Crosshead bearing, crosshead, frame, crosshead internal combustion engine

摘要

In a crosshead bearing, a crosshead, a frame, and a crosshead internal combustion engine, damage caused by a bearing load is suppressed and a crosshead pin can be satisfactorily supported. A bearing body 71 having a semi-cylindrical shape, a bearing surface 72 provided on the inner surface of the bearing body 71, a communication hole (communication portion) 75 penetrating in the thickness direction of the bearing body 71, and a bearing body 71 are provided. The inner surface is provided with inclined grooves (inclined portions) 76 that increase in depth from both ends in the axial direction toward the center. [Selection] Figure 8