Abstract: A rotary thrust bearing assembly wherein, in lieu of a conventional bearing race and ball bearing assembly, a first embodiment of the bearing assembly of the present invention comprises a pair of bearing housings which are fabricated from dissimilar plastic materials such that the bearing housings are adapted to undergo limited pivotal or rotational movement with respect to each other along rotary planar surfaces. In accordance with a second embodiment of the bearing assembly of the present invention, the pair of plastic bearing housings are fabricated from similar plastic materials while an insert, fabricated from a plastic material dissimilar from the plastic material comprising the pair of plastic bearing housings, is interposed between the pair of plastic bearing housings. In this manner, the pair of plastic bearing housings are rotatable with respect to each other along two parallel rotary planar surfaces.