Hinge Assembly

A hinge joint, comprising:

• first and second hinge members, each comprising ends with a plurality of hollow links that form a cavity when the hollow links are joined;
• the cavity comprising opposing openings and each opening shaped to receive a ball bearing insert;
• the ball bearing insert comprises a first end connected to the first hinge member and a second end connected to the second hinge member;
• and
• the first and second ends are separated by a plurality of balls disposed within a track formed by the first and second ends.