I'm a little confused here. Are you saying that replacement cages are too small in diameter? If so, then just reuse the old cage and snap the new balls into it. Alternatively, dump the cage and just use loose balls. Stick them to the races with grease. If you use loose balls then you will probably use more than nine...just be sure to leave approximately the space of one ball...don't use too many balls by crowding them all together.