Job creation has been a popular platform for politicians for as long as I can remember. What seems to be lacking is any sort of “after action repor...

[starbox] We are starting our second year of this blog and are pleased that it was named one of the Top 50 Design and Development Blogs on the Int...

[starbox] Lest you come away from my last posting thinking I am completely trapped in the past, I’ve invested a fair amount in new software during ...

It may not be widely recognized that most of the inspection data supplied by inspection equipment, following the practices of AGMA Standard 2015 and similar standards, are not of elemental accuracy deviations but of some form of composite deviations. This paper demonstrates the validity of this “composite” label by first defining the nature of a true elemental deviation and then, by referring to earlier literature, demonstrating how the common inspection practices for involute, lead (on helical gears), pitch, and, in some cases, total accumulated pitch, constitute composite measurements.

VDI has created a data exchange format that allows for the electronic exchange of all geometric parameters for cylindrical gears.

When it comes to setting the standard for gear making, the auto industry often sets the pace. Thus when automakers went to grinding after hardening to assure precision, so did the machine shops that specialize in gearing. But in custom manufacturing of gears in small piece counts, post-heat treat grinding can grind away profits too.