| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing device for supporting a crank shaft of an internal combustion engine which is excellent in foreign matter discharging performance, and in which an influence of foreign matter is reduced with respect to a resin-made sliding layer forming an inner circumferential surface of a sliding bearing having the resin-made sliding layer. <P>SOLUTION: At least a sliding bearing 30A for a journal part has on its inner circumferential surface the resin-made sliding layer, an oil groove 36 is formed which extends circumferentially on an inner circumferential surface of at least one semicylindrically-shaped bearing 30A of a pair of semicylindrically-shaped bearings constituting the bearing for the journal part, and the resin-made sliding layer is formed on inner surface of the oil groove. The oil groove 36 includes a center part of circumferential length of the semicylindrically-shaped bearing 30A, and groove bottom surface thereof is formed as an uneven surface without a flat part, composed of a plurality peaks 36A and a plurality of troughs 36B which are undulating continuously. <P>COPYRIGHT: (C)2013,JPO&INPIT |
