BUSH FOR SMALL END OF CONNECTING ROD AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a bush for the small end of a connecting rod which is protected from corrosion and erosion caused a sulfur content included in gas oil or engine oil and exhibits its primary performance for a long time. SOLUTION: Bush 3 is closely fitted to the inner circumference surface of through hole 11 in small end 10 of the connecting rod into which piston pin 20 is inserted. In this case, the brush 3 has such a form 3 is that lining 31 is formed and is closely fitted to the inner surface of backing metal 30 formed cylindrically corresponding to the inner surface of the through-hole 11 and the lining 31 is made of a sintered compact of iron base alloy powder. The alloy preferably includes 15.0...25.0 wt.% molybdenum and further includes 1.0...5.0 wt.% surfur. The method for manufacturing such bush 3 is provided simultaneously.