How do you replace things you can't manufacture? Copper wire, varnish, bearings, brushes, belts, gears, bolts, screws, etc. With careful thought and stockpiling most likely needed spare parts, then the chances are improved. I suspect civilization to brake up into small group type survival units and reach a low point at about 4-5 years after pole shift on the average. Scrounging and consumption being the main thrust during this time, then after this time things turnaround and growth cooperation, building begins to flourish. Slowly at first then growing more rapidly. But, only after a long dark time. A pole shift dark ages so to speak. I hope and plan, there will be exceptions by the well prepared, but now I am talking about the average populous.
Ball bearings could be cleaned and re-greased until they fall apart then replaced with spare parts until that runs out, then one would make bushings out of nylon, bronze, brass, or copper. Depending on what one had. Use as much as possible common easily purchasable items. This allows the solution to reach deeper into society and gives a better ability to scrounge for parts. I see availability of lubricants and ball bearings being a continuing challenge for any approach we take.
Offered by Mike.