SLIDING BEARING OF INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To provide a sliding bearing for an internal combustion engine by which foreign matter is difficult to enter a bearing sliding surface area. SOLUTION: This cylindrical sliding bearing supports a crankshaft 20 of the internal combustion engine. The sliding bearing is composed of first and second semicylindrical bearings 24 and 28, and an oil groove 26 extending in the circumferential direction is formed on an inner peripheral surface of at least the first semicylindrical bearing 24. One tail end of the oil groove is positioned on one circumferential directional end surface 24A of the first semicylindrical bearing. The one circumferential directional end surface is an end surface of turning in the same direction as the rotational direction X of the crankshaft. The second semicylindrical bearing 28 has a foreign matter receiving groove 30. The foreign matter receiving groove is a recessed place formed along an outer peripheral surface of the second semicylindrical bearing from a circumferential directional end surface 28A abutting on the one circumferential directional end surface of the first semicylindrical bearing among the two circumferential directional end surfaces 24A and 28A of the second semicylindrical bearing. The oil groove 26 and the foreign matter receiving groove 30 are put in a communicating state by the circumferential directional end surfaces 24A and 28A allowed to abut on each other. COPYRIGHT: (C)2011,JPO&INPIT