I made a big batch of them in the early 70’s and sold about half to Tom Ward. About 7 years ago, I sold the rest to the Spares Scheme, so Graham Moag should have them and should have the balls to go with them and know the size, as it is so long ago that I forget. I remember going to some trouble to acheive a track form that had a little clearence at the bottom so that the contact was more at the sides, since the bearing needs to equate to the action of a taper roller bearing, which, of course, was much better, but Scott’s found it too expensive and went back to the ball race type. Roger
