| 摘要 |
<p>The shaft apparatus (11) comprising a shaft (12), blocks (16) fitted to an outer surface of the shaft in an axial direction at predetermined intervals, and a roller bearing (30). The roller bearing (30) includes an inner ring (32) fitted and fixed to the outer surface of the shaft (12), an outer ring (35), and a plurality of rollers (40) interposed between the inner and outer rings to roll. First (50) and second (51) control rings for controlling the movement of the outer ring (35) in the axial direction of the shaft (12) are disposed between the shaft (12) and the outer ring (35).</p> |
