<p>A gas bearing spindle stably operated even when a rotating shaft is rotating at high speed. The gas bearing spindle (1) comprises the rotating shaft (10) and a bearing sleeve (30). The bearing sleeve (30) is so disposed as to be opposed to at least a part of the side surface of the rotating shaft (10). The bearing sleeve (30) contains the mixture of carbon and a material different in coefficient of linear expansion from the carbon.</p>
