Abstract: A caster assembly for supporting an article comprising a housing, a ball bearing, and a bearing retaining member, wherein the housing has a bore extending completely through a central region thereof such that a first opening and a second opening are created on opposite faces of the housing, the first opening defining an annular inner shoulder with a reduced diameter, the ball bearing having a diameter slightly less than a diameter of the bore such that the ball bearing is adapted to rotate within the bore, the diameter of the annular inner shoulder at the first opening being less than the diameter of the ball bearing to allow partial emergence of the ball bearing from the first opening yet preventing the ball bearing from completely exiting the first opening, the bearing retaining member being affixed to the housing at the second opening to retain the ball bearing within the bore.