Jobs

GEAR TALK WITH CHUCK | 2019-08-08

Polishing the Crystal Ball

Few people enjoy cost estimating and pricing exercises. I have blogged about this topic before but thought it was worthy of another look ...

GEAR TALK WITH CHUCK | 2019-07-25

Gear Origins: Reinventing the Family Business

Sometimes the old family recipe needs updating… My husband’...

GEAR TALK WITH CHUCK | 2019-07-16

Watching the Chips Fly

It was a real treat to spend a day at a gear shop this week. After all these years, I still enjoy watching a round blank get transformed into a gea...

GEAR TALK WITH CHUCK | 2019-06-06

History for a Worldwide Audience

Baby Boomers (as American kids born between 1946 and 1964 are called) learned a lot about World War II. From Pearl Harbor thru the atomic bomb drop...

GEAR TALK WITH CHUCK | 2019-05-21

My Origin Story: James Richards

James Richards’ entry int...

GEAR TALK WITH CHUCK | 2019-05-09

My Story – Bob Handschuh

Most of us only think of NASA with regard to the “S” [Space] in its acronym. The first “A” [Aerospace] is just as important to its mission of s...

GEAR TALK WITH CHUCK | 2019-05-07

Dave Hinz — My Story

Sometimes there is a “gear guy” lurking inside an ordinary engineer. Risking the embarrassment of a poor result on an unexpected “pop quiz” was...

GEAR TALK WITH CHUCK | 2019-04-11

Humble Beginnings

Ed Kaske’s origin story illustrates that it does not matter how you get into the gear t...

GEAR TALK WITH CHUCK | 2019-03-28

What Does Dudley Say?

Another giant of the gear industry — Darle W. Dudley (1917-2003) — is still influencing new engineers today through his writings. The very first ge...

GEAR TALK WITH CHUCK | 2019-03-07

Coaching Trees

March Madness is upon us once again, that wonderful tim...

GEAR TALK WITH CHUCK | 2019-02-26

Old Soldiers

Almost every week, it seems, we read of the passing of ...

GEAR TALK WITH CHUCK | 2019-02-07

Seeing Through the Spin

Two different high-profile news stories have really flipped my “curmudgeon” switch this week. It irritates me that the general public is distracted...

GEAR TALK WITH CHUCK | 2019-01-18

Lessons Learned the Hard Way

Chris’ account of p...

GEAR TALK WITH CHUCK | 2019-01-18

Getting into the Gear Trade: Chris Trochelman

Here is the first of our guest blogs on the topic of how you entered the gear trade. Chris Trochelman (pictured above, fa...

GEAR TALK WITH CHUCK | 2019-01-08

Luck of the Draw

Forty-eight years ago, I was fini...

GEAR TALK WITH CHUCK | 2018-12-18

Why Would I Want to Work for You?

Why are some jobs more attractive than others? Why are some organizations able to succeed with “players” cut from other companies? Why are some pla...

GEAR TALK WITH CHUCK | 2018-10-30

New Things in an Old Box

To conclude our loo...

GEAR TALK WITH CHUCK | 2018-10-09

Where to Next?

We have devoted this year to going over fundamentals of gear and gearbox design and manufacture. Before we move on to other topics, I would like to...

GEAR TALK WITH CHUCK | 2018-09-20

Frequently Asked Questions

Backlash “adju...

GEAR TALK WITH CHUCK | 2018-09-04

Gearbox Design: Let the Fun Begin

It is perfectl...

GEAR TALK WITH CHUCK | 2018-08-02

Gearbox Specs: Connecting to the System

Your specifica...

GEAR TALK WITH CHUCK | 2018-03-22

Worm Basics - Part 2

Continuing our discussion of the “least you need to know” about worm gearing: 5. Efficiency is highly variable for worms. If it is critical to y...

GEAR TALK WITH CHUCK | 2017-10-22

Automation, Regulations and Job Creation

Robots, self driving cars, and artificial intelligence are popular topics in business publications. Depending upon the writer’s perspective, they a...

GEAR TALK WITH CHUCK | 2017-10-05

How Much Education is Enough?

My last posting may have left you thinking I was anti-intellectual. Far from it; my point is that education is fundamentally different than trainin...

GEAR TALK WITH CHUCK | 2017-10-03

Education vs. Training

Buried deep within the never ending debate on job growth is a fundamental misunderstanding on the difference between education and training. I am a...

GEAR TALK WITH CHUCK | 2017-09-28

Is There a Future in Gears?

I have several vivid memories of my first week as an apprentice back in 1971. One was the shock of getting a printout from Human Resources in my fi...

GEAR TALK WITH CHUCK | 2017-07-28

A New Quoting Model?

Anyone actually enjoy quoting? For such an important part of daily business the process of establishing prices to offer a customer seems universall...

GEAR TALK WITH CHUCK | 2017-07-20

Authority and Responsibility

We all got a lesson in leadership from that unfortunate collision between a U.S. Navy destroyer and a container ship off the coast of Japan. The Na...

GEAR TALK WITH CHUCK | 2017-06-09

A Lesson Learned and Acted On

I have been getting lots of windshield time this year between business travel, house hunting, relocation, and even a few days of vacation. Our fabu...

GEAR TALK WITH CHUCK | 2017-05-18

Summer Jobs

Recent reports indicate that business is picking up in the gear sector so I hope your firm is thinking about bringing on some summer help. The curr...

INDUSTRY NEWS | 2017-05-15

Reshoring Initiative Partners with Return One Million Jobs for Reshoring Campaign

Return One Million Jobs (ROMJ) was created to raise $20 million to bring one million manufacturing jobs to the U.S. from offshore. The pr...

GEAR TALK WITH CHUCK | 2017-05-02

Invisible Activity

Are you familiar with the “Law of the Farm?” The Law reminds everyone that there are some activities that cannot be rushed. No matter how many trac...

GEAR TALK WITH CHUCK | 2017-03-21

Every Story Matters

One of my favorite car enthusiast publications, Hemmings Classic Car, has a monthly feature where readers submit a personal essay on their...

GEAR TALK WITH CHUCK | 2017-03-14

Shared Knowledge

If you think you know something, try teaching it. Putting aside the average engineer’s aversion to public speaking, the prospect of organizing your...

GEAR TALK WITH CHUCK | 2016-12-01

Flexibility and Capability as a Goal

My last blog discussed the age-old question of specialization vs. adaptability. You do not need a long memory to understand just how powerful speci...

GEAR TALK WITH CHUCK | 2016-11-17

Energy Policy Thoughts

Our industry makes parts for all different types of energy and transportation. AGMA, our national trade association, was formed, in part, because t...

GEAR TALK WITH CHUCK | 2016-11-08

Now the Work Resumes

With the election distraction finally behind us, we can hopefully get back to the very challenging job of building a better world for ourselves, ou...

GEAR TALK WITH CHUCK | 2016-11-01

Wither Manufacturing?

In a recent episode of my favorite zombie apocalypse show, SyFy’s Z Nation, a character celebrates the restarting of a hydroelec...

INDUSTRY NEWS | 2016-10-18

Two Problems, Two Machines, Two Solutions

Delta’s Investment in New Mitsubishi Equipment Adds Capacity, Reduces Cycle Time Dwight Smith, Vice President, Mitsubishi Hea...

GEAR TALK WITH CHUCK | 2016-08-23

Time for the Clan to Gather

Has your e-mail inbox been full lately? It is a sure sign that the International Machine Tool Show (IMTS) is rapidly approaching. This ye...

GEAR TALK WITH CHUCK | 2016-07-26

Making Manufacturing Cool Again

Can you remember the first time you saw a gear? I remember seeing gears on a cousin’s erector set crane when I was six or seven. A friend got a slo...

GEAR TALK WITH CHUCK | 2016-07-05

What if We Save the World Anyway?

In the midst of a heated discussion on the environment fifteen years ago, my son asked a thought provoking question: “What if we saved the world an...

GEAR TALK WITH CHUCK | 2016-05-12

Down on the Farm

My last posting discussed the problem of finding a technical leader for a gear company. Except in a few emergency situations, such as the sudden de...

GEAR TALK WITH CHUCK | 2016-04-26

No Fantasy Draft

Chicago will once again host the National Football League draft for former college players. Millions of fans will tune in to see where their favori...

GEAR TALK WITH CHUCK | 2016-04-21

Importing Technology

My last posting on soccer mentioned the industrial sports leagues in Milwaukee. A city of ethnic neighborhoods much like other rust belt towns was ...

GEAR TALK WITH CHUCK | 2016-03-31

The Dreaded Schedule Slip

What better time to talk about schedule slip than at the end of the month. Every place that I have ever worked or worked with has a “month end cris...

GEAR TALK WITH CHUCK | 2016-03-03

When Do We See the Gears?

In 1971, the American gear business was far different from today. I am unaware of any modern company with a formal gear cutter’s apprenticeship; at...

GEAR TALK WITH CHUCK | 2015-12-10

Doing Nothing is Not Without Risk

One last thought before we leave the subject of evaluating incoming quotes — doing nothing is risky. The gear business may seem like a stable, well...

GEAR TALK WITH CHUCK | 2015-12-01

Evaluating Risk

Every order a company takes involves risk. Even after they ship, products are subject to warranty claims and, in the event of customer bankruptcies...

GEAR TALK WITH CHUCK | 2015-11-12

The Price Disconnect

Traditionally, cost estimating is the basis for pricing. I was very surprised the first time a mentor pointed out that the two are often quite disc...

GEAR TALK WITH CHUCK | 2015-11-05

You Are Lost Without Records!

The guys who taught me to estimate all had great memories for part shapes, features — even part numbers. It takes years to develop that kind of tal...

GEAR TALK WITH CHUCK | 2015-09-17

Questions Should Not Be Disruptive

Continuing my rant on disruptive employees: a few posts ago I mentioned the ill will I engendered early in a new job by questioning the large perce...

GEAR TALK WITH CHUCK | 2015-09-03

When Good Employees Screw Up

A friend of mine is the inspection department for a custom machine shop. He is also the process engineer and, occasionally, a machine operator. Rec...

GEAR TALK WITH CHUCK | 2015-07-09

Passion is a Good Thing

I wrote in my last post about the passion our technical experts feel for the gear trade. Passion, in my opinion, is an underappreciated factor in a...

GEAR TALK WITH CHUCK | 2015-06-25

Fact Checks Needed

GEAR TALK WITH CHUCK | 2015-05-05

Building Your Team

The National Football League (NFL) held its annual draft of college players here in Chicago this past week. It is probably the most publicized huma...

GEAR TALK WITH CHUCK | 2015-04-16

Economic Priorities

If you occasionally buy a lottery ticket, you probably enjoy speculating on what you would do with the money. The only assured value of a ticket is...

GEAR TALK WITH CHUCK | 2015-04-09

How Much is Too Much?

My inner curmudgeon got loose in the last blog and I want to assure you that I, too, love big horsepower. My concern is that it be applied safely. ...

GEAR TALK WITH CHUCK | 2015-03-05

Where are Future Gear Guys and Gear Gals Coming From?

[starbox]Social media allows us to keep in touch with a much wider range of people than ever before. Recently one of my wife’s cousins posted a cop...

GEAR TALK WITH CHUCK | 2015-02-19

Asset or Liability?

[starbox]In encouraging young people to consider a career in engineering, I think it is important to be honest about the current “status” of engine...

GEAR TALK WITH CHUCK | 2015-02-10

Uncertain Times

[starbox] While the news media is heralding improved job and income growth, people in gear manufacturing are worried about the security of their j...

GEAR TALK WITH CHUCK | 2015-01-15

Studying the State of the Art

[starbox] A few years ago I presented a paper on reverse engineering at the AGMA Fall Technical Meeting. I heard through the grapevine that some f...

GEAR TALK WITH CHUCK | 2014-11-07

The Importance of Perseverance

GEAR TALK WITH CHUCK | 2014-10-09

Bad Career Moves

My e-mail correspondent was worried about making a bad career move. Since it is unlikely that people starting out in the gear trade today will work...

GEAR TALK WITH CHUCK | 2014-09-30

Creativity Makes Us Human

[starbox] The final quarter of my performance review system measures the creativity a person brings to their job. Some might argue that many jobs ...

GEAR TALK WITH CHUCK | 2014-08-14

The Problem of Certainty

[starbox] In writing about unforeseen consequences there is a risk of inspiring such conservatism in design that the resulting product is no lon...

GEAR TALK WITH CHUCK | 2014-08-07

Calmness Under Fire

So far, I expect my ideal “leader” to have commitment and vision. A third requirement is calmness under fire. While my life has been blessedly free...

GEAR TALK WITH CHUCK | 2014-06-20

The Invisibles: People Who Keep Shops Running

[starbox] I happened to catch an interview with author David Zwieg about his new book, The Invisibles: The Power of Anonymous Workers (...

GEAR TALK WITH CHUCK | 2014-05-29

What Defines Success?

[starbox] The last of my uncles died this week. In my parents’ generation he was considered a successful man, despite not having a college degre...

GEAR TALK WITH CHUCK | 2014-04-24

Working Dinosaurs

[starbox] Reflecting upon “transformative technology,” I remember the sadness I felt at the Cincinnati Gear Company auction when a group of pris...

GEAR TALK WITH CHUCK | 2014-04-08

A Tool Looking for a Task?

[starbox] I have been hearing a lot about 3-D printing and how it will revolutionize manufacturing in the United States. Millions are slated to ...

GEAR TALK WITH CHUCK | 2014-04-03

In Praise of Deadlines

[starbox] It is only April 2nd, but I can already predict that local TV cameras will have the post office staked out 13 days from now as thousan...

INDUSTRY NEWS | 2014-03-01

GT Extras

GT Videos featuring R&P Metrology, the latest from our Twitter and LinkedIn feeds and an introduction to gearboxfailure.com

FEATURE ARTICLES | 2014-03-01

PPD Wear Protection Treatment for Large Parts Opens New Horizons

Environmentally friendly, highly efficient and lasting a product's lifetime. With characteristics like this, Pulsed-Plasma Diffusion (PPD) technology from Oerlikon Balzers has established itself as an industry standard for the treatment of large automotive press tooling. Now the technology specialists are targeting new applications with this advanced process, offering an alternative to traditional hard-chrome processes.

TECHNICAL ARTICLES | 2014-03-01

Press Quenching and Effects of Prior Thermal History on Distortion during Heat Treatment

Precision components (industrial bearing races and automotive gears) can distort during heat treatment due to effects of free or unconstrained oil quenching. However, press quenching can be used to minimize these effects. This quenching method achieves the relatively stringent geometrical requirements stipulated by industrial manufacturing specifications. As performed on a wide variety of steel alloys, this specialized quenching technique is presented here, along with a case study showing the effects of prior thermal history on the distortion that is generated during press quenching.

TECHNICAL ARTICLES | 2013-05-01

Gear Design Optimization for Low Contact Temperature of a High Speed, Non Lubricated Spur Gear Pair

A gear design optimization approach applied to reduce tooth contact temperature and noise excitation of a high-speed spur gear pair running without lubricant. Optimum gear design search was done using the Run Many Cases software program. Thirty-one of over 480,000 possible gear designs were considered, based on low contact temperature and low transmission error. The best gear design was selected considering its manufacturability.

PUBLISHER'S PAGE | 2012-09-01

America Needs a Different Kind of Candidate

The two candidates in the upcoming presidential election offer two distinctly different approaches to solving America’s economic problems -- neither of which is likely to be successful

FEATURE ARTICLES | 2012-09-01

IMTS 2012 Events, Conferences and Some Just Plain Fun

IMTS exists primarily as a buy-and-sell North American venue for practically every conceivable technology used in manufacturing, and in that regard it has no equal. There you’ll find on display the latest and greatest technology, from hardware to software and everything in between. But anyone who has attended past shows is aware that IMTS is much more than that. Following is a rundown of "extracurricular" activities you’ll find waiting for your edification and enjoyment.

FEATURE ARTICLES | 2011-11-01

Best of Times, Worst of Times

An American renaissance in manufacturing is needed—and long overdue.

TECHNICAL ARTICLES | 2011-08-01

Benefit of Psychoachoustic Analyzing Methods for Gear Noise Investigation

This article provides an overview of the benefits of using psychoacoustic characteristics for describing gear noise. And with that, human hearing and the most important psychoacoustic values are introduced. Finally, results of noise tests with different gear sets aree presented. The tests are the basis for a correlation analysis between psychoacoustic values and gear characteristics.

PUBLISHER'S PAGE | 2010-05-01

Building on Your Foundation

When you graduated from school and made your way into the world, you probably thought you’d learned everything you needed to know to be successful. But those of us who’ve been out in the workforce for some time know that you never stop learning.

EVENTS | 2010-01-01

Calendar

The technical calendar from the January/February 2010 issue of Gear Technology.

TECHNICAL ARTICLES | 2010-01-01

Design, Development and Application of New, High-Performance Gear Steels

QuesTek Innovations LLC is applying its Materials by Design computational design technology to develop a new class of high-strength, secondary hardening gear steels that are optimized for high-temperature, low-pressure (i.e., vacuum) carburization. The new alloys offer three different levels of case hardness (with the ability to “dial-in” hardness profiles, including exceptionally high case hardness), and their high core strength, toughness and other properties offer the potential to reduce drivetrain weight or increase power density relative to incumbent alloys such as AISI 9310 or Pyrowear Alloy 53.

ADDENDUM | 2009-11-01

Reassembling Gear Drive History

Getting rid of personal mementos is an arduous housekeeping ritual for some of us; every last gear has a memory. One man’s trash is another man’s gold, after all, or in some cases, one failed business is a forgotten piece of personal and mechanical genealogy. Such is the case of the Hill-Climber chainless bicycle, the remains of which were pulled from a family junk pile after nearly half a century.

INDUSTRY NEWS | 2008-09-01

Industry News

The complete Industry News section from the September/October 2008 issue of Gear Technology.

FEATURE ARTICLES | 2008-06-01

Injection Molded Innovation

Alternative business strategies from some alternative gear manufacturers.

INDUSTRY NEWS | 2008-03-01

In Memoriam: Donald R. McVittie

It is with regret we report that Donald R. McVittie passed away January 20, 2008.

FEATURE ARTICLES | 2008-01-01

Well-Paying Manufacturing Jobs Are Blowing in the Wind--And State Governments are Racing to Harness Them

Lamentations continue—legitimately so—over the second-citizen status of manufacturing in the United States. The need undoubtedly continues for renewed support by government and educators for making things here once again...

TECHNICAL ARTICLES | 2007-08-01

Bevel Gears: Optimal High Speed Cutting

This article presents a summary of all factors that contribute to efficient and economical high-speed cutting of bevel and hypoid gears.

TECHNICAL ARTICLES | 2006-11-01

Optimization of the Gear Profile Grinding Process Utilizing an Analogy Process

In order to grind gears burn-free and as productively as possible, a better understanding of the process is required.

FEATURE ARTICLES | 2005-01-01

New Approach to Computerized Design of Spur and Helical Gears

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

TECHNICAL ARTICLES | 2004-11-01

Non-Standard Cylindrical Gears

Curved face width (CFW) spur gears are not popular in the gear industry. But these non-metallic gears have advantages over standard spur gears: higher contact ratio, higher tooth stiffness, and lower contact and bending stresses.

TECHNICAL ARTICLES | 2004-09-01

Simulation of Hobbing for Analysis of Cutting Edge Failure due to Chip Crush

There are great advantages in dry hobbing, not only for friendliness toward the environment, but also for increasing productivity and for decreasing manufacturing cost. Dry hobbing, however, often causes failures in hob cutting edges or problems with the surface quality of gear tooth flanks. These difficulties are not present when hobbing with cutting oil. Pinching and crushing of generated chips between the hob cutting edge and the work gear tooth flank is considered a major cause of those problems.

PRODUCT NEWS | 2003-07-01

Product News

Complete Product News for July/August 2003.

TECHNICAL ARTICLES | 2003-01-01

Gear Damage Detection Using Oil Debris Analysis

The purpose of this paper was to verify, when using an oil debris sensor, that accumulated mass predicts gear pitting damage and to identify a method to set threshold limits for damaged gears.

ADDENDUM | 2002-09-01

Gears of Rockwell Hardness

Nobody's sure what went on in Bolsa Chica, CA, when gear-shaped stones were used there 8,700 years ago, but a popular belief is that at least some activity revolved around manufacturing.

ADDENDUM | 2002-07-01

A Gear with a Sweet Tooth

Gear manufacturers typically use plastic, steel or other metals to make their gears, but Andrew Shotts made his first gears out of sugar and chocolate.

FEATURE ARTICLES | 2001-07-01

Gear Expo and Fall Technical Meeting - Together Again!

AGMA is looking to boost attendance at Gear Expo 2001 and the 2001 Fall Technical Meeting by "cross-pollinating" the two events.

ADDENDUM | 1999-11-01

One Fast Gear Boxx

You go, and if your name is Ryan Boxx, you go faster than everyone else. Boxx became the fastest 15-year-old in America this summer when he won his division of the National Hot Rod Association's Junior Drag Racing League National Championship.

REVOLUTIONS | 1999-11-01

Revolutions

Welcome to Revolutions, the column that brings you the latest, most up-to-date and easy-to-read information about the people and technology of the gear industry.

PUBLISHER'S PAGE | 1999-07-01

Kicking Tires

For the first time in probably 15 years, I've attended an auto show. Although I haven't been purposely avoiding them, over the past decade or so, the auto industry hasn't given me a compelling reason to go.

TECHNICAL ARTICLES | 1999-01-01

ISO 6336-5: Strength and Quality of Materials

This is the fourth and final article in a series exploring the new ISO 6336 gear rating standard and its methods of calculation. The opinions expressed herein are those of the author as an individual. They do not represent the opinions of any organization of which he is a member.

TECHNICAL ARTICLES | 1999-01-01

Selection of the Optimal Parameters of the Rack-Tool to Ensure the Maximum Gear Tooth Profile Accuracy

An analysis of possibilities for the selection of tool geometry parameters was made in order to reduce tooth profile errors during the grinding of gears by different methods. The selection of parameters was based on the analysis of he grid diagram of a gear and a rack. Some formulas and graphs are presented for the selection of the pressure angle, module and addendum of the rack-tool. The results from the grinding experimental gears confirm the theoretical analysis.

VOICES | 1998-03-01

Viewpoint

Jules Kish responds to comments about his article on finding a hunting ratio, and Dr. Sante Basili argues that shaving is still the best way to finish a rough-cut gear.

PUBLISHER'S PAGE | 1997-11-01

Good - Bye, Dad

I sat down to write this editorial about my father, Harold Goldstein, as he approached his 80th birthday in October. I had meant it to be a celebration of his nearly 65 years in the machine tool business. Unfortunately, on August 26, as I was working on it, my father passed away after a long battle with emphysema. This editorial has now become a memorial as well as a celebration.

FEATURE ARTICLES | 1997-09-01

Who's Who and What's What At Gear Expo '97

Below are listed the Gear Technology advertisers exhibiting at Gear Expo 97.

TECHNICAL ARTICLES | 1997-07-01

Structural Analysis of Teeth With Asymmetrical Profiles

This article illustrates a structural analysis of asymmetrical teeth. This study was carried out because of the impossibility of applying traditional calculations to procedures involved in the specific case. In particular, software for the automatic generation of meshes was devised because existing software does not produce results suitable for the new geometrical model required. Having carried out the structural calculations, a comparative study of the stress fields of symmetrical and asymmetrical teeth was carried out. The structural advantages of the latter type of teeth emerged.

FEATURE ARTICLES | 1997-03-01

The Way of the Web

Okay. You've been convinced. You've gritted your teeth and decided to spend the money to launch a company Web site. Everybody from your teenage propeller-head to the girl in the mail room and the salesman in the flashy suit who gave you "such a deal" on Web site services has promised that your site will be the best thing that's happened to your business since the advent of CNC machines.

FEATURE ARTICLES | 1996-11-01

Standard Issues

Standards are unlike gears themselves: mundane, but complex, ubiquitous and absolutely vital. Standards are a lingua franca, providing a common language with reference points for evaluating product reliability and performance for manufacturers and users. The standards development process provides a scientific forum for discussion of product design, materials and applications, which can lead to product improvement. Standards can also be a powerful marketing tool for either penetrating new markets or protecting established ones.

PUBLISHER'S PAGE | 1996-05-01

Other People's Footsteps

Earlier this year, a relative of mine, Sidney Mandell, tragically passed away. I had the good fortune to serve with Sidney on the Board of Directors and the Executive Committee of the Machinery Dealers National Association (MDNA). Though he started before me, his MDNA career and mine overlapped for about 2 years. As I think back on the many things I learned form him, one of his favorite phrases keeps come to mind: "We walk in the footsteps of those who have gone before us."

ADDENDUM | 1996-03-01

The Gears of Avon & Other Tragedies

As part of the Addendum Team's never-ending quest to improve the overall cultural tone of the gear industry, we bring you the following: April 23 is the 432nd birthday of William Shakespeare.

EVENTS | 1995-09-01

Technical Calendar

Complete Technical Calendar for September/October 1995.

FEATURE ARTICLES | 1995-05-01

CNC Software Savvy

Question: When we purchase our first CNC gear hobbing machine, what questions should we ask about the software? What do we need to know to correctly specify the system requirements?

TECHNICAL ARTICLES | 1995-05-01

EHL Film Thickness, Additives and Gear Surface Fatigue

Aircraft transmissions for helicopters, turboprops and geared turbofan aircraft require high reliability and provide several thousand hours of operation between overhauls. In addition, They should be lightweight and have very high efficiency to minimize operating costs for the aircraft.

INDUSTRY NEWS | 1995-03-01

Industry News

Acquisitions, Contracts, and ISO 9000 Certification

TECHNICAL ARTICLES | 1994-11-01

Gear Hobbing Without Coolant

For environmental and economic reasons, the use of coolant in machining processes is increasingly being questioned. Rising coolant prices and disposal costs, as well as strains on workers and the environment, have fueled the debate. The use of coolant has given rise to a highly technical system for handling coolant in the machine (cooling, filtering) and protecting the environment (filter, oil-mist collector). In this area the latest cutting materials - used with or without coolant - have great potential for making the metal-removal process more economical. The natural progression to completely dry machining has decisive advantages for hobbing.

TECHNICAL ARTICLES | 1993-03-01

Frozen Gears

Durability is the most important criterion used to define the quality of a gear. The freezing of metals has been acknowledged for almost thirty years as an effective method for increasing durability, or "wear life," and decreasing residual stress in tool steels. The recent field of deep cryogenics (below -300 degrees F) has brought us high temperature superconductors, the superconducting super collider, cryo-biology, and magnotehydrodynamic drive systems. It has also brought many additional durability benefits to metals.

TECHNICAL ARTICLES | 1992-07-01

Gear Inspection and Measurement

The purpose of gear inspection is to: Assure required accuracy and quality, Lower overall cost of manufacture by controlling rejects and scrap, Control machines and machining practices and maintain produced accuracy as machines and tools wear, Determine hear treat distortions to make necessary corrections.

TECHNICAL ARTICLES | 1992-01-01

Design Guidelines for High-Capacity Bevel Gear Systems

The design of any gearing system is a difficult, multifaceted process. When the system includes bevel gearing, the process is further complicated by the complex nature of the bevel gears themselves. In most cases, the design is based on an evaluation of the ratio required for the gear set, the overall envelope geometry, and the calculation of bending and contact stresses for the gear set to determine its load capacity. There are, however, a great many other parameters which must be addressed if the resultant gear system is to be truly optimum. A considerable body of data related to the optimal design of bevel gears has been developed by the aerospace gear design community in general and by the helicopter community in particular. This article provides a summary of just a few design guidelines based on these data in an effort to provide some guidance in the design of bevel gearing so that maximum capacity may be obtained. The following factors, which may not normally be considered in the usual design practice, are presented and discussed in outline form: Integrated gear/shaft/bearing systems Effects of rim thickness on gear tooth stresses Resonant response

TECHNICAL ARTICLES | 1991-03-01

Bevel Gear Manufacturing Troubleshooting

The quality of gearing is a function of many factors ranging from design, manufacturing processes, machine capability, gear steel material, the machine operator, and the quality control methods employed. This article discusses many of the bevel gear manufacturing problems encountered by gear manufacturers and some of the troubleshooting techniques used.

PUBLISHER'S PAGE | 1990-03-01

Capital Gains, Societal Gains, or No Gains At All

Taxes may be one of the only two sure things in life, but that doesn't make them popular. Nobody is happy to pay them, and the bigger the amount due, the unhappier the taxpayer. Conversely, politicians know that coming out in favor of a tax cut is the equivalent of voting for apple pie and motherhood. It's a sure-fire success at the ballot box.

VOICES | 1984-08-01

A Second Rate Society - Never

What was once recognized as the unique genius of America is now slipping away from us and, in many areas, is now seen as a "second rate" capability. Unless action is taken now, this country is in real danger of being unable to regain its supremacy in technological development and economic vigor. First Americans must understand the serious implications of the problem; and second, we must dedicate ourselves to national and local actions that will ensure a greater scientific and technological literacy in America.

Jobs

Pushed to the Maximum