| 摘要 |
PROBLEM TO BE SOLVED: To provide a slide bearing capable of combining suppression of generation of cracking and increase of the amount of lubricant supplied to an oil passage of a shaft member.SOLUTION: A slide bearing includes an upper bearing supporting a rotatable crank journal having a communication oil passage, at an inner peripheral face thereof, and a lower bearing 20 butted to the upper bearing and supporting the crank journal at an inner peripheral face 20a thereof. An oil groove extending in a rotating direction of the crank journal to supply a lubricant to a communication oil passage of the crank journal, is formed on the inner peripheral face of the upper bearing, an oil groove 25 extending in the rotating direction to supply the lubricant to the communication oil passage of the crank journal is formed on the inner peripheral face 20a of the lower bearing 20, and at least a part of groove width of the oil groove 25 is narrower than the oil groove of the upper bearing.SELECTED DRAWING: Figure 5 |
