A bearing apparatus comprising a crankshaft of an internal combustion engine, a main bearing (19, 19', 19") for rotatably supporting a journal portion of the crankshaft, and a connecting rod bearing for rotatably supporting a connecting rod on a crankpin of the crankshaft, the crankshaft having a lubricating oil path formed therein so as to extend from the journal portion to the crankpin, an inlet opening of the lubricating oil path that is formed on an outer circumferential surface of the journal portion, and an outlet opening of the lubricating oil path that is formed on an outer circumferential surface of the crankpin, wherein the connecting rod bearing is composed of a pair of second semi-cylindrical bearings (21, 22), and each of the second semi-cylindrical bearings comprises a crush relief (62, 64, 72, 77) extending over the entire length in an axial direction in each circumferential end portion region of an inner circumferential surface thereof, each of circumferential end surfaces (21A, 22B) of each of the second semi-cylindrical bearings has an inclined surface extending over the entire length in the axial direction on an inner circumferential surface side, so that an axial groove (54A, 54B) is formed at each joint portion of the pair of second semi-cylindrical bearings, the crush relief is formed by decreasing a bearing wall thickness by a depth RD from the inner circumferential surface side, and the depth RD is maximum at the circumferential end portion of each of the second semi-cylindrical bearings, and gradually decreases toward a center in the circumferential direction to define an end portion of the crush relief on a center side in the circumferential direction on the inner circumferential surface, and a length RL of the crush relief that is defined as a height from a horizontal surface to the end portion of the crush relief on the center side in the circumferential direction when each of the second semi-cylindrical bearings is placed on the horizontal surface in such a manner that both circumferential end surfaces thereof become a lower end surface is 2 to 10 mm, and the depth RD is 0.01 to 0.12 mm at each of the circumferential end portions, the main bearing is composed of a pair of first semi-cylindrical bearings, (17, 17', 17", 18, 18', 18"), and only one of the first semi-cylindrical bearings comprises an oil groove (17a, 17'a, 17"a) formed on an inner circumferential surface thereof, the oil groove extends in a circumferential direction at least through a center portion in the circumferential direction of the one first semi-cylindrical bearing, and is disposed so that a center of the width of the oil groove in an axial direction is aligned with a center of the inlet opening of the journal portion, a circumferential end portion of the oil groove (17E, 17F) does not extend to a circumferential end surface (17A, 17B) of the one first semi-cylindrical bearing, and accordingly, the inner circumferential surface extends between the circumferential end portion of the oil groove and the circumferential end surface of the one first semi-cylindrical bearing to provide a separation inner circumferential surface, the circumferential end surface to which the oil groove of the one first semi-cylindrical bearing does not extend, and a circumferential end surface (18A, 18B) of the other first semi-cylindrical bearing that is joined thereto respectively have inclined surfaces (17C, 17D, 18C, 18D) extending over the entire length in the axial direction on inner circumferential surface sides thereof, so that an axial groove (24A, 24B) is formed at a joint portion of the pair of first semi-cylindrical bearings, and the separation inner circumferential surface extends between the axial groove and the oil groove, characterized in that a length L1 of the separation inner circumferential surface in the circumferential direction is set to be smaller than a length L2 of the inlet opening of the journal portion in the circumferential direction, so that the oil groove can communicate with the axial groove via the inlet opening of the lubricating oil path.