HALF-SPLIT BEARING AND SLIDE BEARING

To provide a half-split bearing that constitutes a slide bearing for a shaft member of an internal combustion engine, in which a sliding surface is unlikely to cause seizure even when the shaft member is flexed or whirled during operation of the internal combustion engine.SOLUTION: A half bearing constitutes a sliding bearing. A plurality of circumferential grooves are formed adjacent to each other on a sliding surface. The sliding surface has a flat part parallel to an axial direction, and an inclined surface part adjacent to the flat part. The inclined surface part is displaced from the flat part toward the end part in the axial direction of the sliding surface so that the sliding surface continuously approaches a rear surface. A position of the maximum groove depth of the circumferential groove is located above a groove center line. The groove center line in the inclined surface part of the sliding surface is inclined with respect to a vertical line toward the end part in the axial direction of the sliding surface. A groove inclination angle of the circumferential groove closest to the flat part is the smallest, and the groove inclination angle continuously increases toward the end part of the sliding surface in the axial direction.SELECTED DRAWING: Figure 6A 【課題】内燃機関の運転時に軸部材の撓みや振れ回りが発生しても摺動面に焼付が発生し難い内燃機関の軸部材用のすべり軸受を構成する半割軸受を提供すること。【解決手段】すべり軸受を構成する半割軸受であって、摺動面には、複数の周方向溝が隣り合って形成されており、摺動面は、軸線方向に平行な平面部と、平面部に隣接する傾斜面部とを有しており、傾斜面部は、平面部から摺動面の軸線方向の端部に向けて、摺動面が連続して背面に近付くように変位しており、周方向溝の最大溝深さの位置は、溝中心線の上に位置しており、摺動面の傾斜面部における溝中心線は、摺動面の軸線方向の端部に向けて垂線に対して傾斜しており、平面部に最も近い周方向溝の溝傾斜角度が最小になっており、摺動面の軸線方向の端部に近付くほど、溝傾斜角度が連続して大きくなるようになっている。【選択図】図６Ａ