Thanks jason for that info,will bear that in mind for the future ,have been chatting to the firm l use for bearings and for once a local firm ,now l can get over more of the bearing sizes by using imperial and then machine to fit ,so apart from a couple of bearings that will have to be bronze ,and yes jason will use SA660.It would be nice to get drawings with bits on the shelve ,but then it would be to simple,plus the drawings were free,but am plugging away,thanks for your time.
john