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Hello all, I came across an "eccentric" gear drive used in a window lift gear-motor. Shortly thereafter I started work on a project that seemed to be a perfect match for the characteristics of this gear type. The problem is I can't find any hard information. I found a short paper called...

Thanks for all the help guys. I am familiar with the use of the modified addendum for increasing tooth strength, or changing the center distance; but I forgot that the base circle would not be affected by this. Thanks again.

This question is probably mostly theoretical in nature but I couldn't find anyone that could give me a satisfactory answer. I work for a company that makes gearboxes and we routinely use gears with modified addendums. My question is how does this effect the gear ratio. I know the off the shelf...

engrenage, I too have been working on a German right angle gearbox and had similar questions. I was never able to get satisfactory answers, but in our application the main purpose seemed to be to provide the ability for the gearbox to be backdrivable. The angles and contact ration are very...

First off, thanks for all the information I appreciate it greatly. As far as some of the other mfg methods, we currently use a spirol pin through the worm and shaft, which works well under lighter loads. The key approach as Greg mentioned does not work well for transmitting torque. Especially...

I am currently working a new project that will require a shrink fit to be used in two places. Unfortunately I do not have any experience in using these. We are pressing a steel (S45C) worm on to a steel shaft (dont have material picked). The worm OD is .650 nominal and the shaft OD is .3150...