Machine element part with ic tag

[0056] A first preferred embodiment of the present invention will be described in detail with particular reference to FIGS. 1A to 3. The IC tag-equipped machine component shown therein is in the form of a rolling bearing assembly 1, which forms a machine component, having a plurality of IC tags 2 attached thereto. The rolling bearing assembly 1 is of a type including a row of rolling elements 6 retained by a roller retainer 5 and interposed between an inner race 3 and an outer race 4. No sealing member is employed and the roller retainer 5 is exposed to the outside through opposite annular open ends of the rolling bearing assembly 1. Although the rolling bearing assembly 1 may be a cylindrical roller bearing, a tapered roller bearing, a deep groove ball bearing or an angular contact ball bearing, the cylindrical roller bearing is employed in the illustrated embodiment as an example of the rolling bearing assembly 1. Also, although the inner race 3 is shown as a collarless type and the