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Linkage and shaft seals- where to buy ?

R/C Submarine modelers

Postby MIT » Mon Dec 22, 2003 10:18 am

Does anyone know where to buy the shaft seals and linkage seals wholesale ?

No, I am not looking to buy them from an online like subconcepts or subtech, etc (no offense guys - your great).

I am looking for the wholesaler/distributer. Is it Mccarr, Clippard, etc ?
Does anyone have a part number ?

If you don't want to post the info, please e-mail it to me at nkefalas@optonline.com

Please, I don't want any commercial folks sending me e-mails about cutting me a break on x number of quantities.

This is for a commecial experimental project.

Thank you and Happy Holidays.

Nick
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Postby Bob the Builder » Mon Dec 22, 2003 11:54 am

What's wrong with companies like SubConcepts or Subtech offering wholesale prices to your for large volumes?

That's what wholesaling is, isn't it?

Their products are tried and tested, and are well recognized for their quality.
Bob Martin,
RCSub homepage: http://www.rc-sub.com
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Postby MIT » Mon Dec 22, 2003 3:24 pm

Still looking for some help here folks.
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Postby MIT » Mon Dec 22, 2003 3:27 pm

Bob

They buy their products from "somewhere" don't they ?

I just wish to know where.

We have some custom needs at the "place" my name indicates and we need some info.

We are not going into bussiness here. We are looking to locate the supplier for specific technical questions and some potential custom work.

Please let me know if you can help.

Nick
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Postby Ramius-II » Mon Dec 22, 2003 7:51 pm

Hi Nick:
There are so many companies that it is next to impossible to single one out without knowing sizes, etc. Dubro has a line, so does Bru Line. A google search for Rubber Bellows shows companies that have quote request forms where you can get information on price and availability. I would recommend e-mailing several of them with you requirements and a request for referrals. I found Bru Line at the towerhobbies site and they have both water and fuel resistant types. Greg at Engler or Al at Ships N' Things or the guys at SubConcepts or Subtech might be another starting point if you ask them. I can think of no reason they would not support your efforts after all you are not competition. If you wish to "buy" or receive reasonably small quantities at a discount, most companies will send out "Engineering Evaluation" units at no cost. The best way to ensure this is to first call their sales department and offer to fax a "letter of request" on school letterhead.

Best Wishes for the Holidays, Ed
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Postby MIT » Mon Dec 22, 2003 8:58 pm

Thanks Ed

I was looking for the suplier or manufacturer because we need to order some different sizes than those featured on the web sites. i.e. 1/2" shaft or others.

We are also looking at quantities of 50 plus.

Maybe I should just contact Skip or Subconcepts or someone else to find out who make these seals for them.

Any other inputs welcomed.

Nick

Happy Holidays to all !
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Postby Tommydeen » Tue Dec 23, 2003 1:03 am

Try Vestpak.no


Tom
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Postby fung pang » Tue Dec 23, 2003 1:14 am

:p i have not yet see a "r/c sub" use a 1/2 in drive shaft :p

but do a seach on : cup seal + marine

i end up finding a torpedo?

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Postby Davy » Tue Dec 23, 2003 5:31 am

Try a US stockist for Simrit (seals O rings etc) A big company and mentioned in the "Model Submarine Technology" book.

www.simrit.com/


Happy Christmas all!
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Postby safrole » Tue Dec 23, 2003 2:20 pm

I believe the industry term for what you seek is "radial lip seal" or "radial lip shaft seal", that is, a seal for a rotating shaft which is bound by an internal spring.

http://www.ashtonseals.com/LipSeals.html

http://www.sealingspecialties.com

http://www.usseal.com/Lipseal/1.htm

http://www.busakshamban.us/wlb_global.htm?wlb=1
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Postby MIT » Wed Dec 24, 2003 3:37 pm

Safrole and Davy Thank you !

I think we got it with that one.

We are doing some research for the NSF and the NAVY (actually we do alot of research for them, but this is just one project).

I am not a liberty to say, but its pretty cool if it works.

A lot of time in the "pool" on this one !

I am also trying to build my Robbe U-47 on the side. At least for that one I have "instructions" !!

Happy Holidays to all and thanks for your help !

Outstanding !

Nick
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Postby MIT » Wed Dec 24, 2003 3:40 pm

fung pang wrote::p i have not yet see a "r/c sub" use a 1/2 in drive shaft :p

but do a seach on : cup seal + marine

i end up finding a torpedo?

fung pang

Its a little big !
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Postby Ramius-II » Fri Dec 26, 2003 11:41 am

Hi Nick:
Probably the best bet then is to call McMaster-Carr and ask for their manufactures rep. Be prepared to answer a list of questions starting with the type of material. Is it Polyurethane, Neoprene, Buna-N, Viton, Teflon, Kalrez, Ethylene Polypylene (EPDM), or Silicon, temperature range. Then there are the ever-popular Durometer standards. Even at the quantity you're talking about you can most likely still get them free or low cost. Large companies donate to schools all the time and all that is necessary is to show that it is a donation and you're not somebodies relative, etc.

Hope you had a great holiday,

Ed
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