Going to take a bit of a diversion here and look at improving the stock Technics bearing, I know there are off the shelf superior bearings on offer but not everyone can afford them. These mods were done with basic tools, no milling or turning required. I started with a brand new bearing for these mods. The semi spherical tip of the spindle (top right) can be pitted from new but this one wasn't bad. I gave it a polish any way, as seen bottom right.