Reducing Counterweight Noise

Chad A

Attaching and removing AP counterweights creates a loud screeching noise due to weights rubbing against the CW shaft.  Does anyone know of a way to reduce this noise?  I usually tear down in the middle of the night and have neighbors all around.

Maybe there's a lubricant that won't damage the shaft or weights and still allows the weights to be held securely in place?  I'm using the current SCWT weights for 1.875" shafts.

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