(under subclass 456) Subject matter comprising a plurality of radially spaced rolling elements in concentric relation.
(1) Note. "Concentric" means having the same point as the center of a circle or a sphere, but for this subclass it will suffice if the radially spaced rolling elements overlap axially.
SEE OR SEARCH THIS CLASS, SUBCLASS:
512, for plural axially spaced balls with an integral race and the balls on the same side of the race.
513+, for plural axially spaced balls on opposite sides of a race.
