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Old 10-31-2011 | 05:01 AM
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Sport_Pilot
 
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From: Acworth, GA
Default RE: OS 46/55 bearings bad again!
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<font face="Trebuchet MS">So if the aluminum alloy has copper as one of alloying metals then that could be the problem.</font>
High copper content aluminum castings are heavier and more expensive than normal castings. No one uses them for model engines. Besides it would rust where it is touching the casting, not on the race. To use a steel anode one uses a non anode wire and placed some distance from the copper. This only works under water or under ground where the ground is wet or moist.</font>
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