A spacer type solid lubricating bearing disposing a spacer comprising a solid lubricating material, for example, graphite between each of rolling elements is proposed. A solid lubricating rolling bearing is provided with an inner ring, an outer ring, rolling elements, spacers of a material containing...http://www.google.de/patents/US6471408?utm_source=gb-gplus-sharePatent US6471408 - Solid lubricating rolling bearing
