Originally Posted by
pierce
there's supposed to be a gap of at least 1 bearing on each race. don't pack too many in.
+1, Pedal makers actually know what they're doing.
Don't add a ball because the consequences of one too many are far worse than one too few. Also it's bad practice to add a ball, since balls are produced in lots, and the lot to lot tolerance is much looser than the tolerance within the batch. It's analogous to paint. All the paint within a single lot will match exactly, but if you but the same exact paint from another lot it won' match.