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Sea Slacker
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Discussion Starter #1
I am looking for a replacement ball & socket linkage between rudder tiller arm and autopilot angle indicator. It seems like a simple part - a couple of ball-head screws and a couple of sockets on threaded rod, but I can't seem to find it anywhere. Matching the size would be great (though I don't really know how they measure these things, the screws look to be about size 8).
 

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Telstar 28
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43,289 Posts
Brak-

A good machine shop should be able to make them up for you. Chances are good that the autopilot manufacturer might make them as well.
 

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Sea Slacker
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Discussion Starter #3
I tried autopilot manufacturer, but this is from the old autopilot (the ones from new one did not fit) and those guys don't really seem to care.

Custom making them might be an option but these seem like simple parts.
 

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Telstar 28
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43,289 Posts
You might also be able to find a similar linkage from another manufacturer or another piece of equipment.
 

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Tierod end

Sounds like a tierod end. Any industrial supplier can help you out. 3/16 inch thread and up to inch sizes are common. Can be fine or coarse thread pitch.
 

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Telstar 28
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Sounds like a tierod end. Any industrial supplier can help you out. 3/16 inch thread and up to inch sizes are common. Can be fine or coarse thread pitch.
The problem is getting in marine-grade stainless.
 

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Sea Slacker
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Discussion Starter #8
Yep, this is what it is but it is tiny. 3/16" inch is about twice as big as that thing should be. Material is not all that important - it is in dry location. Current one has ball-head screws made of steel (probably stainless) but sockets are plastic (which is good, they have to flex a bit in extreme end positions).

Anything made by marine hardware manufacturers is about 2 sizes too big :) I am thinking RC models, may be. Simrad is quiet on that.
 

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try your local lawn and garden equipment dealer (kubota-john deere-new holland-zetor) Those ball links are used in many places on that equipment.
 

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Take your ball linkage to a marine diesel shop. They use those on throttles and shift arms. They should be able to match up the correct size for you.
Be sure to take the linkage and the ball from your unit so they can make a match.
 

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Slimline balljoint linkage

The smallest I see are 10-32 Page 1053 MCMASTER-CARR cat.111.
www,mcmaster.com They are based in Cleveland.Their 3500 page cat. is like a bible where I work. If U can't find an item it probably doesn't exist.
 
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