"The cutless bearing is loose" - SailNet Community
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post #1 of 23 Old 09-17-2007 Thread Starter
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"The cutless bearing is loose"

In an old survey of a boat I'm looking at there is this statement

"The cutless bearing is loose (appears as though it is loose in the FRP housing)"

My understanding is that the cutless bearing is housed inside something that is glassed to the hull. Is this wrong? Is the cutless bearing glassed into the hull?

Thanks for any help
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post #2 of 23 Old 09-17-2007
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I would assume from the surveyor's GRP comment, that your boat lacks a typically bronze shaft strut (which would otherwise contain the cutlass bearing). Therefore, it may be safe to say the cutlass bearing is glassed within the hull.

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sold the Nauticat
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post #3 of 23 Old 09-17-2007
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It appears that your stern tube or strut or wherever else cutless bearing is installed is made of fiberglass. Many boats with the fin keel/long shaft outside supported by a separate strut where cutless bearing is installed, have that strut made of fiberglass, for example my old Beneteau had it made that way.
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post #4 of 23 Old 09-17-2007
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Photo of that strut is :
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post #5 of 23 Old 09-17-2007 Thread Starter
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This is a full keeled boat with no strut
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post #6 of 23 Old 09-17-2007
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Cool

From what I have seen concerning the acronym "FRP", it simply means Fiberglass Reinforced Plastic. If the shaft and the prop are sticking out from the back end of the keel fin with no additional strut supporting it, I would think that the cutlass bearing is housed at that pass through at the back of the keel fin.

What brand and model is the boat?

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post #7 of 23 Old 09-17-2007 Thread Starter
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post #8 of 23 Old 09-17-2007
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I can't make out what it looks like from that picture.. Pardon my ignorance is that a motor sailer?? Anyway most boats that have the shaft going through the hull use a thing called a "shaft log".. you can get them in bronze but i thin most are molded out of the "frp" the packing box is mounted to them also. If cutless bearing is used and that' is the only prob on the survey... it wouldn't keep me from buuuuuuuuuuuuuuying it!

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
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My boat is sold!
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post #9 of 23 Old 09-17-2007
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Denise-

Rick's photo is of his Catalac 8M catamaran... it just looks like a motorsailer... it's not.

Sailingdog

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post #10 of 23 Old 09-17-2007
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On my ship, the cutless bearing is a close fit to the stern plate... a big bronze plate to which the stern tube is screwed. The stern tube is glassed into the hull, and four great bolts bolt the plate to the hull also.

The cutlass bearing can be replaced, if you take the prop off, and loosen the locking stud that holds the bearing in place. I have done it once.
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