deniseO30 View Post
Make one! Hole saw a plastic cutting board, put a bolt through the middle hole, put the bolt in a drill turn it on, and scrape or sand the edge like a pulley.
I agree. Not too difficult. May take a couple
to get it right, but inexpensive.
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Re: Masthead sheave--help me find--please!

Rigrite has a good selection. Didn't look for your size, I know they do have what I would need for my C&C.
I have never ordered from them, no idea about quality of service.

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Re: Masthead sheave--help me find--please!

Or find a friend with a lathe or at least some creatvity

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