The new bearings
The old spindle will be cut about where the blue line is
The new will be using the bearings shown; this will give me room for the Nikken SK10 collets i have; I'll be inserting the aft part of the old shaft (splines) into the new one; and it will be pinned for the drive
The new bearings are 20mm bore the old had 12mm bores; plus these new ones have a 17000rpm rating
The roller will take all the side loads while cutting; should be a neat conversion of a Delta drill press into a nice mill
The original whilst it has done sterling service is going to be used for some very special stuff; i need high accuracy and ridgidity for this new item
I'll post more as this progresses