Has anyone replaced the bearings in a ST50 autohelm masthead wind transducer? Mine are beyond a shot of WD40 and I either need to replace the bearings or get a replacement masthead wind unit. Any advice on replacing the bearings or locating a replacement are appreciated!
Raymarine / Autohelm ST50 Windvane
- Thread starter DanG
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Ops, Pushed the button too soon. DMI Marine at:
DMI Marine, Inc.
18 Commerce Park Road
Pocasset, Ma 02559
main phone number: 508-564-7491
fax number: 508-564-7497
email: dmi@dmimarine.com
DMI Marine, Inc.
18 Commerce Park Road
Pocasset, Ma 02559
main phone number: 508-564-7491
fax number: 508-564-7497
email: dmi@dmimarine.com
Raytheon Masthead Unit - ST50
The Anemometer Bearings are as below and I would guess the wind vane uses the same bearing set:-
The bearing code is DD 830 ZZ which means OD 8mm, ID 3mm, width 4mm and ZZ means non-contacting shield. Two bearings required from NMB in Japan.
Raytheon Masthead Unit - ST50
The bearing code is DD 830 ZZ which means OD 8mm, ID 3mm, width 4mm and ZZ means non-contacting shield. Two bearings required from NMB in Japan.
Here's a source for you.
http://www.vxb.com/Merchant2/mercha...earings&Product_Code=kit749&Category_Code=3mm
http://www.vxb.com/Merchant2/mercha...earings&Product_Code=kit749&Category_Code=3mm
Is wd40 the right choice?
wd stands for water displacement. it was never designed to be a lubricant, only a sealant against moisture penetration.
Anyone know if there is there a specific lube recommended for the bearings?
wd stands for water displacement. it was never designed to be a lubricant, only a sealant against moisture penetration.
Anyone know if there is there a specific lube recommended for the bearings?
Thanks for all the replies and good ideas.
Does anyone have suggestions on getting the bearings out? I have tried pushing and tapping on the shaft to drive it out the back of the housing but it does not want to move. I am somewhat hesitant to hit it too hard as I do not want to damage the shaft or the plastic housing.
Does anyone have suggestions on getting the bearings out? I have tried pushing and tapping on the shaft to drive it out the back of the housing but it does not want to move. I am somewhat hesitant to hit it too hard as I do not want to damage the shaft or the plastic housing.
I had a similar problem last year and the fix was easy.
I sprayed with sailcoat, a Teflon spray lub, after climbing the mast. I soaked it thoroughly to flush out dirt and the dry Teflon was left on the bearings. It has been spinning just fine this past year.
Allan
I sprayed with sailcoat, a Teflon spray lub, after climbing the mast. I soaked it thoroughly to flush out dirt and the dry Teflon was left on the bearings. It has been spinning just fine this past year.
Allan
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