| 摘要 |
PROBLEM TO BE SOLVED: To prevent occurrence of seizure due to strong contact of a circulator with a lubricant storage groove.SOLUTION: A self-lubrication type bearing device includes a rotary main shaft 3, a thrust collar 4 disposed integrally with the rotary main shaft 3 and projecting to a radial outer side of the rotary main shaft 3, a journal bearing 6 supporting an outer peripheral face of the rotary main shaft 3, a circulator 9 disposed in a state of surrounding the thrust collar 4 from an outer peripheral side, and a bearing box 2 accommodating a lubricant in which a part of the circulator 9 is immersed so that the circulator 9 absorbs the lubricant, and an opposite face 22 opposed in the axial direction of the rotary main shaft 3, to the circulator 9 of the bearing box 2, is relatively movable in the axial direction. |
