Bearing device and exhaust turbine turbocharger

A bearing device comprising:

• a rotating shaft;
• a thrust bearing which is provided on the rotating shaft and regulates an axial movement of the rotating shaft;
• and
• an oil storage portion which includes an oil storage space which is adjacent to the thrust bearing in an axial direction to be formed in an arc shape to surround the rotating shaft and is formed to have an opened lower portion and into which lubricating oil flows, the oil storage portion having a first inclined surface which is formed to be inclined in a rotation direction of the rotating shaft while protruding toward the thrust bearing side in a region below a horizontal plane passing through a center of the rotating shaft in the oil storage space,
• wherein a notch is formed in a lower portion of the thrust bearing and an opening end is formed on a forward side in a flow direction of the lubricating oil of the notch,
• the opening end coincides with a most protruding terminal end of the first inclined surface, and
• a second inclined surface formed on the opening end of the thrust bearing and the first inclined surface of the oil storage portion form a continuous surface.