| 摘要 |
This radial foil bearing (3, 40, 50) is provided with: a top foil (9) arranged in opposition to a rotary shaft (1); a middle foil (10, 41) arranged to the outside in the diametrical direction from the top foil (9); a back foil (11) arranged to the outside in the diametrical direction from the middle foil (10, 41); and a bearing housing (12, 42, 51) of cylindrical shape houses the top foil (9), the middle foil (10, 41), and the back foil (11). Mutually opposed engaging slot portions (31, 35) are respectively formed at both side surfaces of the bearing housing (12, 42, 51). The middle foil (10, 41) has a plurality of middle foil tabs (10a, 41a) arranged along the circumferential direction of the bearing housing (12, 42, 51). Engaging projecting tabs (10b, 41b) for engaging the engaging slot portions (31, 35) are formed on the respective middle foil tabs (10a, 41a). |
