June 2009

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Feature Articles

High-Tech Risks and Rewards
Aerospace/Defense contracts offer unique challenges for gear manufacturers.

Aerospace Gearing Research - An Update
A look at several American organizations doing cutting edge gear-related research for aerospace applications.

Technical Articles

Innovative Concepts for Grinding Wind Power Energy Gears
This article shows the newest developments to reduce overall cycle time in grinding wind power gears, including the use of both profile grinding and threaded wheel grinding.

The Effect of Start-Up Load Conditions on Gearbox Performance and Life Failure Analysis, With Supporting Case Study
If a gear system is run continuously for long periods of time—or if the starting loads are very low and within the normal operating spectrum—the effect of the start-up conditions may often be insignificant in the determination of the life of the gear system. Conversely, if the starting load is significantly higher than any of the normal operating conditions, and the gear system is started and stopped frequently, the start-up load may, depending on its magnitude and frequency, actually be the overriding, limiting design condition.


Paying the Tab (Publishers Page)
The U.S. economy has been out of kilter for some time. But Uncle Sam isn't going to bail you out. You're going to have to do it yourself.

Product News (Product News)
The complete product news section from the June 2009 issue of Gear Technology.

Events (Events)
PowderMet 2009, plus the full technical calendar for Gear Technology's June 2009 issue.

Industry News (Industry News)
The complete industry news section from the June 2009 issue of Gear Technology.

Loopy Logo or Symbolically Superior (Addendum)
Have you seen the newly created logo symbolozing the scope of President Obama's $787 billion American Recovery and Reinvestment Act?