| 摘要 |
PROBLEM TO BE SOLVED: To provide a half thrust bearing in which heat is hardly accumulated and baking hardly occurs.SOLUTION: A semi-annular half thrust bearing 8 receives axial force of a crank shaft of an internal combustion engine. The half thrust bearing 8 comprises: thrust reliefs 82, 82 that are adjacent to end surfaces of circumferential directional both sides on a slide surface 81 receiving axial force, and are inclinedly formed so that a wall thickness becomes thin toward the end surfaces; a plurality of relief grooves 83, ... that are formed at least on a surface of the thrust relief 82 on a rear side of a rotational direction of the crank shaft; an intermediate area 84 that is positioned between the thrust relief 82 and the slide surface 81; and intermediate grooves 85, ... that are formed so as to continue to the relief grooves 83, ... in the intermediate area 84, and are formed so that a cross sectional area is reduced to ward the slide surface 81. |
