A Study of the Gear Cutting Method of Spiral Bevel Gears with a Tapered Tooth Height : A Practical Method without Cutter Tilt

Abstract

Spiral bevel gears given both crowning and profile modification, mesh with each other at a point. Such gears can allow unavoidable errors during manufacture, but are non-conjugate gears in a strict sense. This paper is concerned with the gear cutting method of such gears resulting in a negligibly small non-conjugacy. In this method, the Gleason hypoid generator is used without any alteration. Gears with a tapered tooth height are cut without cutter tilt. A negligible small non-conjugacy is achieved with a slight modification of the cutter. The main procedure of this method is to determine THE MACHINE SETTING taking into account both the engagement of gears and the location of tooth bearings.