Combination of shim and cam
AssigneeSumitomo Electric Industries, Ltd.
InventorsTakao Nishioka, Yasushi Mochida
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Abstract
An object of this invention is to provide a combination of a shim and a cam for use in a reciprocating mechanical system operated under a severe sliding condition, the combination not only assuring an excellent sliding characteristic by reducing friction work during sliding but also providing a high wear resistance and a high fatigue characteristic. In this combination of the shim and cam, the surface roughness of the sliding surface between the shim surface and cam is 0.08-0.4 μm in terms of ten-point average surface roughness Rz and the surface hardness of the shim sliding portion is higher than that of the cam and the cam has a plurality of cam mountains.
Claims9
A combination of a shim and a cam for use in a reciprocating mechanical system wherein the surface roughness of a first sliding surface of a shim sliding relative to a cam is 0.07-0.4 μm in terms of ten-point average surface roughness Rz, the surface hardness of said surface is higher than the surface hardness of the cam and said cam has a plurality of cam mountains.
Dependencies are inferred from the claim text.