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post #1 of 27 Old 11-04-2014 Thread Starter
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Beneteau shaft coupling

I am trying to source a new shaft/transmission coupling (as a result of cutting off the old one). Beneteau can sell one for $250 which is a bit steep. I checked Buck Algonquin catalog and they don't seem to make this size. Is there any other options? Some other manufacturers?


Last edited by skalashn; 11-04-2014 at 10:57 AM. Reason: add photo
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post #2 of 27 Old 11-04-2014
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Re: Beneteau shaft coupling

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Originally Posted by skalashn View Post
I am trying to source a new shaft/transmission coupling (as a result of cutting off the old one). Beneteau can sell one for $250 which is a bit steep. I checked Buck Algonquin catalog and they don't seem to make this size. Is there any other options? Some other manufacturers?

Not a Beneteau original part, if you knew the dimensions and the make/model of gear box it would be easier to find a match.
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Re: Beneteau shaft coupling

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Originally Posted by knuterikt View Post
Not a Beneteau original part, if you knew the dimensions and the make/model of gear box it would be easier to find a match.
The gear box is BW-7 and I can measure the coupling. Any suggestions where to look for alternatives?
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post #4 of 27 Old 11-04-2014
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Re: Beneteau shaft coupling

uh... shaft size? Guessing, it's metric?

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Re: Beneteau shaft coupling

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uh... shaft size? Guessing, it's metric?
Yes, the shaft is 25 mm tapered. Flange is 4 inches.
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post #6 of 27 Old 11-04-2014
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Re: Beneteau shaft coupling

Vetus makes some nice flexible couplings, I have the older version of this type, and have been happy with it, still going strong after 15+ years... And they come in metric sizes...

Flexible couplings - Stern gear systems

Probably gonna run more than $250 these days, however... I'm guessing you're gonna be hard-pressed to find a decent coupling for much less than that, anyway...

And, if you go with something like the Vetus, you probably won't have to destroy it by cutting it off, next time...

:-)

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post #7 of 27 Old 11-04-2014
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Re: Beneteau shaft coupling

You might try TransAtlantic Diesel . Next time, if there is one, it might be wise to query the Board about freeing a shaft from a coupling without destroying either. It is fairly easily done without pounding the crap out of the gear or destroying expensive equipment.

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Re: Beneteau shaft coupling

Vetus looks great but would only work with straight shaft. Mine is tapered.

I will check out TransAtlantic Diesel, thanks.

I would be very interested to learn how to easily get a coupling off next time! The methods I've tried are:
- soaking in PB blaster for ~ 1 month
- custom steel pressing plate + 4 bolts
- 6' three-jaw gear puller
- heating with oxy torch

No I did not forget to remove the nut! :-)
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post #9 of 27 Old 11-04-2014
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Re: Beneteau shaft coupling

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Originally Posted by skalashn View Post
Vetus looks great but would only work with straight shaft. Mine is tapered.
Your shaft is tapered on the INBOARD end?

Hmmm, not sure I've ever seen that one before...

Good luck with that, looks like you might be forking over the $250 to Beneteau...

:-)
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Re: Beneteau shaft coupling

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Originally Posted by JonEisberg View Post
Your shaft is tapered on the INBOARD end?

Hmmm, not sure I've ever seen that one before...

:-)
That's right. Both ends are tapered. Seems to be a standard thing with Beneteau.

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