Consideration of features and the optimal form of rib of a small and high-strength spiral bevel gear fabricated using five-axis controlled machining center

Abstract

A small and high-strength spiral bevel gear fabricated using a five-axis controlled machining center has been developed. In this paper, we propose a novel spiral bevel gear with a rib at the end of the face width to reinforce the tooth bending strength, which is machined with a ball-nose end-mill tool. We investigated the influence of the rib shape and size on the maximum stress at the tooth and rib root fillet. The results revealed a novel guideline for designing the rib shape and size at the end of the teeth width for the small and high-strength spiral bevel gear.