power - Search Results

(SPONSORED CONTENT)

Articles About power


Articles are sorted by RELEVANCE. Sort by Date.

1 Load Distribution in Planetary Gears (May/June 2001)

Two-shaft planetary gear drives are power-branching transmissions, which lead the power from input to output shaft on several parallel ways. A part of the power is transferred loss-free as clutch power. That results in high efficiency and high power density. Those advantages can be used optimally only if an even distribution of load on the individual branches of power is ensured. Static over-constraint, manufacturing deviations and the internal dynamics of those transmission gears obstruct the load balance. With the help of complex simulation programs, it is possible today to predict the dynamic behavior of such gears. The results of those investigations consolidate the approximation equations for the calculation of the load factors...

2 High Power Transmission with Case-hardened Gears and Internal Power Branching (January/February 1985)

In the field of large power transmission gear units for heavy machine industry, the following two development trends have been highly influential: use of case hardened gears and a branching of the power flow through two or more ways.

3 Light-Weight Design for Planetary Gear Transmissions (September 2013)

There is a great need for future powertrains in automotive and industrial applications to improve upon their efficiency and power density while reducing their dynamic vibration and noise initiation. It is accepted that planetary gear transmissions have several advantages in comparison to conventional transmissions, such as a high power density due to the power division using several planet gears. This paper presents planetary gear transmissions, optimized in terms of efficiency, weight and volume.

4 Maximizing Power Density (August 2021)

Increasing the power density of a gearbox is often a design engineer’s primary goal.

5 Development of High-Hardness-Cast Gears for High-Power Mining Applications (January/February 2017)

Multiple possibilities are available to increase the transmissible power of girth gears. These solutions include: using a larger module, increasing of the gear diameter through the number of teeth, enlarging the face width, and increasing the hardness of the base material. The first three parameters are mostly limited by cutting machine capability. Module, outside diameter, and face width (for a cast gear) can theoretically be increased to infinity, but not the cutting machine dimensions. There are also practical limits with respect to the installation of very large diameter/large face width gears.

6 Why Monitor My Power Consumption (September/October 2017)

At first, monitoring the energy I use at my plant or the energy for each individual machine seemed trivial. Isn't this just an overhead cost I have to pay? I'm certainly not going to turn off a machine that costs too much to run when I have to get a job out for that month. Then, I realized how much savings there was for monitoring power consumption and the ROI was timely.

7 Rattle: Addressing Gear Noise in a Power Take-off (January/February 2012)

At Muncie Power, the objective of noise and vibration testing is to develop effective ways to eliminate power take-off (PTO) gear rattle, with specific emphasis on PTO products. The type of sound of largest concern in this industry is tonal.

8 Gear Applications All the Rage at Windpower 2010 (June 2010)

Capitalizing on a burgeoning new technology where gears are of great import, the gear community gathered en masse at the American Wind Energy Association’s Windpower Expo 2010.

9 Windpower 2009 Relocates in Light of Record Growth (January/February 2009)

It’s not too often a trade show so far surpasses organizers’ expectations for size that it must be relocated. This was just the dilemma the American Wind Energy Association (AWEA) faced with the Windpower 2009 Conference and Exhibition, which was originally scheduled to take place in Minneapolis, but will now be held at McCormick Place, Chicago.

10 Determining Power Losses in the Helical Gear Mesh (September/October 2005)

This article reviews mathematical models for individual components associated with power losses, such as windage, churning, sliding and rolling friction losses.

11 Flank Load Carrying Capacity and Power Loss Reduction by Minimized Lubrication (May 2011)

The objective of this study was to investigate the limits concerning possible reduction of lubricant quantity in gears that could be tolerated without detrimental effects on their load carrying capacity.

12 Drive Line Analysis for Tooth Contact Optimization of High-Power Spiral Bevel Gears (June/July 2011)

In the majority of spiral bevel gears, spherical crowning is used. The contact pattern is set to the center of the active tooth flank and the extent of the crowning is determined by experience. Feedback from service, as well as from full-torque bench tests of complete gear drives, has shown that this conventional design practice leads to loaded contact patterns, which are rarely optimal in location and extent. Oversized reliefs lead to small contact area, increased stresses and noise, whereas undersized reliefs result in an overly sensitive tooth contact.

13 Single Flank Measuring; Estimating Horsepower Capacity (September/October 1991)

Question: What is functional measurement and what is the best method for getting truthful answers?

14 Internet Adventures, Part II powertransmission.com (January/February 1997)

In July of 1996 we introduced the gear community to the Internet in these pages through the Gear Industry Home Page (GIHP). This electronic buyers guide for gear machine tools, tooling, accessories and services has proven to be more popular than we could have envisioned. In our first month, we had over 3,000 hits, and in our third month, we have over 4,500. By our fourth month, we topped the 7,000 mark, and we are on our way to 11,000 hits in November. As our advertisers develop their own home sites in order to offer layers of information about their companies, their products and services, we expect this activity will increase even more.

15 Full-Load Testing of Large Gearboxes Using Closed-Loop Power Circulation (September/October 1991)

This method of testing large gearboxes or, indeed, any power transmission element, had numerous advantages and offers the possibility of large savings in time, energy, and plant, if the overall situation is conducive to its use. This usually requires that several such units need to be tested, and that they can be conveniently connected to each to each other in such a way as to form a closed-loop drive train. No power sink is required, and the drive input system has only to make up power losses. The level of circulating power is controlled by the torque, which is applied statically during rotation, and the drive speed. Principles, advantage, and limitations are described, together with recent experiences in the only known large-scale usage of this technique in Australia.

16 A Model of the Pumping Action Between the Teeth of High-Speed Spur and Helical Gears (May/June 2004)

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.

17 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.

18 NOME Is Where The Energy Is (May 2016)

According to the U.K.-based WITT Energy website (witt-energy.com), "The WITT is the only device in the world that can capture energy from all movement and turn it into electricity. No other energy system can exploit the full spectrum of movement, enabling it to harvest power from water (sea, river or tidal), wind and human or animal motion."

19 MPIF Examines State of the Powder Metal Industry (September/October 2021)

Thanks to material development and additive manufacturing opportunities, it’s important for the gear and power transmission industries to monitor the trends, technologies and future forecasts in the powder metal market.

20 Low Loss Gears (June 2007)

In most transmission systems, one of the main power loss sources is the loaded gear mesh. In this article, the influences of gear geometry parameters on gear efficiency, load capacity, and excitation are shown.

21 Highlights from MPT Expo (September/October 2021)

At the recently held Motion+Power Technology Expo, we had the opportunity to sit down with a number of exhibitors to learn more about the latest in technology for the mechanical power transmission industry – including gear manufacturing machine tools, workholding, inspection equipment and much more.

22 Experimental Characterization of Bending Fatigue Strength in Gear Teeth (January/February 2003)

The effort described in this paper addresses a desire in the gear industry to increase power densities and reduce costs of geared transmissions. To achieve these objectives, new materials and manufacturing processes, utilized in the fabrication of gears, and being evaluated. In this effort, the first priority is to compare the performance of gears fabricated using current materials and processes. However, once that priority is satisfied, it rapidly transforms to requiring accurate design data to utilize these novel materials and processes. This paper describes the effort to address one aspect of this design data requirement.

23 Meet Me in St. Louis (July 2021)

The Gear Industry — and companies from the entire power transmission supply chain — will gather in-person at Motion + Power Technology Expo 2021

24 MPT EXPO 2021: Moving Industry Forward in Tough Times (September/October 2021)

On behalf of the AGMA Board of Directors, Show Committee and our 123 exhibiting companies — thank you for supporting Motion + Power Technology Expo 2021 (MPT Expo).

25 Show Stoppers (August 2019)

When you go to MPT Expo, make sure to visit the exhibitors in our special advertising section!

26 Tips for Increasing Power Density in Gear Trains (May/June 1999)

Gear designers today are continually challenged to provide more power in less space and improve gear performance. The following article looks at some of the most common ways to increase the power density or improve the performance of gear trains. The author also takes an in-depth look at the case of a steel worm mating with a plastic helical gear and explores ways to optimize this increasingly common configuration.

27 A Shifting Status Quo (August 2021)

What’s New and What’s Next at Motion + Power Technology Expo?

28 MPT Expo is all about Learning (August 2019)

In addition to hundreds of relevant suppliers, Motion+Power Technology Expo (Oct. 15-17 in Detroit) also offers many opportunities for learning.

29 What the Internet Means To Your Gear Business (July/August 1998)

Let's face it. The Internet is still, to many of us, exciting, confusing, terrifying and frustrating by turns. The buzzwords change so fast that even the most high tech companies have a hard time keeping up. Cyberspace. Firewall, Java. E-commerce. The list goes on.

30 Gear Show 4.0 (August 2019)

There have always been plenty of reasons to attend Gear Expo. For decades, it’s been the best place to see all of the technology, vendors and solutions in the gear industry, all under one roof. Now that it's the Motion + Power Technology Expo, it's even more true.

31 What's In a Name (March/April 2019)

As most of you know by now, the trade show formerly known as Gear Expo is now the Motion + Power Technology Expo. If you're a gear-industry veteran, you might be confused by this change. If you've been coming to the show for years - or exhibiting at it - you might even feel a little betrayed. But I'm here to tell you it's going to be alright.

32 Industry News (September/October 2018)

Liebherr and Wenzel announce sales and service agreement; MPIF releases new powder metal standard; Gear Motions announces promotions; Profilator opens new factory and more gear industry news.

33 Wind Turbine Gearbox Reliability (June 2017)

A high number of wind turbine gearboxes do not meet their expected design life, despite meeting the design criteria of current bearing, gear and wind turbine industry standards and certifications.

34 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.

35 Industry News (October 2013)

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

36 Reaching Out (March/April 2011)

Publisher Michael Goldstein describes the success of Gear Technology's new e-mail newsletter programs.

37 Going to Gear Expo (September 2013)

Like many of you in the gear industry, we’ve been working extremely hard over the past few months getting ready for Gear Expo 2013, which takes place September 17-19 in Indianapolis.

38 Coated Gears Provide Slick Solution for Human-Powered Boat (January/February 1997)

Design Problem: Develop a gear drive for a pedal-powered water craft that will be easy to manufacture, use and maintain; that will be lightweight enough for the boat to be portable; and that will eliminate the environmental risk of lubricants leaking into the water.

39 Cylkro Gears: An Alternative in Mechanical Power Transmission (May/June 1996)

Bevel gears have been the standard for several decades in situations where power transmission has to occur between shafts mounted at a given angle. Now a new approach has been developed that challenges the bevel gear's de facto monopoly in such applications. The concept is based on the principle of the crown gear; i.e., a cylindrical pinion mates with a face gear. Crown Gear B.V. in Enschede, Holland, is the developer of these specialty gear teeth, which are marketed under the trade name Cylkro.

40 Deburring & Finishing Gears with Power Brushes (March/April 1989)

Why Brushes? In this age of hi-tech, robots, automatic machines, machining cells, etc., is there a niche somewhere for power brushes? Let me answer by asking another question. What tool does the gear manufacturer have in his arsenal that allows him to deburr green gears, hardened gears, hobbed gears, ground gears and shaved gears? What tool allows him to deburr powder metal gears - green and sintered - brass gears, bronze gears, stainless gears made of exotic materials such as inconel, waspaloy, or hastaloy, and fiber and plastic gears? How about spur gears, helical gears, sprockets, both internal and external splines, clutch teeth and pump gears?

41 Fatigue Aspects of Case Hardened Gears (March/April 1999)

The efficient and reliable transmission of mechanical power continues, as always, to be a central area of concern and study in mechanical engineering. The transmission of power involves the interaction of forces which are transmitted by specially developed components. These components must, in turn, withstand the complex and powerful stresses developed by the forces involved. Gear teeth transmit loads through a complex process of positive sliding, rolling and negative sliding of the contacting surfaces. This contact is responsible for both the development of bending stresses at the root of the gear teeth and the contact stresses a the contacting flanks.

42 Space Station Solar Power Compromised by Balky SARJ Unit (March/April 2008)

Undue vibrations, power spikes and grit give NASA pause.

43 A Planetary System that Increases Power Density (January/February 2005)

Turnkey Design Services is manufacturing a planetary gear system to increase power density.

44 Innovative Concepts for Grinding Wind Power Energy Gears (June 2009)

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.

45 Net-Shape Forged Gears - The State of the Art (January/February 2002)

Traditionally, high-quality gears are cut to shape from forged blanks. Great accuracy can be obtained through shaving and grinding of tooth forms, enhancing the power capacity, life and quietness of geared power transmissions. In the 1950s, a process was developed for forging gears with teeth that requires little or no metal to be removed to achieve final geometry. The initial process development was undertaken in Germany for the manufacture of bevel gears for automobile differentials and was stimulated by the lack of available gear cutting equipment at that time. Later attention has turned to the forging of spur and helical gears, which are more difficult to form due to the radial disposition of their teeth compared with bevel gears. The main driver of these developments, in common with most component manufacturing, is cost. Forming gears rather than cutting them results in increased yield from raw material and also can increase productivity. Forging gears is therefore of greater advantage for large batch quantities, such as required by the automotive industry.

46 New Guideline for Determining the Reliability of Planetary/Spur Gear Units (May 2020)

In the wind power industry, the reliability of powertrain components plays a major role. Especially in multi-megawatt offshore applications, an unplanned replacement of drivetrain components can lead to extremely high costs. Hence, the expectation of wind farm operators is to forecast the system reliability. Under the leadership of the VDMA (Mechanical Engineering Industry Association), the standardization paper 23904 "Reliability Assessment for Wind Turbines" was published in October 2019.

47 Gear Backlash Analysis of Unloaded Gear Pairs in Transmissions (June 2016)

A best practice in gear design is to limit the amount of backlash to a minimum value needed to accommodate manufacturing tolerances, misalignments, and deflections, in order to prevent the non-driving side of the teeth to make contact and rattle. Industry standards, such as ANSI/AGMA 2002 and DIN3967, provide reference values of minimum backlash to be used in the gear design. However, increased customers' expectations in vehicle noise eduction have pushed backlash and allowable manufacturing tolerances to even lower limits. This is especially true in the truck market, where engines are quieter because they run at lower speeds to improve fuel economy, but they quite often run at high torsional vibration levels. Furthermore, gear and shaft arrangements in truck transmissions have become more complex due to increased number of speeds and to improve efficiency. Determining the minimum amount of backlash is quite a challenge. This paper presents an investigation of minimum backlash values of helical gear teeth applied to a light-duty pickup truck transmission. An analytical model was developed to calculate backlash limits of each gear pair when not transmitting load, and thus susceptible to generate rattle noise, through different transmission power paths. A statistical approach (Monte Carlo) was used since a significant number of factors affect backlash, such as tooth thickness variation; center distance variation; lead; runout and pitch variations; bearing clearances; spline clearances; and shaft deflections and misalignments. Analytical results identified the critical gear pair, and power path, which was confirmed experimentally on a transmission. The approach presented in this paper can be useful to design gear pairs with a minimum amount of backlash, to prevent double flank contact and to help reduce rattle noise to lowest levels.

48 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.

49 Practical Analysis of Highly-Loaded Gears by Using the Modified-Scoring Index Calculation Method (September/October 1986)

The power of high speed gears for use in the petrochemical industry and power stations is always increasing. Today gears with ratings of up to 70,000kW are already in service. For such gears, the failure mode of scoring can become the limiting constraint. The validity of an analytical method to predict scoring resistance is, therefore, becoming increasingly important.

50 Give Your Gears a Break - Select the Right Coupling! (May/June 1987)

How important is the right choice of coupling in determining successful machine design? Consider the following example. A transmission of appropriate size was needed to transfer the speed of the engine driver to that of the driven generator. The transmission was properly selected and sized to endure the rated power requirements indefinitely, but after only a short time in operation, it failed anyway. What happened? The culprit in the case was a coupling. It provided the necessary power and protection against misalignment but it lacked the ability to isolate the gears from the torque peaks of the diesel engine.

51 Spur Gear Fundamentals (January/February 1989)

Gears are toothed wheels used primarily to transmit motion and power between rotating shafts. Gearing is an assembly of two or more gears. The most durable of all mechanical drives, gearing can transmit high power at efficiencies approaching 0.99 and with long service life. As precision machine elements gears must be designed.

52 Effects of Planetary Gear Ratio on Mean Service Life (July/August 1998)

Planetary gear transmissions are compact, high-power speed reducers that use parallel load paths. The range of possible reduction ratios is bounded from below and above by limits on the relative size of the planet gears. For a single-plane transmission, the planet gear has no size of the sun and ring. Which ratio is best for a planetary reduction can be resolved by studying a series of optimal designs. In this series, each design is obtained by maximizing the service life for a planetary transmission with a fixed size, gear ratio, input speed, power and materials. The planetary gear reduction service life is modeled as a function of the two-parameter Weibull distributed service lives of the bearings and gears in the reduction. Planet bearing life strongly influences the optimal reduction lives, which point to an optimal planetary reduction ratio in the neighborhood of four to five.

53 The Beginner's Guide to Powder Metal Gears (September/October 1995)

Increasingly gear designers and product engineers are capitalizing on the economic advantages of powder metallurgy (P/M) for new and existing gear applications. Powder metal gears are found in automobiles, outdoor power equipment transmissions and office machinery applications as well as power hand tools, appliances and medial components.

54 Three Things Needed from Every Power Transmission Company (May 2021)

In our association, we might be suppliers, partners, customers or competitors, but in the end, we are one industry — and now is the time when we need to come together and move the industry forward.”

55 Setting Load Parameters for Viable Fatigue Testing of Gears in Powertrain Axles Part I: Single-Reduction Axles (August 2014)

This presentation introduces a new procedure that - derived from exact calculations - aids in determining the parameters of the validation testing of spiral bevel and hypoid gears in single-reduction axles.

56 Performance and Machining of Advanced Engineering Steels in Power Transmission Applications - Continued Developments (May 2017)

It is becoming increasingly apparent that material properties can and will play a greater role than before in addressing the challenges most transmission manufacturers are facing today. Making use of materials' intrinsic fatigue properties provides a new design tool to support the market changes taking place.

57 Talking Truth to Power: Plastic Gears Taking Back Seat to No One (March/April 2013)

Automotive industry embraces proven yet evolving technology of plastic gears.

58 SARJ Repairs Show Promise for Space Station Solar Power (January/February 2009)

Much has happened since we last reported on the malfunctioning solar array rotary joint (SARJ) attached to the International Space Station. Space shuttle Endeavour dropped in for a two-week visit in November during which repairs were made and invaluable data collected.

59 The New Power Generation--With All Eyes on Washington, U.S. Wind Industry Seeks Expansion (January/February 2008)

Long before oil, climate change and energy demand were making headlines in Washington, Minnesota State Auditor Rebecca Otto and her husband installed a wind energy system on their property in Minnesota.

60 The Staying Power of Low-Pressure Carburizing (September/October 2008)

Open any heat treating journal today and you’re certain to find multiple references (articles, technical papers and/or advertisements) promoting low-pressure carburizing (LPC). The uninformed might breeze by these references thinking it’s the next flash-in-the-pan, but unlike in the past, this time the process has legs.

61 An Experimental Study on the Effect of Power Honing on Gear Surface Topography (January/February 1999)

Gear noise associated with tooth surface topography is a fundamental problem in many applications. Operations such as shaving, gear grinding and gear honing are usually used to finish the gear surface. Often, gears have to be treated by a combination of these operations, e.g. grinding and honing. This is because gear honing operations do not remove enough stock although they do create a surface lay favorable for quiet operation. See Fig. 1 for typical honing process characteristics. Gear grinding processes, on the other hand, do remove stock efficiently but create a noisy surface lay.

62 Gear Up for Performance: An Introduction to Synthetic Lubricants for Fractional Horespower Applications (September/October 2000)

Editor's Note: The following article details the advantages of synthetic lubricants in certain applications. However, the user should be aware of certain design issues arising from the extract chemistry of the synthetic. For example, some synthetics may have low solvency for additives. Others may not be compatible with mineral oils or nonmetallic components such as seals and paints. Some synthetics may absorb water and may not have the same corrosion resistance as mineral oils. Finally, the user should consider biodegradability or toxicity before switching to any new lubricant. Many of these concerns are present in petroleum-based lubricants as well, so consult a lubrication specialist before specifying a lubricant.

63 Water Powered Machinery (January/February 2001)

In one of my many visits to northern New York state, which included the St. Lawrence River (Thousand Islands Region) and the Adirondack Mountains, I visited Croghan, a village on the Beaver River, which is fed by the Stillwater Resevoir in the Adirondack Mountains. At the base of a dam within the village, I found the remnants of a water turbine and a bevel gear drive system. Having worked for The Gleason Works for many years, I was intrigued by the remains of the bevel gears, which appeared to have had wooden teeth at one time.

64 Gear Surface Durability Development to Enhance Transmission Power Density (July/August 2002)

Gear pitting is one of the primary failure modes of automotive transmission gear sets. Over the past years, many alternatives have been intended to improve their gear surface durability. However, due to the nature of new process development, it takes a length of time and joint efforts between the development team and suppliers to investigate and verify each new approach.

65 How to Minimize Power Losses in Transmissions, Axles and Steering Systems (September 2012)

By increasing the number of gears and the transmission-ratio spread, the engine will run with better fuel efficiency and without loss of driving dynamics. Transmission efficiency itself can be improved by: using fuelefficient transmission oil; optimizing the lubrication systems and pumps; improving shifting strategies and optimizing gearings; and optimizing bearings and seals/gaskets.

66 Plastic Gear Design Basics (July/August 1996)

Plastic gears are serious alternatives to traditional metal gears in a wide variety of applications. The use of plastic gears has expanded from low-power, precision motion transmission into more demanding power transmission applications. As designers push the limits of acceptable plastic gear applications, more is learned about the behavior of plastics in gearing and how to take advantage of their unique characteristics.

67 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.

68 Influence of Topography Deviations on the Psychoacoustic Evaluation of Ground Bevel Gears (November/December 2016)

In the design process of transmissions, one major criterion is the resulting noise emission of the powertrain due to gear excitation. Within the past years, much investigation has shown that the noise emission can be attributed to quasi-static transmission error. Therefore, the transmission error can be used for a tooth contact analysis in the design process, as well as a characteristic value for quality assurance by experimental inspections.

69 Evaluation of Carburized & Ground Face Gears (September/October 2000)

Designers are constantly searching for ways to reduce rotocraft drive system weight. Reduced weight can increase the payload, performance, or power density of current and future systems. One example of helicopter transmission weight reduction was initiated as part of the United States Army Advanced Rotocraft Transmission program. This example used a split-torque, face-gear configuration concept (Ref. 1). compared to a conventional design with spiral-bevel gears, the split-torque, face-gear design showed substantial weight savings benefits. Also, the use of face gears allows a wide-range of possible configurations with technical and economic benefits (Ref. 2).

70 Management on the High Seas (May/June 2000)

Most Navy brass would say that Commander D. Michael Abrashoff ran a loose ship. But his style of empowering his crew by delegating authority is changing the way the Navy thinks about management. His speech at the recent annual meeting of the American Gear Manufacturers Association offered a simple, common-sense approach that can be applied not only to running a ship, but also to gear manufacturing or any other industry.

71 Design for Silence: New Concepts and Techniques for Industrial Gears (September/October 1999)

For a long time, relatively high noise levels have been generally accepted for industrial gear units in the 10-100 kW power range. However, due to changing environmental awareness - both in and around industrial sites - customers expectations have moved drastically towards low noise as a key differentiating factor.

72 Cleaner Steels Provide Gear Design Opportunities (November/December 2017)

Gear designers face constant pressure to increase power density in their drivetrains. In the automotive industry, for example, typical engine torque has increased significantly over the last several decades. Meanwhile, the demands for greater fuel efficiency mean designers must accommodate these increased loads in a smaller, more lightweight package than ever before. In addition, electric and hybrid vehicles will feature fewer gears, with fewer transmission speeds, running at higher rpms, meaning the gears in those systems will have to endure life cycles far beyond what is typical with internal combustion engines.

73 Powder Metallurgy Innovations (September/October 1999)

Powder metal. To gear makers today, the phrase conjures images of low power applications in non-critical systems. As powder metal technology advances, as the materials increase in density and strength, such opinions are changing. It is an ongoing, evolutionary process and one that will continue for some time. According to Donald G. White, the executive director of the Metal Powder Industries Federation, in his State-of-the-P/M Industry - 1999 report. "The P/M world is changing rapidly and P/M needs to be recognized as a world-class process - national, continental and even human barriers and prejudices must be eliminated - we must join forces as a world process - unified in approach and goals."

74 Myths and Miracles of Gear Coating (July/August 1999)

Three years ago, coated gears seemed to be the perfect solution for the Micro Marine Corporation. The early designs for the gear drive of their MicroCAT human-powered boat used a combination of thin-film dry gear coatings with lubrication and wear-resistance properties. These coatings simplified their design, provided corrosion resistance, made the gear drive environmentally safe and eliminated the need for gear drive lubrication and maintenance. It was a success story in the making.

75 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.

76 A New Approach to Heat Treating Parts Washing (March/April 1999)

New innovations in the management of hear treating parts washers and yielding powerful, unexpected benefits. Simply, cost effective shop floor practices are being combined in new ways to deliver big quality improvements and significant help to the bottom line. Employing these steps early in the process can dramatically cut waste hauling expenses and greatly reduce environmental liabilities while continuously producing cleaner parts.

77 Analysis of Excitation Behavior of Two-Stage Gearbox Based Upon Validated Simulation Model (September/October 2017)

In order to reduce costs for development and production, the objective in gearbox development and design is to predict running and noise behavior of a gearbox without manufacturing a prototype and running expensive experimental investigations. To achieve this objective, powerful simulation models have to be set up in a first step. Afterwards, those models have to be qualified and compared to experimental investigations. During the investigation procedure of gearboxes, there are two possibilities to evaluate the running and noise behavior: quasi-static and dynamic investigations. In times of engine downsizing, e-mobility and lightweight design, the dynamic excitation behavior is becoming increasingly important.

78 Gears on the Firing Line (November/December 1998)

Air compressors are a good example of industrial machinery with components that rotate at very high speeds, up to 80,000 rpm. They are subject to very high rotational forces and often variable loads. Strong, high-precision gears for the power transmission trains that drive the impellers are critical components of machinery operating under such conditions.

79 Optimal Polymer Gear Design: Metal-to-Plastic Conversion (May 2020)

Nowadays, the progress in polymer materials and injection molding processing has enabled a drastic expansion of plastic gear applications. They are used not only for lightly loaded motion transmissions, but also in moderately loaded power drives in automotive, agriculture, medical, robotics, and many other industries.

80 Gear Crack Propagation Investigations (November/December 1997)

A common design goal for gears in helicopter or turboprop power transmission is reduced weight. To help meet this goal, some gear designs use thin rims. Rims that are too thin, however, may lead to bending fatigue problems and cracks. The most common methods of gear design and analysis are based on standards published by the American Gear Manufacturers Association. Included in the standards are rating formulas for gear tooth bending to prevent crack initiation (Ref. 1). These standards can include the effect of rim thickness on tooth bending fatigue (Ref 2.). The standards, however, do not indicate the crack propagation path or the remaining life once a crack has started. Fracture mechanics has developed into a useful discipline for predicting strength and life of cracked structures.

81 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.

82 Ironclad Gears (July/August 1997)

This issue of Addendum is dedicated to gears that have served their country. There have been many, but among the most significant are surely those at work during the Civil War, when their application changed the nature of naval warfare forever. It's time to recall that role, namely, powering the revolving turret of the U.S.S. Monitor, one of the first "ironclad" vessels.

83 Standard Issues (November/December 1996)

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.

84 Gear Noise As a Result of Nicks, Burrs and Scale - What Can Be Done (July/August 1996)

There are many different causes of gear noise, all of them theoretically preventable. Unfortunately, the prevention methods can be costly, both in equipment and manpower. If the design of the gear and its application are appropriate, in theory all that is necessary is to have a tight control on the process of producing the finished gear. In reality, there are many variables that can cause a process, no matter how well-controlled, to deteriorate, and thus cause errors, some of which will cause a gear to produce unwanted noise when put to use.

85 Effects of Different Shot Peening Treatments in Combination with a Superfinishing Process on the Surface Durability of Case-Hardened Gears (March/April 2021)

How the increasing demands on power transmission and reduction in mass of modern gearboxes lead to gear designs that are close to their load-carrying capacity limits.

86 Parallel Axis Gear Grinding: Theory & Application (November/December 2000)

The goal of gear drive design is to transit power and motion with constant angular velocity. Current trends in gear drive design require greater load carrying capacity and increased service life in smaller, quieter, more efficient gearboxes. Generally, these goals are met by specifying more accurate gears. This, combined with the availability of user-friendly CNC gear grinding equipment, has increased the use of ground gears.

87 Out of the Cave: Returning the Personal Touch to Business (March/April 2001)

Ever since the first cavemen bartered clamshells and spears, business has been about people interacting. In simpler times, commerce was conducted according to the look in someone's eye or the feel of his handshake. Today we have computers, fax machines, modems, e-mail and cell phones - all powerful tools that have increased our productivity. Those devices have shrunk our world, but, in some ways, they've also distanced us from each other by reducing personal interaction. In the name of efficiency, profitability and progress, we've found ways to place orders, sell products and exchange information without ever coming into contact with another human being.

88 What Was He Thinking (August 2016)

Having read about an automobile race in France, Kohlsaat decided he'd host America's first auto race in Chicago. The year was 1895 and automobiles were still a great curiosity. Kohlsaat, owner/publisher of the Chicago Times Herald, planned to exploit the growing interest in motoring by sponsoring a 54-mile race from downtown Chicago to nearby suburb Evanston, Illinois, and back. The match was open to all comers, foreign or domestic, whether powered by gas, electricity, or steam. The top prize: $2,000 (that's 50,000 2016 dollars).

89 Design and Optimization of Planetary Gears Considering All Relevant Influences (November/December 2013)

Light-weight construction and consideration of available resources result in gearbox designs with high load capacity and power density. At the same time, expectations for gear reliability are high. Additionally, there is a diversity of planetary gears for different applications.

90 Improved Broaching Steel Technology (July 2016)

Broaching is a machining technique commonly used to cut gear teeth or cam profiles for the high volume manufacture of power transmission parts used in vehicles (Refs. 1–2). This article shows how the right gear blank material can make all the difference if you want to get more parts out of each tool.

91 Inclusion-Based Bending Strength Calculation of Gears (May 2017)

Reduced component weight and ever-increasing power density require a gear design on the border area of material capacity. In order to exploit the potential offered by modern construction materials, calculation methods for component strength must rely on a deeper understanding of fracture and material mechanics in contrast to empirical-analytical approaches.

92 Noise Reduction in an EV Hub Drive Using a Full Test and Simulation Methodology (May 2016)

With the ongoing push towards electric vehicles (EVs), there is likely to be increasing focus on the noise impact of the gearing required for the transmission of power from the (high-speed) electric motor to the road. Understanding automotive noise, vibration and harshness (NVH) and methodologies for total in-vehicle noise presupposes relatively large, internal combustion (IC) contributions, compared to gear noise. Further, it may be advantageous to run the electric motors at significantly higher rotational speed than conventional automotive IC engines, sending geartrains into yet higher speed ranges. Thus the move to EV or hybrid electric vehicles (HEVs) places greater or different demands on geartrain noise. This work combines both a traditional NVH approach (in-vehicle and rig noise, waterfall plots, Campbell diagrams and Fourier analysis) - with highly detailed transmission error measurement and simulation of the complete drivetrain - to fully understand noise sources within an EV hub drive. A detailed methodology is presented, combining both a full series of tests and advanced simulation to troubleshoot and optimize an EV hub drive for noise reduction.

93 The Modern Approach to Transmission System Design and Analysis (September/October 2015)

Over the last 15 years, there has been significant growth in the number of transmission types as well as their complexity: manual, conventional automatic, dual clutch, automated manual, continuously variable, split power and pure EV transmissions.

94 Test Facility Simulation Results for Aerospace Loss-of-Lubrication of Spur Gears (June 2015)

Prior to receiving airworthiness certification, extensive testing is required during the development of rotary wing aircraft drive systems. Many of these tests are conducted to demonstrate the drive system’s ability to operate at extreme conditions, i.e. — beyond that called for in the normal to maximum power operating range.

95 3-D Printing: We Ain't Seen Nothing Yet (March/April 2015)

NASA is now 3-D-printing spare parts up at the ISS (International Space Station). And in zero-gravity environments. And some of these parts are small gears and actuators, for starters. Every indication is that the list of power transmission-type parts to be converted will soon grow.

96 Honing of Gears (August 2014)

The honing of gears - by definition - facilitates ease of operation, low noise and smoother performance in a transmission. Honing also contributes to reduced friction in the powertrain. Both the intense cutting (roughing process) as well as the functionally fine- finishing of transmission gears can be performed in one setup, on one machine.

97 Gear Standards and ISO GPS (October 2013)

In today’s globalized manufacturing, all industrial products having dimensional constraints must undergo conformity specifications assessments on a regular basis. Consequently, (standardization) associated with GD&T (geometrical dimensioning and tolerancing) should be un-ambiguous and based on common, accepted rules. Of course gears - and their mechanical assemblies - are special items, widely present in industrial applications where energy conversion and power transmission are involved.

98 Gearbox Field Performance From a Rebuilder's Perspective (May/June 2001)

The major focus of the American Gear Manufacturers Association standards activity has been the accurate determination of a gearbox's ability to transmit a specified amount of power for a given amount of time. The need for a "level playing field" in the critical arena was one of the reasons the association was formed in the first place. Over the past 85 years, AGMA committees have spent countless hours "discussing" the best ways to calculate the rating of a gear set, often arguing vigorously over factors that varied the resulting answers by fractions of a percentage point. While all that "science" was being debated in test labs and conference rooms all over the country, out industry's customers were conducting their own experiments through the daily operation of gear-driven equipment of all types.

99 Liebherr LFG Grinding Machine (May 2013)

This machine concept facilitates highly productive profile grinding for large workpieces. The range for external and internal gears comprises models for manufacturing workpieces up to 2,000 millimeters – for industrial gear units, wind power, and marine propulsion applications

100 Large Pinions for Open Gears - The Increase of Single Mesh Load (January/February 2013)

This paper introduces mandatory improvements in design, manufacturing and inspection - from material elaboration to final machining - with special focus on today's large and powerful gearing.

101 Cutting Hardened Gears (November/December 2002)

The need for improved power transmissions that use gears and gearboxes with smaller overall dimensions and with lower noise generation has left manufacturing engineers searching for different methods of gear processing. This search has led to the requirement of hardened gears.

102 Contact Fatigue Characterization of Through-Hardened Steel for Low-Speed Applications like Hoisting (July 2017)

In several applications like hoisting equipment and cranes, open gears are used to transmit power at rather low speeds (tangential velocity < 1m/s) with lubrication by grease. In consequence those applications have particularities in terms of lubricating conditions and friction involved, pairing of material between pinion and gear wheel, lubricant supply, loading cycles and behavior of materials with significant contact pressure due to lower number of cycles.

103 Wear Protection for Gears (March/April 1996)

Several trends in mechanical engineering are leading to greater surface stress on components and thus to unacceptable wear. These trends include greater stresses due to increased power densities; the need to maintain high precision of components throughout their service life; and the environmental imperative to reduce use of lubricants and additives.

104 Failure Mechanisms in Plastic Gears (January/February 2002)

Plastics as gear materials represent an interesting development for gearing because they offer high strength-to-weight ratios, ease of manufacture and excellent tribological properties (Refs. 1-7). In particular, there is a sound prospect that plastic gears can be applied for power transmission of up to 10 kW (Ref. 6).

105 What's New and Noteworthy in Powder Metal (September/October 2017)

First, the facts: powder metallurgy is a cost-effective method of forming precision net-shape metal components that allows for more efficiently designed products. It saves valuable raw materials through recycling and the elimination of costly secondary-machining. PM competes with wrought steel gears as the technology continues to advance. You'll find PM components in everything from automobile transmissions to aircraft turbine engines, surgical equipment and power tools.

106 Face Gears: An Interesting Alternative for Special Applications - Calculation, Production and Use (September/October 2001)

Crown gearings are not a new type of gear system. On the contrary, they have been in use since very early times for various tasks. Their earliest form is that of the driving sprocket, found in ancient Roman watermills or Dutch windmills. The first principles of gear geometry and simple methods of production (shaper cutting) were developed in the 1940s. In the 1950s, however, crown gears' importance declined. Their tasks were, for example, taken over by bevel gears, which were easier to manufacture and could transmit greater power. Current subject literature accordingly contains very little information on crown gears, directed mainly to pointing out their limitations (Ref. 1).

107 Direct Gear Design for Spur and Helical Involute Gears (September/October 2002)

Modern gear design is generally based on standard tools. This makes gear design quite simple (almost like selecting fasteners), economical, and available for everyone, reducing tooling expenses and inventory. At the same time, it is well known that universal standard tools provide gears with less than optimum performance and - in some cases - do not allow for finding acceptable gear solutions. Application specifies, including low noise and vibration, high density of power transmission (lighter weight, smaller size) and others, require gears with nonstandard parameters. That's why, for example, aviation gear transmissions use tool profiles with custom proportions, such as pressure angle, addendum, and whole depth. The following considerations make application of nonstandard gears suitable and cost-efficient:

108 Get Your Geek on at Edmund Scientific (July 2010)

A treasure trove of gear and power components for aspiring engineers and dedicated hobbyists.

109 A Huge Success (September/October 1995)

Sivyer Steel Corporation, Bettendorf, IA, an ISO-9002-certified casting specialist, is familiar with tackling tough jobs. The company has built an international reputation as a supplier of high-integrity castings, especially those which require engineering and/or full machining. Its not unusual for Sivyer's customers, especially those in the mining, recycling, power generation, valve and nuclear fields, to ask the foundry to produce a one-of-a-kind casting - often something revolutionary - but AnClyde Engineered Products' request was a special challenge, even for Sivyer.

110 CFD Technology for Rotorcraft Gearbox Windage Aerodynamics Simulation (August 2009)

A computational fluid dynamics (CFD) method is adapted, validated and applied to spinning gear systems with emphasis on predicting windage losses. Several spur gears and a disc are studied. The CFD simulations return good agreement with measured windage power loss.

111 Comparison of Surface Durability & Dynamic Performance of Powder Metal & Steel Gears (September/October 1995)

Surface-hardened, sintered powder metal gears are increasingly used in power transmissions to reduce the cost of gear production. One important problem is how to design with surface durability, given the porous nature of sintered gears. Many articles have been written about mechanical characteristics, such as tensile and bending strength, of sintered materials, and it is well-known that the pores existing on and below their surfaces affect their characteristics (Refs. 1-3). Power transmission gears are frequently employed under conditions of high speed and high load, and tooth surfaces are in contact with each other under a sliding-rolling contact condition. Therefore it is necessary to consider not only their mechanical, but also their tribological characteristics when designing sintered gears for surface durability.

112 Tapping into the Wind Gearbox Supply Chain (January/February 2010)

Although typically considered a late bloomer in the call to wind energy arms, the United States is now the number one wind power producer in the world with over 25,000 MW installed by the end of 2008, according to the Global Wind Energy Council in January 2009.

113 Distortion Control by Innovative Heat Treating Technologies in the Automotive Industry (August 2008)

The proper control of distortion after thermal treatment of powertrain components in the automotive industry is an important measure in ensuring high-quality parts and minimizing subsequent hard machining processes in order to reduce overall production costs.

114 Just a Bad Dream (May 2008)

There's a monster under the bed of the nation's economy. It has the same power over many adults as a child's nightmare.

115 Latest Generation of Quieter Plastic Gears Can Take the Heat (November/December 2005)

Ten years ago, most mainstream gear manufacturers didn't even consider plastics as an option, especially in higher power applications.

116 Marine Gears: Special Aspects for High Performance (May/June 2006)

A gearbox that absorbs 30 percent of external forces, transmits power from two engines operating at different speeds, and uses gears that meet several design and specification standards at the same time...

117 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.

118 A Further Study on High-Contact-Ratio Spur Gears in Mesh with Double-Scope Tooth Profile Modification (November/December 2008)

This paper will demonstrate that, unlike commonly used low-contact-ratio spur gears, high-contact-ratio spur gears can provide higher power-to-weight ratio, and can also achieve smoother running with lower transmission error (TE) variations.

119 Gear Tooth Scoring Design Considerations for Spur and Helical Gearing (May/June 1985)

High speed gearing, operating with low viscosity lubricants, is prone to a failure mode called scoring. In contrast to the classic failure modes, pitting and breakage, which generally take time to develop, scoring occurs early in the operation of a gear set and can be the limiting factor in the gear's power capability.

120 Bending Fatigue, Impact and Pitting Resistance of Ausform-Finished PM Gears (June 2010)

The powder metal (P/M) process is making inroads in automotive transmission applications due to substantially lower costs of P/M-steel components for high-volume production, as compared to wrought or forged steel parts. Although P/M gears are increasingly used in powered hand tools, gear pumps and as accessory components in automotive transmissions, P/M-steel gears are currently in limited use in vehicle transmission applications. The primary objective of this project was to develop high-strength P/M-steel gears with bending fatigue, impact resistance and pitting fatigue performance equivalent to current wrought steel gears.

121 A Winding Path into the Gear Industry: Falk Corp. (July/August 2004)

Glancing back now, The Falk Corp. looks to have had a straight path toward power transmission when it opened in 1892.

122 The Effect of Superfinishing on Gear Micropitting (March/April 2009)

Results from the Technical University of Munich were presented in a previous technical article (see Ref. 4). This paper presents the results of Ruhr University Bochum. Both research groups concluded that superfinishing is one of the most powerful technologies for significantly increasing the load-carrying capacity of gear flanks.

123 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.

124 Grinding Gears for Racing Transmissions (September/October 2009)

When you push 850 horsepower and 9,000 rpm through a racing transmission, you better hope it stands up. Transmission cases and gears strewn all over the racetrack do nothing to enhance your standing, nor that of your transmission supplier.

125 Philly Gear: A Long Life, A New Direction (January/February 2004)

Large marine gearboxes. More than a year in production, each weighing 125,000 pounds, the gearboxes were for U.S. Navy amphibious ships, for combining the power of 10,000 hp diesel engines to drive propeller shafts. They were also the last major gear products shipped from Philadelphia Gear Corp.’s King of Prussia factory.

126 Understanding Fluid Flow to Improve Lubrication Efficiency (January/February 2004)

Excess lubricant supply in gearing contributes to power loss due to churning as well as the requirements of the lubrication system itself. Normally, a much larger amount of oil than required is used for cooling because so much of it is thrown away by centrifugal force. To lower the amount of lubricant required and reduce those losses, it is necessary to discover the ideal location of the supplying nozzle.

127 Gear Grinding 2003 (November/December 2003)

The benefits of ground gears are well known. They create less noise, transmit more power and have longer lives than non-ground gears. But grinding has always been thought of as an expensive process, one that was necessary only for aerospace or other high-tech gear manufacturing.

128 The Capacity of Superfinished Vehicle Components to Increase Fuel Economy, Part I (January/February 2009)

This paper will present data from both laboratory and field testing demonstrating that superfinished components exhibit lower friction, operating temperature, wear and/ or higher horsepower, all of which translate directly into increased fuel economy.

129 Experience with Large, High-Speed Load Gears (July 2007)

The main theme of this article is high-capacity, high-speed load gears in a power transmission range between 35 MW and 100 MW for generators and turbo-compressors driven by gas or steam turbines.

130 At the PEEK of the Polymer Food Chain (June 2010)

In the hypercompetitive race to increase automobile efficiency, Metaldyne has been developing its balance shaft module line with Victrex PEEK polymer in place of metal gears. The collaborative product development resulted in significant reductions in inertia, weight and power consumption, as well as improvement in noise, vibration and harshness (NVH) performance.

131 Design, Development and Application of New, High-Performance Gear Steels (January/February 2010)

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.

132 The Anatomy of a Micropitting-Induced Tooth Fracture Failure (June 2010)

Micropitting has become a major concern in certain classes of industrial gear applications, especially wind power and other relatively highly loaded, somewhat slow-speed applications, where carburized gears are used to facilitate maximum load capacity in a compact package. While by itself the appearance of micropitting does not generally cause much perturbation in the overall operation of a gear system, the ultimate consequences of a micropitting failure can, and frequently are, much more catastrophic.

133 Improvement in Load Capacity of Crossed Helical Gears (January/February 1987)

Crossed helical gear sets are used to transmit power and motion between non-intersecting and non-parallel axes. Both of the gears that mesh with each other are involute helical gears, and a point contact is made between them. They can stand a small change in the center distance and the shaft angle without any impairment in the accuracy of transmitting motion.

134 Maximum Life Spiral Bevel Reduction Design (September/October 1993)

Optimization is applied to the design of a spiral bevel gear reduction for maximum life at a given size. A modified feasible directions search algorithm permits a wide variety of inequality constraints and exact design requirements to be met with low sensitivity to initial values. Gear tooth bending strength and minimum contact ration under load are included in the active constraints. The optimal design of the spiral bevel gear reduction includes the selection of bearing and shaft proportions in addition to gear mesh parameters. System life is maximized subject to a fixed back-cone distance of the spiral bevel gear set for a specified speed ratio, shaft angle, input torque and power. Significant parameters in the design are the spiral angle, the pressure angle, the numbers of teeth on the pinion and gear and the location and size of the four support bearings. Interpolated polynomials expand the discrete bearing properties and proportions into continuous variables for gradient optimization. After finding the continuous optimum, a designer can analyze near-optimal designs for comparison and selection. Design examples show the influence of the bearing lives on the gear parameters in the optimal configurations. For a fixed back-cone distance, optimal designs with larger shaft angles have larger service lives.

135 Systematic Approach to Designing Plastic Spur and Helical Gears (November/December 1989)

Plastic gears are being used increasingly in applications, such as printers, cameras, small household appliances, small power tools, instruments, timers, counters and various other products. Because of the many variables involved, an engineer who designs gear trains on an occasional basis may find the design process to be somewhat overwhelming. This article outlines a systematic design approach for developing injection molded plastic spur and helical gears. The use of a computer program for designing plastic gears is introduced as an invaluable design tool for solving complex gearing equations.

136 Optimizing Gear Geometry for Minimum Transmission Error, Mesh Friction Losses and Scuffing Risk Through Computer- Aided Engineering (August 2010)

Minimizing gear losses caused by churning, windage and mesh friction is important if plant operating costs and environmental impact are to be minimized. This paper concentrates on mesh friction losses and associated scuffing risk. It describes the preliminary results from using a validated, 3-D Finite Element Analysis (FEA) and Tooth Contact Analysis (TCA) program to optimize cylindrical gears for low friction losses without compromising transmission error (TE), noise and power density. Some case studies and generic procedures for minimizing losses are presented. Future development and further validation work is discussed.

137 The Relationship of Measured Gear Noise to Measured Gear Transmission Errors (January/February 1988)

Vehicle gear noise testing is a complex and often misunderstood subject. Gear noise is really a system problem.(1) most gearing used for power transmission is enclosed in a housing and, therefore, little or no audible sound is actually heard from the gear pair.(2) The vibrations created by the gears are amplified by resonances of structural elements. This amplification occurs when the speed of the gear set is such that the meshing frequency or a multiply of it is equal to a natural frequency of the system in which the gears are mounted.

138 Selection of Hobbing Data (November/December 1987)

The art of gear hobbing has advanced dramatically since the development and introduction of unique machine and tool features such as no backlash, super rigidity, automatic loading of cutting tools, CNC controls, additional machine power and improved cutter materials and coatings. It is essential to utilize all these features to run the machine economically.

139 Crowning: A Cheap Fix for Noise Reduction and Misalignment Problems and Applications (March/April 1987)

Noisy gear trains have been a common problem for gear designers for a long time. With the demands for smaller gear boxes transmitting more power at higher rpms and incumbent demands for greater efficiency, gear engineers are always searching for new ways to reduce vibration and limit noise without increasing costs.

140 Investigation of the Strength of Gear Teeth (November/December 1992)

To mechanical engineers, the strength of gear teeth is a question of constant recurrence, and although the problem to be solved is quite elementary in character, probably no other question could be raised upon which such a diversity of opinion exists, and in support of which such an array of rules and authorities might be quoted. In 1879, Mr. John H. Cooper, the author of a well-known work on "Belting," made an examination of the subject and found there were then in existence about forty-eight well-established rules for horsepower and working strength, sanctioned by some twenty-four authorities, and differing from each other in extreme causes of 500%. Since then, a number of new rules have been added, but as no rules have been given which take account of the actual tooth forms in common use, and as no attempt has been made to include in any formula the working stress on the material so that the engineer may see at once upon what assumption a given result is based, I trust I may be pardoned for suggesting that a further investigation is necessary or desirable.

141 Lubricant Jet Flow Phenomena in Spur and Helical Gears (January/February 1987)

In the gearing industry, gears are lubricated and cooled by various methods. At low to moderate speeds and loads, gears may be partly submerged in the lubricant which provides lubrication and cooling by splash lubrication. With splash lubrication, power loss increases considerably with speed. This is partially because of churning losses. It is shown that gear scoring and surface pitting can occur when the gear teeth are not adequately lubricated and cooled.

142 Doing It Right & Faster... The Computer's Impact on Gear Design & Manufacture (May/June 1992)

The availability of technical software has grown rapidly in the last few years because of the proliferation of personal computers. It is rare to find an organization doing technical work that does not have some type of computer. For gear designers and manufacturers, proper use of the computer can mean the difference between meeting the competition or falling behind in today's business world. The right answers the first time are essential if cost-effective design and fabrication are to be realized. The computer is capable of optimizing a design by methods that are too laborious to undertake using hard calculations. As speeds continue to climb and more power per pound is required from gear systems, it no longer is possible to design "on the safe side" by using larger service factors. At high rotational speeds a larger gear set may well have less capacity because of dynamic effects. The gear engineer of today must consider the entire gear box or even the entire rotating system as his or her domain.

143 A Logical Procedure To Determine Initial Gear Size (November/December 1986)

When a gear set is to be designed for a new application, the minimum size gears with the required capacity are desired. These gears must be capable of meeting the power, speed, ratio, life, and reliability requirements.

144 Improved Gear Life Through Controlled Shot Peening (September/October 1986)

The search for greater gear life involves improvement in cost, weight and increased power output. There are many events that affect gear life, and this paper addresses those relating to fatigue, gear tooth pitting, fatigue strength losses due to the heat treating processes and shot peening technique. The capability of shot peening to increase fatigue strength and surface fatigue life eliminate machine marks which cause stress risers, and to aid in lubrication when properly controlled, suggests increased use and acceptance of the process.

145 Gears for Nonparallel Shafts (September/October 1986)

Transmission of power between nonparallel shafts is inherently more difficult than transmission between parallel shafts, but is justified when it saves space and results in more compact, more balanced designs. Where axial space is limited compared to radial space, angular drives are preferred despite their higher initial cost. For this reason, angular gear motors and worm gear drives are used extensively in preference to parallel shaft drives, particularly where couplings, brakes, and adjustable mountings add to the axial space problem of parallel shaft speed reducers.

146 CNC Basics (January/February 1995)

NC and CNC machines are at the heart of manufacturing today. They are the state-of-the-art equipment everybody has (or is soon going to get) that promise to lower costs, increase production and turn manufacturers into competitive powerhouses. Like many other high tech devices (such as microwaves and VCRs), lots of people have and use them - even successfully - without really knowing much about how they operate. But upgrading to CNC costs a lot of money, so it's crucial to separate the hype from the reality.

147 A Computer Solution for the Dynamic Load, Lubricant Film Thickness, and Surface Temperatures in Spiral-Bevel Gears (March/April 1986)

Spiral-bevel gears, found in many machine tools, automobile rear-axle drives, and helicopter transmissions, are important elements for transmitting power.

148 Gear Transmission Density Maximization (November/December 2011)

This paper presents an approach that provides optimization of both gearbox kinematic arrangement and gear tooth geometry to achieve a high-density gear transmission. It introduces dimensionless gearbox volume functions that can be minimized by the internal gear ratio optimization. Different gearbox arrangements are analyzed to define a minimum of the volume functions. Application of asymmetric gear tooth profiles for power density maximization is also considered.

149 Worm Gears - Higher Energy Efficiency and Less Strain on Resources (May 2011)

A very direct and effective way of increasing power transmission efficiency is a changeover from mineral-oil-based lubricants to synthetic lubricants.

150 Pacific Rim Gives Stiff Competition To U.S, Gear Producers (July/August 1991)

This past fall, I had the opportunity to travel to Japan, Korea, Taiwan, and Singapore to witness first-hand the status of the power transmission and machine tool industries in these areas. Points of interest included equipment, material handling, computerization, wage and tax structures, inventory controls, and workforce attitude.

151 Grinding Bevel Gears on Cylindrical Gear Grinding Machines (January/February 1994)

Power train designs which employ gears with cone angles of approximately 2 degrees to 5 degrees have become quite common. It is difficult, if not impossible, to grind these gears on conventional bevel gear grinding machines. Cylindrical gear grinding machines are better suited for this task. This article will provide an overview of this option and briefly introduce four grinding variation possibilities.

152 The Tradition Continues (January/February 2020)

You may have noticed a few changes around here. Most notably, the face on this page isn't the one you're used to seeing here. As you've probably heard by now, Michael Goldstein, founder and Publisher since 1984, has stepped back from his day-to-day duties and transferred the operation of Gear Technology, Power Transmission Engineering and Gear Technology India to the American Gear Manufacturers Association.

153 To Be Continued...Without Question (January/February 2020)

Welcome to a new era of Gear Technology magazine! AGMA is proud to add Gear Technology, Gear Technology India, Power Transmission Engineering, the Michael Goldstein Gear Technology Library and supporting websites and circulation under its umbrella.

154 Technical Calendar (January/February 1989)

March 19-22, 1989. First International Applied Mechanical Systems Design Conference. Convention Center, Nashville, TN. April 25-27, 1989. ASME 5th Annual Power Transmission & Gearing Conference, Chicago, IL

155 Show Stoppers (September/October 2019)

Motion + Power Technology Expo VIP Exhibitors special advertising section.

156 MPT Expo Map and Listings (September/October 2019)

Find the exhibitors you want to visit at the first-ever Motion+Power Technology Expo (formerly Gear Expo).

157 Get Answers LIVE and in Person (September/October 2019)

You have challenges. We all do. If your challenges are related to any aspect of gear design, manufacturing, inspection, heat treating or use, the solutions can be found at Motion + Power Technology Expo, which takes place October 15–17 in Detroit.

158 Involute Splines (September/October 1990)

Engineering design requires many different types of gears and splines. Although these components are rather expensive, subject to direct wear, and difficult to replace, transmissions with gears and splines are required for two very simple reasons: 1) Motors have an unfavorable (disadvantageous) relation of torque to number of revolutions. 2)Power is usually required to be transmitted along a shaft.

159 Moving Into High Gear (March/April 2007)

In February (2007), we launched a new magazine, Power Transmission Engineering (PTE). While most of you have probably already seen it...

160 One Small Step Towards Mars (July 2014)

In the June issue of our sister publication -- Power Transmission Engineering -- the Power Play feature (Destination Mars! -- pg. 64) was devoted to NASA’s Mars-oriented LDSD (Low Density Supersonic Decelerator) project...

161 Hard Finishing of Cylindrical Gears (August 2021)

Power Skiving with Integrated Cutter Resharpening

News Items About power

1 ANCA Invests in Renewable Energy to Power Headquarters (February 12, 2018)
ANCA is one of the first businesses to team up with Australia’s fastest growing business power retailer, Flow Power, to buy power... Read News

2 Koepfer America K-Powered CNC Gear Hobbing Machine Provides Next Step in Repowering Old Models (November 11, 2015)
Koepfer America recently completed the next step in its K-Repowered CNC re-control program with the first K160 Repowered CNC Gear Hobbing... Read News

3 Vail Resorts Buys Wind Power to Offset its Electric Power (April 14, 2006)
Vail Resorts announced plans to buy enough wind power credits to offset the power needed for its resorts, retail stores and office buildi... Read News

4 Consortium Develops Powertrain for Autonomous Vehicles (January 18, 2021)
A consortium of businesses is developing an electric powertrain that will meet the demands of future vehicles.Electric powertrains (motor... Read News

5 Seco to Offer Milling Solutions at Windpower 2012 (March 22, 2012)
Seco will be highlighting a range of solutions for wind power machining applications at Windpower 2012, including the North American... Read News

6 Suhner Spiral Bevel Gears Offer High Power, Low Backlash and Low Noise (August 21, 2015)
Each year, increased engine and motor power require more powerful angle gear heads. Engineers in the tool-making and industrial hand too... Read News

7 SMW Autoblok Introduces KNCS-2G Power Chuck (December 3, 2021)
Introducing the flexible, fully Proofline sealed KNCS-2G power chuck that allows users to change jaws in under 1 minute – dramatica... Read News

8 Suhner's SU-Flock Silent Flex Shafts Reduce Noise in Power Seats and Sunroofs (May 1, 2015)
Flexible shafts do not create noise, but they can transmit vibrations from the power source, thus creating unacceptable sound levels. Suh... Read News

9 Sandvik Coromant Enables Single-Setup Gear Production with Power Skiving Solution (February 6, 2019)
A new power skiving solution composed of CoroMill 178 and CoroMill 180 cutters from Sandvik Coromant is being released to help automotive... Read News

10 Koepfer 'Repowered' Model 160 Gear Hobbing Machine to Be Shown at Gear Expo (September 18, 2015)
Koepfer America will showcase a selection of gear hobbing machines.First is the “Repowered” Koepfer Model 160 gear hobbing ma... Read News

11 EMCO Maier Introduces Hyperturn 65 Powermill (December 10, 2014)
The Hyperturn 65 Powermill offers a large spindle clearance of 1300 mm, a powerful counter spindle which also allows 4R... Read News

12 Timken Power Systems Facility Achieves ISO 9001:2008 Certification (March 4, 2015)
The Timken Company recently announced its power systems service facility in Princeton, WV, has earned ISO 9001:2008 Quality Manageme... Read News

13 Helios Announces NEO Power Skiving Machine (April 9, 2020)
Helios Gear Products announces a new line of machine tools from YG Tech that serves gear manufacturers seeking a power skiving solution. ... Read News

14 REpower Systems and Essar Group To Partner in Indian Wind Energy Market (April 22, 2006)
RREpower Systems has entered into a licensed agreement with India's Essar Group to facilitate entry into that country's growin... Read News

15 Midwest Motion’s Gearmotor Accepts Battery Power (April 12, 2006)
The Model MMP-TM55-12V GP52-308 gearmotor from Midwest Motion accepts any 12-volt DC source including battery power and measures 2.14" in... Read News

16 NexxtDrive’s Variable Speed Power Take-Off Provides Micro Hybrid-Functionality (April 2, 2006)
The NexxtPTO is a compact, variable speed mechanical power take-off that can be configured to act as an engine starter and alternator, pr... Read News

17 Bison Gear, Armature Electric Partner for Power Transmission Distribution (April 13, 2005)
Bison Gear and Engineering announced the addition of Armature Electric Ltd. as the Bison power transmission distributor for western Canad... Read News

18 GMTA Presents Profilator and its “Micro-Finishing” Technology at Motion + Power Technology Expo (July 26, 2019)
With over 300 exhibiting companies, the Motion+ Power Technology Expo is the ideal show for the gear, electric and fluid power industries... Read News

19 Greaves Cotton Sells Power Transmission Units (December 12, 2003)
Greaves Cotton will sell off units involved in the manufacture and sale of power transmission products, which includes the plants at Pune... Read News

20 Toyota Advances IIoT Technology at Engine and Power Transmission Manufacturing Plant (July 20, 2020)
When the management at Toyota's engine and power transmission manufacturing plant in Walbrzych, Poland, looked to increase the availa... Read News

21 Punch Powertrain Names Chief Technology Officer (May 29, 2020)
Punch Powertrain, an independent supplier of innovative and clean powertrains for leading automotive manufacturers worldwide, has named G... Read News

22 SMW Autoblok Offers Self-Centering Power Chuck (June 22, 2020)
SMW Autoblok recently introduced the SJL 6-jaw (2+2+2) equalizing and self-centering power chuck.Ideal for CNC machining applications, th... Read News

23 SMW Autoblok Offers High Precision Power Chuck (July 20, 2020)
SMW Autoblok has introduced the HFKS-2G weight optimized power chuck with flats and large through hole for minimizing inertia, maximizing... Read News

24 Honda Begins Powertain Components Production in China (March 8, 2007)
Production began on March 8 at the new Honda Auto Parts Manufacturing Co.Ltd. (CHAM) plant in Nanhai Industrial Park District, Foshan Cit... Read News

25 Hardinge Offers Super-Grip Power Chucks (August 30, 2012)
Hardinge Inc. manufactures a premiere line of lever-operated, counter-centrifugal and dynamically balanced Sure-Grip Power Chucks. The le... Read News

26 WomenPower Career Conference Takes Place at Hannover Messe 2021 (November 25, 2020)
A broad audience views lectures and discussions streamed from three stages onto a digital event platform. On-site attendees participate i... Read News

27 Ticona Supports Hi-Lex Power Lift Gate Transmission (February 9, 2012)
An innovative transmission from Hi-Lex America Inc. continues to reliably and quietly open and close automotive lift gates thanks to desi... Read News

28 Nordex Secures 75 MW Project from EverPower (December 2, 2010)
Shortly after dedicating its new wind turbine manufacturing plant in Jonesboro, Arkansas, Nordex USA secured an order for a 75 MW project... Read News

29 Bonfiglioli Yaw and Pitch Drives Power German Offshore Wind Farm (June 9, 2010)
Germany's first offshore wind farm, Alpha Ventus, features yaw and pitch drives from the Bonfiglioli Group. The wind farm feature... Read News

30 Gleason to Exhibit Large Gear Production Technologies at Windpower 2010 (May 7, 2010)
Wind turbine gears produced by Gleason gear production machines and cutting tools supply over 50 percent of the world's wind energy.&... Read News

31 PowerCool MaxLife Coolants Give Biostability and Performance (March 30, 2010)
Rustlick PowerCool MaxLife and PowerCool MaxLife CF coolants are long-lasting water-soluble oils with new additives specifically formulat... Read News

32 Ideal Gear and Machine Works Celebrates 90 Years Supporting Power Transmission Industry (August 21, 2009)
After 90 years, Ideal Gear and Machine Works looks to the future with new investments in people, expanded capacity and equipment, inclu... Read News

33 VWDIR Gearmotors Operate Under Heavy Duty Torque and Power (December 18, 2008)
Bison Gear's Von Weise Drop-In Replacement gearmotors offer up to 800 in-lbs of continuous torque output, making them suitable for e... Read News

34 MAG Powertrain Installs MQL System for Ford (November 26, 2007)
MAG Powertrain is installing a Minimum Quantity Lubrication (MQL) machining system at the Ford Van Dyke Transmission Plant in Sterling He... Read News

35 BHS Rotor Turning Gears Showcased at PowerGen Europe (June 13, 2007)
BHS Getriebe GmbH will be showcasing its rotor turning gear capabilities in its booth at Power Gen Europe.Units are used to prevent ... Read News

36 New Brevini High Power Series Combines Epicyclic Gear Design with Modularity (March 2, 2007)
Brevini's new ?High Power? Series combines the highly efficient epicyclic gear design of Brevini's recently introduced ?S? Series... Read News

37 Gleason Announces Complete Power Skiving Solutions (November 7, 2013)
Gleason Corporation has announced their complete set of Power Skiving solutions, providing an economical process ideally suited for the p... Read News

38 Inductoheat’s Heat Treating System Compatible with Numerous Power Supplies (January 16, 2007)
The InductoScan modular heat treat system from Inductoheat is designed to increase versatility, reduce maintenance and installation cost... Read News

39 New Gearbox for Power Transmission Applications (April 24, 2006)
SIPCO Mechanical Linkage Solution launched its newest addition to the Technogear? product line. The new LC precision planetary series... Read News

40 AWEA Merges Into American Clean Power Association (January 21, 2021)
Renewable energy is already operating at scale and is on track to triple its reach in the U.S. over the next 30 years. The American Clean... Read News

41 MSC Software Announces Wind Power and Sustainability Webinar Series (May 28, 2021)
MSC Software, a part of Hexagon’s Manufacturing Intelligence division, announced it will host an eight-part webinar series covering... Read News

42 Hexagon's Annie Lien Joins Waymo Forum on the Power of Mentorship for Women (June 30, 2021)
Hexagon’s Manufacturing Intelligence division recently announced Annie Lien, director of business development for autonomous soluti... Read News

43 Neeter Drive Gearboxes Transmit Power up to 6600 N-m (April 12, 2006)
The PowerGear range of bevel gearboxes from Neeter Drives is available in sizes 360 and 450 with an extended transmission range of 3,750 ... Read News

44 Parker Expands Its PowerStation Family (April 8, 2006)
Parker Automaton-CTC introduced the EPX10S, which is equipped with a 10" TFT, SVGA display and analog resistive touchscreen. It joins th... Read News

45 Magna Powertrain and Amtek Establish Joint Venture in India (April 3, 2006)
Magna Powertrain and Amtek Auto Ltd. today signed a joint venture agreement to establish a manufacturing facility outside of Delhi, India... Read News

46 VDMA Reports Power Transmission Engineering Market Upswing (July 28, 2021)
At the board meeting of the VDMA Power Transmission Association on July 15, 2021, the sales forecast from the spring was increased from p... Read News

47 New Power Transmission Package from Brevini (April 14, 2005)
The new High Power Series from Brevini combines the gear design of the S Series planetary gearboxes with modular features of the PIV POSI... Read News

48 Mazak MPower Offers Comprehensive Machine Tool Service and Support (August 18, 2021)
With the launch of its new MPower customer support program, Mazak takes complete customer care to the next level, giving manufacturers th... Read News

49 Genstar Acquires Colfax Power Transmission Group (April 16, 2004)
Colfax Power Transmission Group was recently acquired by Genstar Capital L.P., a private equity firm. In a related move, Colfax PT has me... Read News

50 Power Transmission Association Releases Purchasing Report (December 19, 2003)
The Power Transmission Distributors Association's (PTDA) latest report claims that U.S. and Canadian end users consider the product q... Read News

51 QUADROK Delivers Optimal Holding Power (October 15, 2012)
In addition to the flexible QUADROK plus from Hainbuch, now there is a 'slimmed-down' variant that concentrates completely on the... Read News

52 SMW Autoblok Introduces MM E-Motion Power Chuck (November 3, 2020)
SMW Autoblok introduces the fully sealed MM e-motion 4-jaw chuck providing contact-free adjustment of the gripping force without unclampi... Read News

53 Solar Atmospheres Partners with HI-POWER (November 18, 2020)
Solar Atmospheres of Western PA recently entered a five year partnering agreement with a leading energy storage company, HI-POWER, a Holt... Read News

54 Rockwell Automation Offers Webinar for Process Control for Power and Energy Industry (July 16, 2020)
The newly announced PlantPAx 5.0 Distributed Control System (DCS), the flagship system from Rockwell Automation, uses an approach that is... Read News

55 Gleason Vertical Power Skiving Machines Equipped with On-Board Cutter Resharpening Unit (March 4, 2020)
A fully integrated on-board cutter resharpening unit is now available for Gleason Vertical Power Skiving machines, allowing for the compl... Read News

56 Mytec HydraClamp Offers Power Skiving and Gear Shaping Benefits (November 14, 2019)
Skiving has been around for a long time, but recent advances in technology have improved the speed and effectiveness of this gear-makin... Read News

57 Motion + Power Technology Expo Preview: Hainbuch (October 11, 2019)
A mandrel with hexagonal pyramid shape instead of a round taper, designed with stringent manufacturing requirements and process reliabili... Read News

58 Schunk Offers 6-Jaw Power Lathe Chuck (September 30, 2019)
The Schunk ROTA NCR-A sealed 6-jaw pendulum compensation chuck has special seals at the jaw interface and the piston to keep the grease f... Read News

59 Motion + Power Technology Expo Preview: Gear Motions (September 17, 2019)
Gear Motions will exhibit at the Motion + Power Technology Expo (MPT Expo), Oct. 15-17, 2019, at the TCF Center in Detroit, Michigan. Dur... Read News

60 Motion + Power Technology Expo Preview: WFL Millturn (September 3, 2019)
WFL focuses on complete machining with a full range of Millturn machines. The possibilities for machining complex parts up to very big co... Read News

61 Norton Will Highlight Xtrimium Grinding Wheels During Motion + Power Technology Expo (August 16, 2019)
Norton Xtrimium gear grinding wheels will be highlighted at the Motion + Power Technology Show Booth #2607, October 15-17, 2019 at the Co... Read News

62 Helios Set to Demonstrate Gear Capabilities at Motion + Power Technology Expo (August 13, 2019)
Helios Gear Products will demonstrate multiple gear manufacturing solutions at the Motion + Power Technology Expo (MPT Expo) in Detroit a... Read News

63 Motion + Power Technology Expo Preview: Emuge Corp. (August 9, 2019)
Emuge Corp. has announced it will be exhibiting at the Motion + Power Technology Show Booth #3307 this year from October 15-17 at the Cob... Read News

64 MHI Sets Motion + Power Technology Expo for ZE26C North American Debut (July 19, 2019)
Mitsubishi Heavy Industries Machine Tool Co., Ltd. (MAT) will follow the world debut of the new ZE26C at CIMT in China with the 2019 Moti... Read News

65 KISSsoft Offers Feasibility Assessment for Power Skiving (July 17, 2019)
As a part of Gleason, we have a strong partner behind us when it comes to specific manufacturing know-how. For example, KISSsoft can now ... Read News

66 AGMA and NFPA Announce MPT Conference at Motion + Power Technology Expo (February 7, 2019)
The new Motion + Power Technology Expo (MPT Expo), formerly Gear Expo, will offer a new opportunity for attendees to learn from industry ... Read News

67 Power-Gen International Preview: Exact Metrology (November 21, 2018)
Exact Metrology will exhibit at this year’s Power-Gen International held in Orlando, Florida. Celebrating 30 years, Power-Gen focus... Read News

68 Regal Beloit to Acquire Power Transmission Solutions (December 30, 2014)
Regal Beloit Corporation recently announced it entered into a definitive agreement to acquire the Power Transmission Solutions business (... Read News

69 Gear Expo Becomes Motion + Power Technology Expo (September 27, 2018)
The new Motion + Power Technology Expo (MPT Expo), formerly Gear Expo, has announced its inaugural event in October 2019. This unique t... Read News

70 Windpower 2018 Celebrates Success in Midwest (April 5, 2018)
Wind energy is breaking records in the Midwest. Wind provided 60 percent of the region’s electric needs earlier this month. America... Read News

71 Mecof Powermill Machining Center Offers Ideal Solution for Aerospace and Large Workpiece Handling (March 1, 2017)
The large Powermill machining center from Mecof, part of EMCO Group, provides users precision, high dynamics, operational flexibility and... Read News

72 Affolter Develops Worm Power Skiving Machine (June 20, 2016)
Affolter Technologies SA, a technology and market leader in micro gear hobbing machines for the aerospace, medical and micromechanical in... Read News

73 Mullen and Hofer Powertrain Collaborate on Electric Drive Systems and Components (September 23, 2021)
Mullen Technologies, Inc., an emerging electric vehicle manufacturer, which previously announced a definitive agreement to merge with Net... Read News

74 Röhm to Showcase Duro-TA XT Key Bar Chuck and Power-Grip Clamping System at IMTS (May 18, 2016)
At IMTS 2016 in Booth W-2528, Röhm Products of America will show its strength as a one-stop clamping and gripping supplier by presen... Read News

75 EMAG Eldec Induction Hardening Systems Offer Precision Hardening, Lower Power Consumption (January 15, 2016)
EMAG subsidiary Eldec has developed modular induction hardening systems. The technology ensures efficient processes that integrate harden... Read News

76 ABB Robotics Receives Global Powertrain Manufacturing Excellence Award (December 16, 2015)
ABB Robotics received the Global Powertrain Manufacturing Excellence award from the Ford Motor Company at the Ford Powertrain Manufacturi... Read News

77 Sakor Provides Test Stand for Powertrain Component Provider (July 23, 2020)
Sakor Technologies Inc. recently provided a performance test stand for validating designs for new hydraulic variable timing cam phaser sy... Read News

78 Doosan VMCs Power Joe Gibbs Racing Team (September 23, 2020)
Joe Gibbs Racing (JGR) recently added two new Doosan vertical machining centers.Mynx 5400/50As tough as Doosan machines are, after 20 yea... Read News

79 Schunk EGN Safety Gripping System is Continuously Powered (June 18, 2015)
The EGN Safety is the first certified safety gripping system from Schunk for use with human and robot interaction. It is certified in acc... Read News

80 Siemens One Dynamics Offers Powerful Technology Package for Motion Control (October 16, 2020)
With the software version NCU-SW 6.14, Siemens is launching three technology packages exclusively for the CNC Sinumerik One. The Sinumeri... Read News

81 Destaco Launches New Power Clamp Series (March 23, 2020)
Destaco is pleased to announce the launch and availability of its Model 84A40-1/84A50-1 Power Clamps. Despite their very compact double-a... Read News

82 Power Electric Adds Gearing Products (June 1, 2016)
Power Electric announces the formal addition of gearing products to its product offerings. Custom gears are manufactured to application r... Read News