I have a scaled down version of a Congreve clock that I assembled from a kit that was produced by Devon Clocks of Exmouth about 25 years ago. I am looking for a ball-bearing race that fits at the pivot of the tray. The inside dia is 0.185" (4.73mm) the outside dia is 0.374" (9.5mm) and the width is 0.125" (3.14mm) (not crucial). I am find difficulty finding a race this size. Any help or advice would be much appreciated. Paul.