| 摘要 |
An object of the present invention is to improve not only the embeddability of plain bearings but the antiseizure properties of the same. In the present invention, a plain bearing comprises a coating layer 6 provided on the surface of a bearing alloy layer 2 that constitutes the base material. The coating layer 6 includes a composite region 5 where a resin region 3 and a soft metal region 4 are present together. The soft metal region 4 is a region made up mainly of a soft metal and may be softer than the resin region 3, and therefore has excellent embeddability. Since soft metal region 4 and resin region 3 are present together on the sliding surface of the coating layer 6, the embeddability can be improved, compared with plain bearings whose coating layer includes a resin region 3 alone; thus, the antiseizure properties can also be improved. The soft metal may be tin, lead, bismuth, indium, silver, copper or aluminium while the resin is preferably polyamideimide, polyimide, epoxy, phenol, polybenzoimidazole, polyphenylene sulphide, polyamide or polyether ether ketone. The resin may also contain a solid lubricant. |
