| 摘要 |
PROBLEM TO BE SOLVED: To provide a pin to improve the durability of a cam useful to the injector and the valve train of an internal combustion engine and provide an increased life therefor and be used for a cam follower roller and have low friction and wear resistance. SOLUTION: A drive train 10 for an internal combustion engine is a drive train for an internal combustion engine provided with a cam follower roller mounted on a roller pin and arranged in a manner to drive a cam making contact with an engine camshaft. The roller pin is manufactured from a copper based alloy selected to improve durability of a cam and provide an increased life for the cam. The alloy is provided with low friction, high wear resistance, abrasion resistance, corrosion resistance high enough to prevent integrated chemical corrosion of a pin surface due to an oil-mixed substance, capacity sufficient to embed rigid debris and the oil-mixed substance without the occurrence of damage, and fatigue resistance high enough to support a mechanical load exerted on a cam roller.
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