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Old 15-02-2013, 23:11   #1
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Galvanic corrosion - Bonding rudder bearing?

I've recently replaced the lower rudder shaft bearing on my boat. Inspecting the old bearing (installed 3 years old) there appears to be some galvanic corrosion evident.

The rudder bearing (JP3 type 4) has an aluminum housing. The rudder shaft is stainless steel, fitted with a carbon sleeve separating the stainless shaft and the aluminum bearing.

Any thought on connecting the bearing to the bonding system, as a way to protect the bearing from galvanic corrosion?
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Old 17-02-2013, 01:27   #2
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Join Date: Sep 2011
Location: Denmark
Boat: Amel Mango 52
Posts: 64
Re: Galvanic corrosion - Bonding rudder bearing?

Before you do anything, you might wanna consult this one from West Marine:

The West Advisor: Marine Grounding Systems

I hope the link works...

/ Bent
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corrosion, rudder

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