An Analysis of Manufacturing Precision of Involute Worms Using a Kinematical Model

Abstract The manufacturing precision of involute worms constitutes a major requirement. On the one hand, worm input element drive; secondly, helical surface is basic an worm-hob. This paper presents analytic comparison between surfaces obtained using theoretical equations, kinematic simulation cutting and charged with errors. error considered distance along normal direction to surface, measured this simulated main sources errors are center-error edge plane, profile deviation axial feed from axis worm. results allow us conclude that influence largest. It followed by parallelism worm, finally, center tool edge.