Abstract
This paper presents a study on the bending fatigue strength and surface durability of high strength sintered metal gears. Bending fatigue tests and running tests for newly developed carburized Fe-Ni-Mo and Fe-Ni-Cr-Mo sintered metal gears were carried out and the bending fatigue strengths and surface durabilities of these gears were determined. The results were compared with those of conventional high density sintered metal gears and carburized wrought steel gears. The experimental results show that the load bearing capacity of newly developed sintered metal gear with surface-densification is comparable to that of a carburized wrought steel gear.
