[Al Skierkiewicz]

In general teams have found that the thrust loads and gear alignment during run and direction change are formidable problems to overcome. In products that use them, the case/enclosure is substantial in order to hold everything in alignment. I just had part of one open a few minutes ago from our satellite dish azimuth drive. The right angle worm reduction weighs almost as much as the 3/4 hp motor and is fully lubed. All it is used for is to couple to a lead screw that is driving the dish.