(under subclass 273) Hinge wherein the surface friction between the two opposing surfaces is reduced by interposing a plurality of rolling elements between the surfaces, whereby rolling rather than sliding contact occurs.
(1) Note. A rolling cam follower is not considered to be a bearing as defined above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
224, for a ball and socket hinge.
313+, for a gravitating hinge having roller which rides along a camming surface as the hinged members* swing relative to one another.