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The effects of having no grease in the bearings also cause significant resistance.... Especially when the moving bits weld themselves to each other.
So, what should we do? Perhaps a thinner synthetic grease? Make sure to use just the right amount of grease and no more? Use different bearings that require a different type of lubrication? (And what kind of lubrication? What resistances do they impose, and what lifespans and costs are associated with them?)
-soD
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