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1 Aerospace Gearing Research - An Update (June 2009)

A look at several American organizations doing cutting edge gear-related research for aerospace applications.

2 Hybrid Gear Preliminary Results: Application of Composites to Dynamic Mechanical Components (May 2013)

Composite spur gears were designed, fabricated and tested at NASA Glenn Research Center. The composite web was bonded only to the inner and outer hexagonal features that were machined from an initially all-metallic aerospace quality spur gear. The hybrid gear was tested against an all-steel gear and against a mating hybrid gear. Initial results indicate that this type of hybrid design may have a dramatic effect on drive system weight without sacrificing strength.

3 Chiming in on Gear Noise: Three Experts Have their Say (August 2011)

It is said that “The squeaky wheel gets the grease.” Ok, but what about gear noise? We talked to three experts with considerable knowledge and experience in this area.

4 Hoechst Technical Polymers to Gather Plastic Gear Materials Data (July/August 1997)

Hoechst Technical Polymers has expanded its interests in plastic gears with the introduction of the new Plastic Gear Evaluation and Research machine P-Gear. The machine is the centerpiece of the company's continuing efforts to promote and develop the use of plastic gears in higher-powered applications.

5 M & M Precision, Penn State & NIST Team Up For Gear Metrology Research (July/August 1997)

In 1993, M & M Precision Systems was awarded a three-year, partial grant from the Advanced Technology Program of the Department of Commerce's National Institute of Standards and Technology (NIST). Working with Pennsylvania State University, M&M embarked on a technology development project to advance gear measurement capabilities to levels of accuracy never before achieved.

6 The 332 Report - Competitive Position of the U.S. Gear Industry (September/October 1990)

In March 1989, the U.S. Trade Representative requested the U.S. International Trade Commission to conduct an investigation and prepare a report on the competitive position of the U.S. gear industry in U.S. and global markets.

7 Gear Research Institute (May 2013)

The essence of designing gears is often by necessity risk-averse, given that many of them are used in applications where loss of life is a distinct possibility. The Gear Research Institute (GRI) at The Pennsylvania State University conducts risk reduction testing with the same goal in mind - whether it be gears in fighter jets, Ferris wheels, tanks, or countless other gear-reliant vehicles and machinery.

8 Worm Gears - Ask the Expert (October 2013)

How does one determine the center of a worm and a worm wheel? Also, what are the differences between the common worm tooth forms?

9 Center Distance Variations for Internal Gears (October 2012)

While external involute gears are very tolerant of center distance variations, what are the center distance constraints for internal gears?

10 Nonstandard Tooth Proportions (June 2007)

With the right selection of nonstandard center distance and tool shifting, it may be possible to use standard tools to improve the gear set capacity with a considerable reduction in cost when compared to the use of special tools.

11 Drivetrain Research An Idea Whose Time is Overdue (July/August 1995)

The popular perception today is that technological advancement is an engine running almost out of control. New products and processes are developing faster than we can keep up with them, as anyone who has had a new computer system crash into obsolescence practically before it's out of the box can tell you. But that's not the case everywhere. Transmission technology, for example.

12 The OSU Gear and Power Transmission Research Laboratory: Where Innovation Thrives (March/April 2013)

When, in 1980, OSU professor Donald R. Houser created the Gear and Power Transmission Research Laboratory - then known as the Gear Dynamics and Gear and Power Transmission Laboratory (GearLab) - he did so with the seed money provided by just three companies. Thirty-three years out, the lab has continued to grow, impress and—most importantly - succeed; it now boasts a roster of some 50 sponsoring companies and government agencies.

13 The 332 Report (September/October 1990)

In May of this year the U.S. International Trade Commission made public its Report to the President on the condition of the U.S. gear industry. This 200+ page document is the result of a two-year study by the commission, with the help of the AGMA staff and members. It is the most comprehensive and current analytical coverage of the industry conditions and tends presently available. Because of the importance of this report to the industry, GEAR TECHNOLOGY is devoting a good portion of this issue to reprinting the Executive Summary for our readers.

14 Advances from Aachen - WZL and GRC Contribute to Gear Manufacturing (July/August 2005)

Aachen has long been the center of European gear research.

15 Steadfast and Streamlined: Can Lean Soften the Economic Blow (August 2009)

Two high-volume gear production cells grace the shop floor at Delta Research Corporation in Livonia, Michigan. Thanks to lean manufacturing, these cells have never shipped a defective part to a customer since they were developed over three years ago.

16 High-Tech Risks and Rewards (June 2009)

Aerospace/Defense contracts offer unique challenges for gear manufacturers.

17 Developing Flexible Couplings Standards (May 2011)

AGMA Flexible Couplings committee chairman Glenn C. Pokrandt gives an update about standards and other documents under development.

18 High Precision, High Stakes (September/October 2010)

Delta Research bets big on the future of gear-making technology.

19 State of the Gear Industry 2010 (November/December 2010)

Results of Gear Technology research on trends in employment, outsourcing, machine tool investment and other gear industry business practices.

20 An Invitation To Be A Champion (November/December 1988)

Recent history has taught us that global competition has become tougher and is a major concern of American gear manufacturers from abroad have invaded American markets with products designed in an environment where management of technology has been practiced effectively. If American companies intend to compete in the changing world market, they must acquire the technologies that will allow them to do so.

21 Balance is Critical - Monitoring Essential (November/December 1986)

These are changing times for industry. Trauma and uncertainty are always a part of change, and change is not always for the better. Change is usually forced, most frequently by competition. Our competitive free enterprise system should be able to respond to competition because that's its basis. These are critical years. If we do not respond effectively to change and competition, it could be disasterous.

22 Gear Research, The State of the Art (January/February 1985)

Gear research seems to be thriving. Between September 10th and October 17th, 120 papers about gears were presented at three conferences in Milwaukee, Boston, and Washington, to a total audience of about 400. The authors were from nine countries. Slightly more than half of the papers were prepared by authors who live outside the US and Canada.

23 INFAC Reports on Recent Hobbing and Heat Treating Experiments (July/August 1995)

Chicago- Results of recent studies on residual stress in gear hobbing, hobbing without lubricants and heat treating were reported by representatives of INFAC (Instrumented Factory for Gears) at an industry briefing in March of this year.