Lubricant-containing polymer-filled rolling bearing and process for the production thereof

A process for the production of a lubricant-containing polymer-filled rolling bearing comprising an inner race, an outer race, a plurality of rolling elements provided interposed between said inner race and said outer race, a cage protruding outwardly from the end face of either said inner race or said outer race and retaining said rolling elements, and a lubricant-containing polymer packed in the space formed by said inner race, said outer race, said rolling elements and said cage, which comprises steps of:

• assembling a rolling bearing;
• applying a release agent or grease to the outer peripheral surface of said inner race, the inner peripheral surface of said outer race, the surface of said rolling elements and the surface of said cage;
• placing said rolling bearing to which a release agent or grease has been applied between a lower fixture arranged such that it comes in contact with the wider end face of said inner race but does not come in contact with the narrower end face of said outer race and said cage and an upper fixture arranged such that it comes in contact with the wider end face of said outer race but does not come in contact with the narrower end face of said inner race and said cage;
• and
• solidifying said lubricant-containing polymer in the space formed by said inner race, said outer race, said rolling elements and said cage.