This paper studies the effect of machining parameters on the performance of worm gears using a special purpose finite
element technique. Algorithms are presented to determine the worm and gear geometries by simulating the grinding
action of the grinding wheel and the cutting action of the hob. Results are presented delineating the effect of machining
parameter such as the hob oversize, hob swivel angle, profle modification etc., on performance parameters such as the
size and location of contact zone on the gear tooth, contact stesses, root stresses, load distribution and transmission error.
Results are also presented on the effect of load on transmission eror of worm gears.
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