Archives
PDF

Better Bevel Gearing

Industry leader Gleason increases productivity in manufacturing straight bevel gears with a powerful suite of tools, techniques, and specialized equipment.

Noise Reduction in Plastic Gears

By: Richard R. Kuhr

When noise reduction is incorporated into design, the outcome will be increased quality and precision. The following is a practical approach to producing low-noise molded gears.
PDF

Company Profile: Proto Manufacturing Ltd.

A testing equipment company with its roots in manufacturing possesses particular insights into the process that strengthen its products and the services it provides.

Company Profile: Parker Industries, Inc.

Already an established presence in the gear-manufacturing industry, new ownership has resulted in the rebirth of this company. Read on for an impressive progress report.
PDF

Company Profile: Promess, Inc.

With its assembly and test systems in use worldwide, this company has a fascinating history as well as a bright and productive future.

Programmed to Enter New Markets

By: Jerry Fireman

As it expands into new markets, including wind energy, Oerlikon Fairfield adopts a new CNC programming system that has increased both flexibility and productivity.

Fatigue Performance of Prealloyed PM Steel

By: Alexander Klekovkin, Nagarjuna Nandivada, Ian Howe & Sven Bengtsson

North American Hoganas successfully demonstrates the excellent heat-treated properties of the newly developed prealloyed Cr-Ni steel Astaloy CMN.

Robotic Gear Processing

By: Robert E. Lee Greene III

As companies around the world seek ways in which to lower production costs, robotic deburring and manufacturing systems can definitely help level the playing field.
PDF

Company Profile: Gear Technology

Long known for quality and precision, this company continues making strides in the commercial aerospace and defense industries, with new markets on the horizon.

A New Approach to Shop-Floor Gear Inspection

By: Gary Sicheneder & Roberto Baruchello

Marposs has responded to a need for a shop-floor inspection system, allowing for real-time inspection of gears in various stages of production without the need for skilled setup.

New Gains in Grinding Pinions

By: Anita Fey

In building a machine that completely grinds pump pinions in a single clamping Junker presents a unique production technology, and the ability to replace three machines with a...
PDF

Company Profile: X-R-I Testing, Inc.

Whether you want to send your gears in for non-destructive testing, handle it yourself, or to establish a—co-located—facility on-site, here's the company to...

Duration Through Diversification

By: Everett Hawkins

A wide range of capabilities at work in diverse markets helps companies like Forest City Gear to remain competitive and thrive during tough economic times.

Gear Tooth Temperature Measurements

By: Suren Rao, Ph.D. & Douglas R. McPherson

Much can be learned from measuring the temperature of gears under load. The following paper describes an experimental technique developed specifically for this purpose.

Gear Cleaning Goes Ultrasonic

By: Del Williams

Ultrasonic baths can optimize gear cleaning in terms of safety, quality, and cost. The following tips will help you get the most out of this application.
PDF

Company Profile: Inductoheat, Inc.

From selecting the right material for parts a company wants to manufacture, to designing the induction heat-treating system it will require, here's your source for expert...

Bearing Reliability in Rebuilt Gearboxes

By: Colin Roberts

SKF's bearing vibration analyzer has proven invaluable during the maintenance and refurbishment of gearboxes and other critical units in demanding applications.

Low Pressure Carburizing for Transmissions

By: Dr. Volker Heuer & Dr. Klaus Löser

Low pressure carburizing and high pressure gas quenching have become a preferred technology for the latest generation of transmissions. Here's why.

Retained Austenite Stabilization

By: Paul Stratton & Cord Henrik Surberg

Case-hardened components made of low-alloy steels often have retained austenite in the case after quenching, which can be transformed to martensite by further cooling of the...
PDF

High Pressure Water Deburring

By: Richard Bertsche

Friendly both to parts and the environment, this process is gaining momentum in the gear-manufacturing industry as its many benefits are discovered.

Lubricant Contaminants Limit Gear Life

By: Mary Moon, Ph.D.

It's been estimated that 82 percent of machine wear is particle-induced, pointing to the importance of purchasing quality lubricants and keeping them free of particulate...

Abrasiveness of Boron Carbide Coatings

By: Matthew Siniawski, Jane Qian Wang & Stephen J. Harris

Parameters such as coating thickness, counterpart tempering temperature, and coating asperity sharpness in particular influence coating abrasiveness.
PDF

Company Profile: Brelie Gear Co., Inc.

Take an established company with experienced personnel, throw major capital investments into the mix, and what you end up with is a recipe for success.

Grinding Internal Planetary Gears

By: Yoshikoto Yanase & Masashi Ochi

MHI experts describe an internal gear grinding machine that has been developed for precise and efficient grinding of ring gears in automobile planetary gear systems.

Carburizing Wind-Turbine Gears

By: Mike LaPlante

An inside glimpse into the development of the first integral-quench batch furnace in the United States approved for carburizing critical gears for wind-turbine applications.

Optimizing Ring Gear Forging

By: Mazyad Almohaileb, Jay S. Gunasekera & Bhavin V. Mehta

Efficiency matters, and the following article describes research resulting in the reduction of forging stages, temperature, and material wastage when producing ring gears.
PDF

A Hard Turn Toward Efficiency

By: Christer Richt

While grinding is the traditional finishing technique for hardened steel gears, hard part turning provides quite a few benefits that may improve your process, and your product.

Workholding That Works

By: Ann Pettibone

Smart manufacturers can maximize their workholding investment by learning how to use these devices efficiently and to the full extent of their capacity. Drewco provides important...

The Principles of Workholding: Part III

By: Tim Peterson CMfgT & Juergen Kempf

In the third—and final—installment in a multi-part series on workholding, Toolink Engineering and König-mtm discuss inspection, special fixtures, and...

PDF

Hard Fact of Hard Rack Milling

By: Yoshikazu Tomioka

The following paper concludes that hard rack milling for finishing hardened racks provides the same level of accuracy as rack grinding, with lower costs and shorter cycle times.

Better Broaching through Process Control

By: Ken Nemec

Those concerned with streamlining their broaching process will appreciate the following step-by-step description of aspects to be examined, understood, and improved.

Protecting Gears in Wind Power Applications

By: Hermann Siebert & Ari-Pekka Holm

The following article, presented by lubrication experts with Kluber, discusses the benefits of high performance oils for heavily loaded gears in wind power stations.
PDF

Company Profile: KGK International

This company is constantly seeking manufacturers of equipment that will save gear manufacturers time and money while providing the quality and accuracy they require.

SKF Keeps Wind Turbines Spinning

By: Colin Roberts

Wind turbine gearboxes outfitted with SKFs latest high-capacity bearings will provide greater reliability and longer life.

Gearing Up for Land, Sea, and Air

By: James J. Cervinka & Joseph L. Arvin

Arrow Gear describes how the use of advanced design technology is expanding its range of power transmission applications in a wide range of environments.

Investigating Epicyclic Gear Whine

By: Dr. M. Eccles, Dr. J. Pears & Dr. F. Kamaya

Testing epicyclic gear systems leads to discoveries that will help eliminate gear noise during the design phase.
PDF

Company Profile: Excel Gear Inc.

When he couldn't obtain the precision gearing he needed for high-speed applications from his suppliers, one man decided to begin designing and manufacturing them...

Higher Contact Ratios for Quieter Gears

By: Dr. Gonzalo Gonzalez Rey

Gear noise can indicate flawed design or an inferior product, and it also reflects on the quality and precision of your manufacturing operation. The following analysis suggests...

The Principles of Workholding: Part II

By: Tim Peterson CMfgT & Juergen Kempf

The second in a multi-part series on workholding, in this installment Toolink Engineering and König-mtm discuss the pros and cons of mechanical workholding devices.

Tooth-Bending Effects in Plastic Spur Gears

By: Dr. Ir. H.G.H Van Melick

The results of extensive modeling and testing, conducted by DSM Research BV, reveal the key differences in mechanics and wear of plastic gears.