| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary equipment capable of restricting reduction in performance by installing a pull-out prevention mechanism including a thrust dynamic pressure generating groove.SOLUTION: A rotary equipment 100 of this invention comprises a shaft body including a shaft 26 extending along a rotating axis R and a bearing including a sleeve 44 enclosing the shaft 26. A clearance between the shaft and the bearing is formed with a bearing clearance allowing lubricant agent 52 to be held. Any one of the shaft and the bearing is provided with the first radial dynamic pressure generating groove 68 and the second radial dynamic pressure generating groove 70 while being axially spaced apart. Any one of the shaft and the bearing is axially provided with the second thrust dynamic pressure generating groove 78 at a position between the first radial dynamic pressure generating groove 68 and the second radial dynamic pressure generating groove 70.SELECTED DRAWING: Figure 2 |
