I missed an important point in a product specification this week. Fortunately, my client caught it and I was able to submit another design in time ...

PTB's two microgear measurement standards and their analyses using seven measurement methods which are then presented, evaluated and compared with each other.

A reader asks: We are currently revising our gear standards and tolerances and a few questions with the new standard AGMA 2002-C16 have risen. Firstly, the way to calculate the tooth thickness tolerance seems to need a "manufacturing profile shift coefficient" that isn't specified in the standard; neither is another standard referred to for this coefficient. This tolerance on tooth thickness is needed later to calculate the span width as well as the pin diameter. Furthermore, there seems to be no tolerancing on the major and minor diameters of a gear.

Klingelnberg presents the technical aspects of its roughness measurement system.

The secret to meeting today's inspection demands is influenced by the technology and those in charge of operating it.

One of the reoccurring themes in our “origin stories” project is the willingness of people to school us in the sometimes confusing world of gears. ...

Jim Richard’s account of his journey from youthful experimenter to designer of cutting edge gear processing equipment illustrates the amazing thing...