| 摘要 |
<p>A combination of a shim and a cam used for, especially, a part of a reciprocating mechanical mechanism exposed to severe sliding conditions, not only capable of obtaining excellent sliding characteristics by reducing frictional work during a sliding operation of the part but also having a high abrasion resistance and high fatigue characteristics. A combination of a shim and a cam, wherein a surface roughness of a sliding surface of the shim with respect to the cam is 0.08 to 0.4 νm in terms of ten-point average surface roughness (Rz), a surface hardness of a shim sliding portion being high as compared with that of the cam, the cam comprising a cam having a plurality of cam edges.</p> |
