Deflection Due to Contact between Gear Teeth with Finite Width

Abstract

In this paper, the experimental studies for the basic problem of the contact between gear teeth are presented. When a concentrated load acts on an infinite elastic solid, Sneddon's solutions are applied to the contact between gear teeth on the hypothesis that the effect of gear profile can be neglected in discussing local deformation on "line of contact". Correct functions are suggested. These correct functions contain the effect for the deformations with the distance from the free edge to the posiitons where a concentrated load acts on and where deformations are measured. There were applied to the contact between a finite width roller and a same width flat surface. The deflections and the load distribution were evaluated to make use of Sneddon's equation and the correct functions. The evaluatd results with these equations coincided with experimental results. And it becomes clear that the width of a gear tooth should be taken into consideration on the deflection when the width is narrow.