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Best ball link?

Old 12-16-2010, 10:50 PM
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acw
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Default Best ball link?

I'm looking for some very heavy duty,metallicball link, with ball bearings. This is for the full flying stab of an SM Mig 29.

Any idea what the best choice is? I prefer to avoid plastic...

Thanks

Arnaud
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Old 12-16-2010, 11:20 PM
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Default RE: Best ball link?

look here: http://www.igus.ch/wpck/default.aspx?pagenr=2446
Fritz/Switzerland
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Old 12-16-2010, 11:33 PM
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Default RE: Best ball link?


ORIGINAL: Heer

look here: http://www.igus.ch/wpck/default.aspx?pagenr=2446
Fritz/Switzerland
Plastic outer casing and plastic ball as standard, you can specify a SS ball.

Mike
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Old 12-17-2010, 12:51 AM
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Default RE: Best ball link?

They are available as aluminium holders with steel balls, for M3 and M4 pushrods, Aviation Design has them, see www.adjets.com and select the hardware link on the menu. Someone in the USA must stock them or similar with UNC threads that Americans prefer.
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Old 12-17-2010, 02:48 AM
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Default RE: Best ball link?


...maybe this http://dreamworksrc.com/catalog/prod...oducts_id=1064

i use this links http://dreamworksrc.com/catalog/prod...oducts_id=1058

with this ballends http://dreamworksrc.com/catalog/prod...oducts_id=1075

...and with a drop of thin CA in the ball any slop will go away


my 2c
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Old 12-17-2010, 02:51 AM
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Default RE: Best ball link?

Look here. WWW.intairco.net Paul.
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Old 12-17-2010, 05:20 AM
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Default RE: Best ball link?

I get mine through Conrad Electrical, they are a European company: http://www2.conrad-uk.com/goto.php?artikel=206075 they come in various sizes from M2 ball too M3 female thread, up to M3 ball and M3 female thread, they also have them with Male threads, good site to look through.

Mike

EDIT: Forgot that price quoted is for 4 number, so very inexpensive.
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Old 12-17-2010, 06:47 AM
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Default RE: Best ball link?

That's an excellent find Mike, thanks for that.
Can anyone explain the difference between the one Mike linked to and this one from the same site http://shop.conrad-uk.com/hobbies/mo...ts/216429.html
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Old 12-17-2010, 06:57 AM
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Gary Jefferson
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Default RE: Best ball link?

Arnaud,

McMaster Carr has a heavy duty 6-32 aluminum ball end and even larger if you need. I used the 6-32 and it is beefy. You can order the 6-32 rod from them in stainless as well, much higher strength. I added carbon tubes over the rod and sandwiched the carbon rod between the ball links snugly. This gives a very robust setup. The hole is 1/8" I believe, which I think fits either a 4-40 or metric bolt. Can't remember without checking.

If you need the part numbers for the ball end and rod let me know. I kept the receipt.


http://www.mcmaster.com/#ball-joint-linkages/=a6qhhz

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Old 12-17-2010, 08:23 AM
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Default RE: Best ball link?

Baldy, thanks for the Conrad link, interesting stuff on there.

I wish we had a McMaster-Carr in the UK [sm=cry_smile.gif]
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Old 12-17-2010, 10:55 AM
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Default RE: Best ball link?

Arnaud,

Check this site: www.rcrockcrawling.com they have both aluminum and steel in metric as well as SAE. I've used them on my AirWorld F-5 & SkyGate Hawk.

Select the title "Rod Ends" under their Products Listings for 21 different sizes/types.

http://www.rcrockcrawling.com/produc...0dfe2046d4d87a

David S



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Old 12-17-2010, 11:53 AM
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Default RE: Best ball link?


ORIGINAL: HarryC

That's an excellent find Mike, thanks for that.
Can anyone explain the difference between the one Mike linked to and this one from the same site http://shop.conrad-uk.com/hobbies/mo...ts/216429.html
I think you will find the brass bolt sticking out the side is a locking mechanism for the push rod and that the ball is not removable from the head, perhaps the easiest way is to order some and have a look?

Mike
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Old 12-17-2010, 01:33 PM
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Default RE: Best ball link?

For THE best Nylon ball-link M3 through bolt, double standoff look at Toni Clark in Germany...superb quality

Dw
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Old 12-17-2010, 11:56 PM
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Default RE: Best ball link?

Guys, thanks a lot for all the suggestions. This is very helpful. I definitely plan to use something larger than our usual 4/40 part this time.

Arnaud
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Old 12-23-2010, 11:45 AM
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Default RE: Best ball link?

I like all the new choices i have.

here is a shot of the ball links that came with my Comp-Arf Lightning. there are two types, one with a longer "flange/edge" and one with a shorter one. it is great as a built in spacer between the dual phenolic control horns.

i bought some extra's from Ray Labonte

and, Keith Sievers was nice enough to give me a few of the longer flanged ones.

2 questions.

1. the ball is pretty stiff on some of them. how do i get it to be more "loose" without making it sloppy
2. where the heck can you order these-Ray only had a limited amount.

thanks-Merry Christmas-Happy New Year.

joe
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Old 12-23-2010, 12:52 PM
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Default RE: Best ball link?

Joe,
Not sure where you can get those, but when you find them, let me know! I'm using the same ones in my C-arf Eurosport that has about 3 seasons on it now, and they loosen up over time on their own.
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Old 12-23-2010, 01:01 PM
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Default RE: Best ball link?

.
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Old 12-24-2010, 09:56 AM
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Default RE: Best ball link?

Well

Ray Labonte has some-think he ordered 50 or so of the ones with the "short" little projections out side of the ball.

one of the websites in this post showed some "Heim" joint, that looked similar.

i see someone sent a partial message, perhaps it was to to make the ball a bit looser?

thanks

Merry Christmas.

joe
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