Patent ID: 8317401

Claim:
A slide bearing for supporting a rotary shaft, the slide bearing comprising a semicircular main bearing body and a semicircular sub-bearing body, which can be split from each other, the main bearing body including a first oil passage for introducing lubricant from the outside to a gap between the slide bearing and the rotary shaft, and a second oil passage for permitting the lubricant introduced between the slide bearing and the rotary shaft to flow in the circumferential direction of the slide bearing, wherein the first oil passage includes an inner circumference opening, which is open to the inner circumference of the main bearing body, wherein a first auxiliary oil passage for discharging the lubricant in the second oil passage to the outside from the axial direction of the slide bearing is provided in at least one of the sub-bearing body and a region on a leading side of the inner circumference opening of the main bearing body in the rotational direction of the rotary shaft, and wherein the second oil passage continuously extends toward the leading side in the rotation direction of the rotary shaft from the inner circumference opening to the first auxiliary oil passage, wherein a second auxiliary oil passage for discharging the lubricant in between the rotary shaft and a region on a trailing side of the inner circumference opening in the rotational direction of the rotary shaft to the outside from the axial direction of the slide bearing is formed on an inner circumference surface of the main bearing body, and wherein the main body includes a non-undercut portion in which no oil passage is formed in between the inner circumference opening and the second auxiliary oil passage, wherein the non-undercut portion extends from a trailing end portion of the second oil passage or a trailing end portion of the inner circumference opening in the rotational direction of the rotary shaft to the second auxiliary oil passage.