Autohelm ST50 Wind Bearing Repair

Autohelm ST50 Wind Bearing Repair

Postby Dolphin » Sun May 27, 2012 1:17 pm

G'Day,
I thought you might be interested in this little job.
I had to replace the bearing in the wind sensor. This is the 2nd bearing I have replaced. THe last one fell apart.
The bearigns are no longer available from Autohelm Aust and the arm is obsolete. A replacement arn is about $500 and reads 25% low. It's a different design.

THe bearings are available through any leadiing bearing supplier like CBC or in my case Bearing Service Corp, BSC Motion Technology. THey are about $12 ea. plus postage.

The bearings push off and there are normally two small circlips but I lightly centre popped the bearing area on the shaft and applied Loctite. All the components are easily hand assembled. THe bearing is a bit tight at the moment, needs a near gale to get it going, but it will free itself up with use.
Attachments
P1030313a.jpg
Exloded view of the wind sensor
P1030313a.jpg (58.04 KiB) Viewed 1900 times
Greg
Felicite Mk III
Lake Macquarie
"After it's all said and done, there is a lot more said than done!" Aesop 620 BC
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Re: Autohelm ST50 Wind Bearing Repair

Postby lockie » Sun May 27, 2012 4:17 pm

Good for you Greg. Many bearings & seals are just generic types obtainable from SKM etc, at a fraction of OEM's price. Same goes for belts.
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Re: Autohelm ST50 Wind Bearing Repair

Postby Troppo » Sun May 27, 2012 8:44 pm

Well done! How did you know what the right replacement bearing was?

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Re: Autohelm ST50 Wind Bearing Repair

Postby Dolphin » Sun May 27, 2012 9:59 pm

I just measured the bearing and rang a supplier.
They did the rest.

A bit expensive but it is a small order.
Greg
Felicite Mk III
Lake Macquarie
"After it's all said and done, there is a lot more said than done!" Aesop 620 BC
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Re: Autohelm ST50 Wind Bearing Repair

Postby Troppo » Mon May 28, 2012 10:06 am

Dolphin wrote: A bit expensive but it is a small order.


You're kidding, right? I don't think that is expensive. You saved yourself having to spend a heap on new equipment. And you got the piece using the phone so you didn't even spend a tankful of fuel driving around everywhere hunting for it.
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