Patent ID: 8596871

Claim:
A slide bearing for a crankshaft of an internal combustion engine, comprising a pair of half bearings which are combined with each other to form the slide bearing; and a crush relief formed in each end portion region in a circumferential direction of an inner peripheral surface of each of the half bearings by reducing a bearing wall thickness over an entire width in an axial direction of the half bearing, wherein a relief depth (RD) which is a reduction amount of the bearing wall thickness of the crush relief is at a maximum at each end portion in the circumferential direction of the half bearing, and progressively and continuously decreases toward a center in the circumferential direction of the half bearing, while the relief depth (RD) is at a maximum in a center in an axial direction of the half bearing, and progressively and continuously decreases toward both end portions in the axial direction of the half bearing; a relief length (RL) of the crush relief which is expressed as a height from a horizontal surface to an upper edge of the crush relief on the bearing inner peripheral surface measured when the half bearings is placed on the horizontal surface so that both end surfaces in the circumferential direction thereof become lower end surfaces which progressively decrease from a center toward both end portion in the axial direction.