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Articles About Gleason Metrology Systems


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1 Gear Noise Analysis: Design and Manufacturing Challenges Drive New Solutions for Noise Reduction (July 2019)

Gear noise is among the issues of greatest concern in today's modern gearboxes. Significant research has resulted in the application of enhancements in all phases of gear manufacturing, and the work is ongoing. With the introduction of Electric Vehicles (EV), research and development in this area has surged in recent years. Most importantly, powerful new noise analysis solutions are fast becoming available.

2 Product News (June/July 2013)

The complete Product News section from the June/July 2013 issue of Gear Technology.

3 Industry News (July 2017)

AGMA adds two new committees, Star Cutter Celebrates 90 years, plus other news from around the industry.

4 Product News (August 2014)

The complete Product News section from the August 2014 issue of Gear Technology.

5 Industry News (August 2020)

The latest news from GKN, Milan Manufacturing, Solar Atmospheres, Heidenhain, Furnaces North America, Gleason, Haas Multigrind, Schunk and Michigan Metrology

6 Industry News (November/December 2018)

The complete Industry News section from the November/December 2018 issue of Gear Technology.

7 Inspection System Upgrades Meet EV Gear Challenges (July 2018)

Delta Research upgrades its Gleason Metrology Workhorses to meet the development requirements of the latest electrical drive vehicles.

8 In-Process, Complete Gear Inspection at Light Speeds (July 2018)

New GRSL technology adds value to high-volume transmission gear inspection by combining non-contact laser inspection with tried-and-true composite roll testing.

9 Overlapping Pursuits (July 2018)

More than any other field, IIoT overlaps directly with metrology's mission to analyze and measure as much of the manufacturing process as possible, and it's no surprise that the latter is utilizing the former.

10 Gear Expo 2017 and ASM Heat Treat 2017 Booth Previews (September/October 2017)

The latest technology on display in Columbus, OH. October 24-26.

11 Gear Inspection at Light Speed (July 2017)

Revolutionary new inspection technologies are helping gear manufacturers develop and produce more complex, higher quality gears in a fraction of the time it used to take.

12 Product News (July 2016)

News about the Latest Products

13 IMTS 2014 Product Preview (August 2014)

An in-depth look at the major booths with the latest technology used in gear manufacturing.

14 Industry News (July 2014)

The complete Industry News section from the July 2014 issue of Gear Technology.

15 Industry News (June 2018)

The complete industry news section from the June 2018 issue of Gear Technology.

16 Practical Magic - Metrology Products Keep Pace with Machine Technology (July 2009)

Gear metrology is a revolving door of software packages and system upgrades. It has to be in order to keep up with the productivity and development processes of the machines on the manufacturing floor. Temperature compensation, faster inspection times and improved software packages are just a few of the advancements currently in play as companies prepare for new opportunities in areas like alternative energy, automotive and aerospace/defense.

17 ...And from the Industry (October/November 1984)

Industry News from October/November 1984 Gear Technology.

18 The Perfect Time for Power Skiving (July 2020)

Italian gear manufacturer Metalcastello’s investment in new Gleason Power Skiving technology gives the company a strong competitive edge as the world’s industries gear up for the post-pandemic.

19 Tinkering with Carbide (March/April 2020)

Everybody's working with carbide tools these days, but carbide materials are expensive. However, these cutting tool companies think they might have some solutions to extend tool life and reduce costs.

20 Real-Time Measurement Opportunities (March/April 2020)

Shop floor inspection and gaging equipment is putting advanced metrology systems right on the factory floor. Here’s a collection of articles on shop floor inspection and gages from companies like Gleason, Mahr, Comtorgage, United Tool Supply and Frenco.

21 Inside Look at the Hard Finishing Cell (May 2020)

Gleason Combines Threaded Wheel Grinding with GRSL Gear Inspection

22 Prototyping on Bevel Gear Cutting and Grinding Machines (May 2020)

Why Prototyping with End-mills on Bevel Gear Machines? Manufacturing of spiral bevel and hypoid gears can be conducted in several ways.

23 Industry News (May 2020)

The complete Industry News section from the May 2020 issue of Gear Technology.

24 Converting Revacycle to Coniflex (June 2020)

Mathematically precise tooth surface definition and contact analysis help to develop state-of-the-art straight bevel gears for many industrial applications. The new Coniflex-Plus manufacturing process utilizes high-speed dry cutting with production times per slot which are about twice compared to the fast Revacycle process.

25 Double Differential for Electric Vehicle and Hybrid Transmissions (August 2020)

There's never been a better time to put the spotlight on e-drive transmissions and electric vehicles. They're obviously not just coming: they're already here. Just check out any auto show or showroom. That's why Gear Technology magazine is pleased to present the first installment in a series of chapters excerpted from Dr. Hermann J. Stadtfeld's newest book, "E-Drive Transmission Guide - New solutions for electric- and hybrid transmission vehicles."

26 High Traction Differentials (July 2020)

This article explains how gear ratio can improve traction in a differential.

27 Grinding Wheel Wear, Dressing, Tip Advance and Work Phase Angle Adjustment after Corrections (January/February 2020)

Are there rules to aid in grinding process optimization?

28 Product News (September/October 2020)

The complete Product News section from the September/October 2020 issue of Gear Technology.

29 Introduction to Electric Vehicle Transmissions (September/October 2020)

The first chapter from a new book by Dr. Hermann J. Stadtfeld provides an overview of the need for new technologies and approaches when it comes to developing transmissions for electric vehicles.

30 Sizing of Profile Modifications for Asymmetric Gears (September/October 2020)

Lately, the use of asymmetric gears in automotive and other applications is an upcoming trend, though few applications are known to have asymmetric teeth. However, an increased interest in asymmetric gears can be seen. Many companies have started to design and test such applications.

31 Automotive Drive Concepts (November/December 2020)

Attempts to eliminate mechanical drive trains in automobiles and trucks have had limited success because of cost, weight, dynamic characteristic, and efficiency of the alternative components.

32 Gear Factory of the Future (January/February 2021)

What does the future hold for the global gear industry?

33 The Hunting Tooth and its Effect on Break-In (January/February 2021)

Has there ever been any experimental verification of the benefits of designing a gear pair to have a “hunting tooth” or is it just theoretical?

34 Product News (March/April 2020)

Gleason skiving machines equipped with on-board cutter sharpening; Helios celebrates anniversary of cutter sharpener line; and more product news.

35 Bevel Gear Generators Get Better with Age (January/February 2020)

An economical modernization program gives Designatronics' tried-and-true Gleason No. 102 Coniflex generators a new lease on life for fast, reliable production of smaller precision straight bevel gears.

36 Better Gears & Splines With Metrology (July 2007)

What does it mean to make "better" gears? Better gears more closely resemble the intended design parameters.

37 Watch It - Revolutions (March/April 2019)

It's time to catch up on the episodes of Revolutions that you might have missed.

38 Product News (November/December 2018)

The latest product news for the gear industry, including new products and services from Gleason, Liebherr, Forest City Gear, GMTA, Starrett and Kennametal.

39 PentacMono-RT: High-Performance Face Milling Cutter Heads (November/December 2018)

The theory behind the latest bevel gear cutting tools is explained in detail.

40 The Changing Industrial Landscape (March/April 2009)

Companies weigh in on green technology and sustainable efforts.

41 Product News (March/April 2019)

The complete Product News section from the March/April 2019 issue of Gear Technology.

42 The Quick-Change Advantage (March/April 2019)

Workholding Systems Continue to Focus on Speed and Efficiency to Improve Machining Operations

43 Loading Upgrades (March/April 2019)

The latest advances in gear manufacturing automation all seem to revolve around a common theme: automated loading.

44 Automation to Lighten Your Load (March/April 2019)

New turnkey, "off-the-shelf" Gleason 2700AR system automates larger-gear load/unload to speed throughput, optimize process flow - and take the weight off the operator.

45 Cutting Tool Dynamics (May 2019)

Meeting Today’s Requirements for High-Quality Gears

46 Reverse Cutter Hand for Face Milling and Face Hobbing (November/December 2019)

Is a left-hand cutter required for a left-hand face mill part?

47 Industry News (May 2019)

The complete Industry News section from the May 2019 issue of Gear Technology.

48 Product News (June 2019)

The complete Product News section from the June 2019 issue of Gear Technology.

49 Method for High Accuracy Cutting Blade Inspection (June 2019)

Inspection of the cutting blades is an important step in the bevel gear manufacture. The proper blade geometry ensures that the desired gear tooth form can be achieved. The accuracy of the process can be compromised when the blade profile consists of several small sections such as protuberance, main profile, top relief and edge radius. Another common obstacle - are outliers which can be caused by dust particles, surface roughness and also floor vibrations during the data acquisition. This paper proposes the methods to improve the robustness of the inspection process in such cases.

50 The Measure of a Gear (July 2019)

Plastic gears still have an entire frontier to explore, and how they measure up against their steel cousins is a question still being investigated.

51 Practical Gear Engineering: Answers to Common Gear Manufacturing Questions (July 2019)

New book from Gleason's Vice President Bevel Gear Technology will be exclusively excerpted in Gear Technology magazine.

52 Bevel Gear Blank Drawing Procedure (July 2019)

With this first installment we begin a series of randomly excerpted chapters from Dr. Hermann J. Stadtfeld's new book — Practical Gear Engineering.

53 Overcoming Barriers (August 2019)

Depending on who you ask, the Industrial Internet of Things is growing more slowly than anyone predicted. Why is that, and what does that mean for the gear manufacturing industry?

54 The Skiving Evolution (November/December 2019)

Machine Tool Providers Discuss the Latest Benefits, Technologies and Considerations

55 Driving Down Gear Noise in E-Mobility (May 2021)

Gleason Combi Honing system meets eDrive transmission standards.

56 Extending the Benefits of Elemental Gear Inspection (July 2009)

It may not be widely recognized that most of the inspection data supplied by inspection equipment, following the practices of AGMA Standard 2015 and similar standards, are not of elemental accuracy deviations but of some form of composite deviations. This paper demonstrates the validity of this “composite” label by first defining the nature of a true elemental deviation and then, by referring to earlier literature, demonstrating how the common inspection practices for involute, lead (on helical gears), pitch, and, in some cases, total accumulated pitch, constitute composite measurements.

57 The Evolution of Gear Chamfering (September/October 2018)

The latest technological solutions help keep chamfering and deburring operations in-line -- often without increasing cycle times.

58 Product News (January/February 2019)

The complete Product News section from the January/February issue of Gear Technology.

59 Industry News (September/October 2014)

The complete Industry News section from the September / October 2014 issue of Gear Technology.

60 Gear Grinding Today (June 2017)

New divisions, open houses and the continued rise of the Industrial Internet of Things - There's been a lot going on in gear grinding in the past year.

61 Industry News (June 2017)

The complete Industry News section from the June 2017 issue of Gear Technology.

62 Measuring Left and Right (July 2017)

CMM Inspection vs. GMM Inspection. Speed is the name of the game.

63 Industry News (July 2009)

The complete industry news section from the July 2009 issue of Gear Technology.

64 Industry News (August 2017)

Results from the 2017 Powder Metallurgy Design Excellence Awards, plus other news from around the industry.

65 Product News (September/October 2018)

See the latest gear industry products from Marposs, GWJ Technology, Norton|Saint Gobain, Mitutoyo, C&B Machinery, DMG Mori, Gear Motions and LK Metrology.

66 Industry News (July 2019)

The complete Industry News section from the July 2019 issue of Gear Technology.

67 First International Involute Gear Comparison (August 2014)

Measurement institutions of seven different countries — China, Germany, Japan, Thailand, Ukraine, United Kingdom and the U.S. — participated in the implementation of the first international comparison of involute gear measurement standards. The German metrology institute Physikalisch-Technische Bundesanstalt (PTB) was chosen as the pilot laboratory as well as the organizer. Three typical involute gear measurement standards provided by the PTB were deployed for this comparison: a profile, a helix and a pitch measurement standard. In the final analysis, of the results obtained from all participants, the weighted mean was evaluated as reference value for all 28 measured parameters. However, besides the measurement standards, the measured parameters, and, most importantly, some of the comparison results from all participants are anonymously presented. Furthermore, mishandling of the measurement standards as occurred during the comparison will be illustrated.

68 CMM for Gear Inspection (June 2020)

Gear inspection has long been a highly specialized costly investment and an overall challenging part of the gear manufacturing process. Given that complicated gages, testers, and CNC equipment all go into creating high quality gears, companies may want to invest in a CMM to streamline inspection.

69 Industry News (July 2020)

The latest gear industry news from Machine Tool Builders, Global Gear, EMAG, Bourn & Koch, Klingelnberg and others.

70 Product News (May 2021)

Gear-related new technology from Liquidtool Manager, Marposs, EDM Intelligent Solutions, Helios Gear Products, Kapp Niles Metrology and more.

71 Industry News (January/February 2013)

The complete Industry News section from the January/February 2013 issue of Gear Technology.

72 Off-Highway Gears (June/July 2013)

Market needs push in 2013, but will it get one? The construction/off-highway industries have been here before. New equipment, technologies and innovations during an economic standstill that some have been dealing with since 2007.

73 Getting the Right Tools (September/October 2014)

So there is little chance that they need the same software to assist with their work. Gone are the days when companies wrote their own code and process engineers thumbed the same tattered reference book.

74 2017 Gear Expo: Gears, Machinery and a Whole Lot More (August 2017)

There is so much more to Gear Expo than gears or the machinery that makes them. That's because it takes much, much more to make a finished gear than even the most sophisticated machine. And it is exhibitors who are part of the "much, much, more" that are addressed in this article.

75 Product News (January/February 2018)

The complete Product News section from the January/February issue of Gear Technology.

76 Product News (September/October 2014)

The complete product news section from the September / October 2014 Issue Gear Technology.

77 Winds of Change in Profile Grinding (May/June 2004)

Recent breakthroughs in profile grinding software are helping Anderson Precision Gears and others meet wind power’s insatiable appetite for faster production of large, high-quality gears.

78 Dearborn Precision Puts Dual Purpose Zeiss CMM to the Task (May 2011)

When parts you manufacture pass through numerous processes such as deep hole drilling, machining, hobbing and grinding, a CMM is essential when your customers require 100 percent in-process and final inspection.

79 The Basics of Gear Metrology and Terminology Part I (September/October 1998)

It is very common for those working in the gear manufacturing industry to have only a limited understanding of the fundamental principals of involute helicoid gear metrology, the tendency being to leave the topic to specialists in the gear lab. It is well known that quiet, reliable gears can only be made using the information gleaned from proper gear metrology.

80 Not All Good Ideas Are Brand New (September 2011)

A reader clarifies technology presented in the March/April 2011 issue.

81 Recent Developments in Gear Metrology (November/December 1991)

Metrology is a vital component of gear manufacturing. Recent changes in this area, due in large part to the advent of computers, are highlighted in this article by comparison with more traditional methods.

82 Gear Inspection and Measurement (July/August 1992)

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.

83 Gear Metrology Standards and ISO 9000 (May/June 1994)

I noted with interest the beginning of Gear Technology's three-part series on ISO 9000 certification. I also recently attended Brown & Sharpe's/Leitz gear metrology seminar. Both events caused me to smile and reflect.

84 The Next Step in Bevel Gear Metrology (January/February 1996)

In recent years, gear inspection requirements have changed considerably, but inspection methods have barely kept pace. The gap is especially noticeable in bevel gears, whose geometry has always made testing them a complicated, expensive and time-consuming process. Present roll test methods for determining flank form and quality of gear sets are hardly applicable to bevel gears at all, and the time, expense and sophistication required for coordinate measurement has limited its use to gear development, with only sampling occurring during production.

85 Rebuilding a Metrology Infrastructure (January/February 1996)

The American Society of Mechanical Engineers (ASME) announced at Gear Expo '95 that a national service for the calibration of involute artifacts is now available at the Department of Energy's Y-12 Plant in Oak Ridge, TN.

86 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.

87 The Basics of Gear Metrology and Terminology Part II (November/December 1998)

In the last section, we discussed gear inspection; the types of errors found by single and double flank composite and analytical tests; involute geometry; the involute cam and the causes and symptoms of profile errors. In this section, we go into tooth alignment and line of contact issues including lead, helix angles, pitch, pitchline runout, testing and errors in pitch and alignment.

88 Portable Gear Inspection (July 2014)

Compact, custom and portable solutions are gaining more attention in manufacturing today as companies seek out the tools that offer the greatest productivity gains on the shop floor. Gear inspection seems to be following suit.

89 Inspection Focus News & Technology (July/August 2000)

This section is dedicated to what's new and what's happening in the world of gear inspection and metrology. Here you will find news about products, companies and organizations, services and events affecting the gear inspection and metrology industry.

90 Product News (October 2012)

The complete Product News section from the October 2012 issue of Gear Technology.

91 GT Extras (June/July 2013)

Video from Hexagon Metrology, Back-to-Basics archive, e-mail newsletter updates and what's happening on LinkedIn

92 Product News (August 2013)

The complete Product News Section from the August 2013 issue of Gear Technology.

93 Product News (January/February 2014)

The complete Product News section from the January/February 2014 issue of Gear Technology.

94 GT Extras (March/April 2014)

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

95 Practical Considerations for the Use of Double-Flank Testing for the Manufacturing Control of Gearing - Part II (March/April 2014)

Part I of this paper, which appeared in the January/February issue of Gear Technology, described the theory behind double-flank composite inspection. It detailed the apparatus used, the various measurements that can be achieved using it, the calculations involved and their interpretation. The concluding Part II presents a discussion of the practical application of double-flank composite inspection -- especially for large-volume operations. It also addresses statistical techniques that can be used in conjunction with double-flank composite inspection, as well as an in-depth analysis of gage R&R for this technique.

96 Product News (July 2014)

The complete Product News section from the July 2014 issue of Gear Technology.

97 First Part Right - Fiction or Reality (September/October 2018)

This paper analyzes the different influences of the deviations between nominal and actual geometry for a first-cut bevel gear. In each section, the customary tolerances are quantified and the possibilities to reduce them are discussed.

98 Industry News (August 2018)

The complete Industry News section from the August 2018 issue of Gear Technology.

99 Bevel Gear Development and Testing Procedure (July/August 1986)

The most conclusive test of bevel and hypoid gears is their operation under normal running conditions in their final mountings. Testing not only maintains quality and uniformity during manufacture, but also determines if the gears will be satisfactory for their intended applications.

100 An Emphasis on Accuracy (June/July 2011)

Meeting the many challenges of large gear inspection.

101 The Art of Versatility - Grinding at Gear Expo and EMO (October 2013)

Whether you spent time at Gear Expo in Indianapolis or EMO in Hannover, there was certainly new technology attracting attention. Machine tools are faster, more efficient and can integrate numerous functions in a single setup. Grinding technology is turning science upside down and inside out with high-speed removal rates and increased throughput.

102 Industry News (October 2013)

The complete Industry News section from the October 2013 issue of Gear Technology.

103 Product News (November/December 2013)

The complete Product News section from the November/December 2013 issue of Gear Technology.

104 Power Skiving of Cylindrical Gears on Different Machine Platforms (January/February 2014)

It has long been known that the skiving process for machining internal gears is multiple times faster than shaping, and more flexible than broaching, due to skiving's continuous chip removal capability. However, skiving has always presented a challenge to machines and tools. With the relatively low dynamic stiffness in the gear trains of mechanical machines, as well as the fast wear of uncoated cutters, skiving of cylindrical gears never achieved acceptance in shaping or hobbing, until recently.

105 Industry News (January/February 2014)

The complete Industry News section from the January/February 2014 issue of Gear Technology.

106 No Compromising on Quality at Allison Transmission (July 2014)

Gleason 350GMS helps put higher quality, more reliable gears into its next-generation TC10 automatic transmission.

107 Real-World Job Training the Lean Way -- And Loving It (September 2011)

Make no mistake -- lean manufacturing is here to stay. And no wonder. As a fiercely competitive global economy continues to alter companies’ “Main Street” thinking, that relatively new dynamic is spurring the need for “I-need-it-yesterday” production output. And for increasingly more industries -- big or small -- that means getting as lean as you can, as fast as you can.

108 Gleason Hosts WZL Gear Conference USA (November/December 2014)

The 5th WZL Gear Conference USA took place October 22-23 at the Gleason Works facility in Rochester, NY. More than 130 gear technologists participated

109 Wanted, Custom-Made Machine Tools (August 2013)

The machine tool industry is as competitive as ever. New machine technologies, materials, coatings and software upgrades are changing the way gears are being manufactured. Companies like Gleason, Liebherr, Kapp/Niles and DMG/Mori Seiki spend plenty of time and resources on R&D to develop the best products for the gear market. More importantly, these companies engage with (and listen to) customer requests.

110 Product News (November/December 2014)

The complete Product News section from the November/December 2014 issue.

111 Product News (January/February 2015)

Product news from the Gear Industry

112 Hub of the Gear Industry (January/February 2015)

The name Gleason is practically synonymous with gear manufacturing. Since the company was founded in 1865, the technology of gear manufacturing has been its focus, its core and its competitive advantage.

113 Industry News (March/April 2015)

The complete Industry News section from the March/April 2015 issue of Gear Technology.

114 Gear Grinding is Getting Easier, Better, Faster, Stronger (June 2015)

Liebherr is well-known as one of the world’s largest privately owned companies — a titan in heavy industry specializing in cranes, trucks and mammoth earth moving and mining equipment.

115 Product News (June 2015)

Latest News about Gear Industry Products

116 Industry News (July 2015)

News from the Gear Industry

117 Gear Expo 2013 - An Oscar-Worthy Indy Production (August 2013)

We are well into an odd-number year, so it must be just about time for another Gear Expo. Indeed, the big show -- Gear Expo 2013 -- kicks off in Indianapolis at 9:00 a.m. Tuesday, September 17, wrapping up Thursday the 19th at 4:00 p.m. And whether you are exhibiting or attending, the bottom line is you are going -- a good thing for you, your company and the tightly knit U.S. gear industry.

118 Leading the Way in Lead Crown Correction and Inspection (August 2013)

Forest City Gear applies advanced gear shaping and inspection technologies to help solve difficult lead crown correction challenges half a world away. But these solutions can also benefit customers much closer to home, the company says. Here's how…

119 Industry News (January/February 2016)

Latest new from the Gear Industry

120 Gleason Corporation Acquires The Pfauter Group (September/October 1997)

Gleason Corporation has announced that agreement has been reached on all terms to acquire for approximately $36 million in cash the Hermann Pfauter Group, including, among other operations, Hermann Pfauter GmbH & Co., a privately held leading producer of gear equipment based in Ludwigsburg, Germany; its 76% interest in Pfauter-Maad Cutting Tools, a leading cutting tool manufacturer basked in Loves Park, IL; and Pfauter-Maag management's 24% ownership interest in that company. The acquisition includes all assets and liabilities, including the assumption of approximately $56 million in bank debt.

121 Tomorrow's Gear Inspection Systems: Arriving Just in Time (June/July 2012)

Gleason's GMS analytical gear inspection systems provide all the right features at Eaton Corp.

122 Synthesis of Spiral Bevel Gears (March/April 1991)

There are different types of spiral bevel gears, based on the methods of generation of gear-tooth surfaces. A few notable ones are the Gleason's gearing, the Klingelnberg's Palloid System, and the Klingelnberg's and Oerlikon's Cyclo Palliod System. The design of each type of spiral bevel gear depends on the method of generation used. It is based on specified and detailed directions which have been worked out by the mentioned companies. However, there are some general aspects, such as the concepts of pitch cones, generating gear, and conditions of force transmissions that are common for all types of spiral bevel gears.

123 Cutting Low-Pitch-Angle Bevel Gears, Worm Gears and The Oil Entry Gap (July/August 1992)

Question: Do machines exist that are capable of cutting bevel gear teeth on a gear of the following specifications: 14 teeth, 1" circular pitch, 14.5 degrees pressure angle, 4 degrees pitch cone angle, 27.5" cone distance, and an 2.5" face width?

124 CNC Technology and the System-Independent Manufacture of Spiral Bevel Gears (September/October 1992)

CNC technology offers new opportunities for the manufacture of bevel gears. While traditionally the purchase of a specific machine at the same time determined a particular production system, CNC technology permits the processing of bevel gears using a wide variety of methods. The ideological dispute between "tapered tooth or parallel depth tooth" and "single indexing or continuous indexing" no longer leads to an irreversible fundamental decision. The systems have instead become penetrable, and with existing CNC machines, it is possible to select this or that system according to factual considerations at a later date.

125 Jim Gleason of The Gleason Works (January/February 1995)

What follows is the first of a series of interviews Gear Technology is conducting with leaders in the gear industry. We will be asking them for their insights on where the industry is, where it's been and where they see it going in the future. Our first interview is with Jim Gleason, president and chairman of Gleason Corporation, Rochester, NY.

126 Gleason Acquires Assets of Hurth (September/October 1995)

Rochester, NY - Gleason Corporation has acquired the assets of Hurth Maschinen and Werkzeuge GmbH, the designer and builder of cylindrical (parallel-axis) gear-making machinery and tooling based in Munich, Germany. The addition of Hurth gear shaving machines and tooling and gear honing machines will further broaden Gleason's expanding product line for manufacturers of cylindrical gears.

127 The First Lady of Gearing (September/October 1997)

In 1877, Irish immigrant William Gleason, owner of a machine tool business in Rochester, NY, suffered a terrible blow. Gleason's son Tom died. The loss was not merely a personal one. Tom had been his father's assistant, and the senior Gleason had no one to fill the gap and help him carry on his business.

128 New Technology for Stronger Plastic Gears (August 2012)

Gleason-K2 Plastics eliminates weld lines with no machining.

129 Industry News and AGMA Calendar (August/September 1984)

Herman Riccio, Chicago Gear Works President, to Retire; Gleason Opens MI Sales Office; American Pfauter hires Steve Peterson; plus AGMA's technical calendar for the Fall of 1984.

130 Gear Grinding Gets Integrated at IMTS 2012 (October 2012)

The latest machines, tooling and technology for gear grinding were featured at IMTS 2012.

131 Differential Gears (October 2012)

What are the manufacturing methods used to make bevel gears used in automotive differentials?

132 Gleason Machine Setup (November/December 2012)

A reader asks about the proper setup procedures for cutting a ring and pinion set on a Gleason 116.

133 Industry News (November/December 2012)

The complete Industry News section from the November/December 2012 issue of Gear Technology.

134 Product News (May 2013)

The complete Product News section from the May 2013 issue of Gear Technology.

135 Reinventing Cutting Tool Production at Gleason (May 2013)

Investment in advanced new manufacturing technologies is helping to reinvent production processes for bevel gear cutters and coarse-pitch hobs at Gleason - delivering significant benefits downstream to customers seeking shorter deliveries, longer tool life and better results.

136 If You Rebuild It, They Will Buy It (May 2013)

It’s been said that the best ideas are often someone else's. But with rebuilt, retrofitted, re-controlled or remanufactured machine tools, buyer beware and hold onto your wallet. Sourcing re-work vendors and their services can require just as much homework, if not necessarily dollars, as with just-off-the-showroom-floor machines.

137 Industry News (May 2013)

The complete Industry News section from the May 2013 issue of Gear Technology

138 The Importance of Profile Shift, Root Angle Correction and Cutter Head Tilt (January/February 2016)

Chapter 2, Continued In the previous sections, development of conjugate, face milled as well as face hobbed bevel gearsets - including the application of profile and length crowning - was demonstrated. It was mentioned during that demonstration that in order to optimize the common surface area, where pinion and gear flanks have meshing contact (common flank working area), a profile shift must be introduced. This concluding section of chapter 2 explains the principle of profile shift; i.e. - how it is applied to bevel and hypoid gears and then expands on profile side shift, and the frequently used root angle correction which - from its gear theoretical understanding - is a variable profile shift that changes the shift factor along the face width. The end of this section elaborates on five different possibilities to tilt the face cutter head relative to the generating gear, in order to achieve interesting effects on the bevel gear flank form. This installment concludes chapter 2 of the Bevel Gear Technology book that lays the foundation of the following chapters, some of which also will be covered in this series.

139 Plastic Gearing Continues Converting the Unconverted (March/April 2016)

Plastic gears are everywhere today - throughout your car, at the oceans' lowest depths, in deep space. The question, when is a metal gear a candidate for plastic conversion, can be addressed in three words, i.e. what's the application?

140 UNIMILL for Prototype and Small-Batch Bevel Gear Manufacturing (August 2018)

UNIMILL is a milling method for the manufacture of prototype bevel gears using end mills or disk cutters.

141 Skiving is Thriving on a Global Scale (January/February 2018)

Call it new wine in old bottles, or old wine in new bottles, but gear skiving has certainly aged well over time. Gear skiving's evolution, perhaps gaining momentum most dramatically since around 2004, has ultimately led to rather dramatic technological advancement and cost saving in the manufacture of certain gears.

142 Skiving - A Manufacturing Renaissance (August 2017)

Skiving will be front and center when the gear industry comes together in Columbus this October. Attendees will find dedicated skiving equipment, multifunctional machines with skiving options and a slew of new cutting tools, machine designs and modifications to make the process more efficient and robust.

143 New Gear Technology at EMO Hannover 2017 (August 2017)

EMO is arguably the most important trade show when it comes to the introduction of machine tool technology, and this year's show - taking place from September 18-23 in Hannover, Germany - promises not to disappoint. We've talked to a number of gear manufacturing technology providers to give you a sneak peak of what you can expect to see if you attend this year.

144 Product News (September/October 2017)

Grinding fluids from Norton|Saint-Gobain, digital micrometer from Mahr, grinding centers from Haas Multigrind, updated software from KISSsoft.

145 GT Extras (August 2014)

See the latest online video from Gleason, plus explore the THORS Academy Gears Knowledge Center and our Back to Basics archive.

146 Product News - Gear Expo 2017 (November/December 2017)

This special edition of Product News includes highlights from Gear Expo 2017 of new products that caught the editors' eyes.

147 Friction Coefficient of Differently Treated Steel Surfaces (November/December 2017)

A reader asks about ion-nitride finished shafts and the proper friction coefficient to be used for calculations.

148 Three-Face Blade Technology (November/December 2017)

The author compares the standard two-face blade technology with the three-face blade technology for manufacturing bevel gears.

149 More Solutions, Greater Challenges (May 2018)

As coating technology improves to handle harsher conditions, cutting tool manufacturers are faced with new challenges during the resharpening process.

150 Large Gears, Better Inspection (July 2010)

Investment in Gleason GMM Series inspection equipment helps drive Milwaukee Gear's expansion into profitable new markets around the world—all hungry for high-precision custom gears and gear drives.

151 The Road to Reliability (May 2018)

Gear Industry Steps Up to Automation Challenges in Auto Industry. Automotive parts are always moving. They are zipping across conveyors, smashing into each other in bins and traveling across the production chain before ending up inside an automobile. For gears, this can be a somewhat precarious situation as they tend to run best when they're free from nicks, abrasions, cracks or other damages.

152 Cutting Down on Setup Time (June 2018)

With increasingly smaller returns from improving the speed of the actual gear grinding process, improving your setup time has become a primary way to keep improving efficiency. Here's the latest on how you can do that today.

153 Gleason Cutter Head Improves Tool Life and Productivity (November/December 2009)

The Pentac Plus is the latest generation of Gleason’s Pentac bevel gear cutting system. It is designed to allow much higher tool life and improved productivity, especially for cutters using multiple face blade geometry.

154 Gleason's Genesis 130SV Gear Shaving Machine (May/June 2006)

The 130SV shaving machine from Gleason is the newest of the company's Genesis family of gear production equipment.

155 Plastic Gear Design Remains a Work in Progress (July 2018)

Despite the development and availability of a number of newly engineered, rugged materials intended for plastic gear applications, some engineers/designers continue to believe metal is better.

156 Winds of Change (January/February 2008)

It seems that nothing can hold back the power of the wind—unless, of course, it's the availability of rugged, reliable, specially designed gearboxes. How Gleason is Keeping up with Demand.

157 Product News (January/February 2009)

The complete product news section from the January/February 2009 issue of Gear Technology, featuring giant-sized David Brown girth gears, gear inspection up to 4.5 meters and the latest Gleason gear grinder.

158 Product News (August 2018)

The complete Product News section from the August 2018 issue of Gear Technology.

159 MicroPulse and MicroShift for Ground Bevel Gearsets (July 2017)

Grinding of bevel and hypoid gears creates on the surface a roughness structure with lines that are parallel to the root. Imperfections of those lines often repeat on preceding teeth, leading to a magnification of the amplitudes above the tooth mesh frequency and their higher harmonics. This phenomenon is known in grinding and has led in many cylindrical gear applications to an additional finishing operation (honing). Until now, in bevel and hypoid gear grinding, a short time lapping of pinion and gear after the grinding operation, is the only possibility to change the surface structure from the strongly root line oriented roughness lines to a diffuse structure.

160 Surface Structure Shift for Ground Bevel Gears (June 2017)

Ground bevel and hypoid gears have a designed motion error that defines parts of their NVH behavior. The surface structure is defined by the hard finishing process.

161 Hard-Finishing Spiral Bevel Gears (March/April 2016)

Could you explain to me the difference between spiral bevel gear process face hobbing-lapping, face milling-grinding and Klingelnberg HPG? Which one is better for noise, load capacity and quality?

162 The Wait is Over for Lab-Level Shop Floor Inspection (July 2016)

Schafer Gear Works greatly reduces gear inspection queue time and adds precious capacity by installing Gleason's new "shop-hardened" 300GMS P gear inspection system.

163 Practical Gear Characteristics: Process Characteristics of the Most Popular Cutting Methods (March/April 2016)

The cutting process consists of either a roll only (only generating motion), a plunge only or a combination of plunging and rolling. The material removal and flank forming due to a pure generating motion is demonstrated in the simplified sketch in Figure 1 in four steps. In the start roll position (step 1), the cutter profile has not yet contacted the work. A rotation of the work around its axis (indicated by the rotation arrow) is coupled with a rotation of the cutter around the axis of the generating gear (indicated by the vertical arrow) and initiates a generating motion between the not-yet-existing tooth slot of the work and the cutter head (which symbolizes one tooth of the generating gear).

164 Industry News (March/April 2016)

News from around the Gear Industry

165 Product News (May 2016)

Latest news about upcoming products

166 Rules for Optimal Basic Design of Bevel Gears (May 2016)

Bevel Gear Technology Chapter 6

167 Hail to the Quick-Change King (June 2016)

It's the year of the quick-change tool. From chucks to mandrels, workholding manufacturers across the industry are seeing a continuing trend from their customers: give us more quickchange.

168 Bevel Gear Cutting Methods (June 2016)

THE FINAL CHAPTER This is the last in the series of chapters excerpted from Dr. Hermann J. Stadtfeld's Gleason Bevel Gear Technology - a book written for specialists in planning, engineering, gear design and manufacturing. The work also addresses the technical information needs of researchers, scientists and students who deal with the theory and practice of bevel gears and other angular gear systems. While all of the above groups are of course of invaluable importance to the gear industry, it is surely the students who hold the key to its future. And with that knowledge it is reassuring to hear from Dr. Stadtfeld of the enthusiastic response he has received from younger readers of these chapter installments.

169 Grinding, Finishing and Software Upgrades Abound (March/April 2011)

Machine tool companies are expanding capabilities to better accommodate the changing face of manufacturing. Customers want smaller-sized equipment to take up less valuable floor space, multifunctional machines that can handle a variety of operations and easy set-up changes that offer simplified operation and maintenance.

170 IMTS: Welcome to the Main Event (July 2016)

It's hard to think of a show more essential to attend than IMTS. It's the cornerstone event for the industry, the center of the universe for a week, the one show to rule them all.

171 Gear Design Deconstructed (May 2017)

How difficult is it to design a gear? It depends upon whom you ask.

172 Chamfering and Deburring - the Underrated Process (August 2016)

Chamfering and deburring of cylindrical gears does not get much love from manufacturers. The process is seen as a necessary evil since it is adding cost without adding value. However, there are good reasons for not underrating this important auxiliary process. Chamfering and deburring takes care of several issues which may come up during the manufacture of quality gears.

173 Product News (September/October 2016)

News on the latest products in the industry.

174 Product News (November/December 2016)

News about new Products in the Industry

175 Gear Shop of Tomorrow (November/December 2016)

It's Monday morning, December 15, 2036. An autonomous vehicle drops off two engineers in front of a gear manufacturing facility in Metro Detroit. They punch in for work on their wristwatches and pay Uber for the ride on a smartphone. One of the engineers begins walking the shop floor, monitoring a series of collaborative robots using a tablet the size of a paperback novel. These robots interact right on the floor with the minimal staff scheduled to oversee manufacturing operations. Another engineer wears an interactive headset and begins training a group of new engineers (in real time) from China using some form of augmented reality.

176 5-Axis Gear Manufacturing Gets Practical (March/April 2017)

Exciting new machine, cutting tool and software technologies are compelling many manufacturers to take a fresh look at producing their larger gears on machining centers. They're faster than ever, more flexible, easy to operate, highly affordable - and for any type of gear.

177 Industry News (March/April 2017)

Educational initiatives, company news, acquisitions and people in the industry are all featured this issue.

178 Product News (May 2017)

The latest from Liebherr, Gleason, Klingelnberg and more.

179 Upgrading Your Toolbox (May 2017)

Manufacturers focus on tool design, materials, coating, machine tool options and cutting parameters.

180 Industry News (May 2018)

The complete industry news section from the May 2018 issue of Gear Technology.

News Items About Gleason Metrology Systems

1 Gleason Introduces Gleason Metrology Systems (September 10, 2010)
Gleason Corporation recently announced that it has changed the name of its subsidiary in West Carrollton, Ohio from Gleason M&M Preci... Read News