The gear designer needs to know how to determine an appropriate case depth for a gear application in order to guarantee the required load capacity.

Tom Lang of Kapp Technologies shares his views on the trends affecting ground gears.

The complete Product News from July/August 2005.

The complete Events section from May/June 2005.

Applying "Dynamic Block Contours" allows the designer to predict gear quality at the earliest stage of the design process.

Whew. IMTS is over, and I’m relieved, in more ways than one.

Companies around the world are learning to embrace the environment, and the gear industry is no exception. This special section takes a look at how some gear manufacturers are doing their part to conserve resources, preserve and protect the environment, and give back to the land. What we’ve found is that adopting environmental measures is far more than just good corporate citizenship. For many gear industry companies, good environmental practices also turn out to be good for the bottom line.

For a high-speed gearbox, an important part of power losses is due to the mesh. A global estimation is not possible and an analytical approach is necessary with evaluations of three different origins of power losses: friction in mesh contact, gear windage and pumping effect between teeth.

This article was originally published 20 years ago, in Gear Technology’s first issue. It describes a method of evaluating the smoothness, or lack of smoothness, of gear motion. This lack of smoothness of motion, known as “transmission error,” is responsible for excitation of gear noise and problems of gear accuracy and sometimes has a relationship to gear failure.