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.

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 SKF’s 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.

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.


Company Profile: Roto-Flo

Responsible for developing the cold form rolling process, this company has updated and revamped the equipment's design, outfitting it with all the latest CNC...

The Next Frontier in Gear Testing

By: Douglas Felsenthal

Kleiss Gears has been at the forefront of R&D efforts improving the attributes of polymer gearing, including testing methods to insure tight tolerances and maximum repeatability.

Predicting Hypoidcontact Conditions

By: Barry James, Mike Douglas & David Palmer, Ph.D

In this article experts from Romax Technology outline a numerical simulation method that allows for the prediction of standard misalignment parameters in hypoid gear sets.

The Power of Pulsed Plasma

By: David Pye

An experienced metallurgist makes the case for a finishing process that is clean, controllable, precise, and reduces the risk of distortion and surface growth.

Company Profile: Romax Technology

Learn about the developer of some of the most advanced design software packages available, as well as its efforts to spread knowledge within the industries it serves.

Company Profile: The Flaming Treating &...

This family-run business sets itself apart by focusing on the best methods for producing premium, custom-hardened parts for customers who've come to depend on its...

Powder Metal for Precision and Performance

By: Dave Burton

The P/M process provides quality and repeatability for gearing manufactured for a wide variety of applications. This article provides insights into how, when, and why it works.

The Flexibility of Spindle Finishing

By: Larry E. Beavens

For precise, controlled deburring and surface improvements when finishing gears and other metal parts, consider the process developed—and described here—by...


Epicyclic Gearing: A Handbook

By: Jim Marsch & Amy Flanagan

For design engineers who are just beginning their careers—and even old pros who could use a refresher course—the following article takes a basic approach to...

The Principles of Workholding: Part I

By: Tim Peterson CMfgT & Juergen Kempf

This article is the first in a multi-part series on workholding presented by Toolink Engineering and König-mtm, with this installment devoted to the fundamentals of...


An Advanced Approach to Optimal Gear Design

By: Dr. Veniamin I. Goldfarb & Dr. Alexander A. Tkachev

Take two proven design approaches—Direct Gear Design and the Method of Dynamic Blocking Contours' combine their best attributes, and the result is Advanced Gear...

Battling Gear Infant Mortality

By: Jeffrey P. McGuckin

Sometimes a seasoned gear manufacturing machine is the most dependable, but close monitoring is required to keep it running at the peak of its productivity.

Improvements in Dimensional Control of Heat...

By: Daniel H. Herring & Frederick J. Otto

The following study involves applying low pressure vacuum carburizing technology utilizing either oil or high pressure gas quenching in order to eliminate distortion.

Heat Treatment Simulation Can Help Avoid Process...

By: Dr. Frederic Boitout, Dr. Damian Dry, Yogendra Gooroochurn, Philippe Mourgue & Harald Porzner

The success or failure of heat treatment affects manufacturing costs, but it also determines product quality and reliability. Heat treatment must be taken into account during...

A Cool Approach to Optimized Bearing Performance

By: John Rhodes & Jim Madsen

In this article Timken provides you with solid advice on how to choose the right bearing for your particular application, and how the design can help avoid unwanted heat...

Wear Mechanisms of HSS Cutting Tools

By: Sture Hogmark & Mikael Olsson

The following article provides an overview of the wear mechanisms of high-speed steel cutting tools, both coated and uncoated.

Scuffing Resistance of Isotropic Superfinished...

By: Bruce D. Hansen, Paul W. Niskanen & Lane Winkelmann

Sikorsky Aircraft, REM Chemicals, Alion Science and Technology, and others join forces to evaluate how the ISF process alleviates this failure mode in aerospace gears.

Static and Fatigue Calculations of Wind Turbine...

By: Dipl. Ing. ETH Hanspeter Dinner

Design knowledge must be utilized and cultivated in all aspects of gear manufacturing, and this conclusion to a two-part series describes useful tools and techniques.

Next Generation Gear Grinding

By: Dennis Richmond

Reishauer's continuous generating gear grinder, the RZ 1000, provides greater accuracy, faster setups and changeovers, and onboard inspection capabilities.

Static and Fatigue Calculations of Wind Turbine...

By: Dan Kondritz & Dipl. Ing. ETH Hanspeter Dinner

Design knowledge must be utilized and cultivated in all aspects of gear manufacturing, and this first installment in a two-part series describes useful tools and techniques.

Supplier Relationships Speed Gearbox Delivery

By: Bob Giuliano

Stober Drives' three-day turnaround on its gearboxes meets customers' need for speed, made possible–in part–by a close relationship with bearing supplier...

Stress in Diamond-Coated Cutting Tools

By: Jianwen Hu, Raymond G. Thompson & Kevin Chou

Diamond coatings make cutting tools more effective, but only if the layer remains intact. Read on to learn about how machining stress can lead to delamination, and failure.