As the Worm Turns… Toward Rolling
Cylindrical die worm rolling is a proven high-speed process which can produce precise worms with excellent surface finish and high fatigue strength when...
AGMA: The Industry’s International Advocate
Editor's note: In this special feature I've decided to depart from our usual format and allow Joe Franklin to speak in his own...
A New Design for Dry Hobbing Gears
In recent years, environmental safety requirements have been raised around the world, and many companies are seeking to acquire ISO14000 certification to meet...
Reducing Distortion in Heat-Treated Gears
Power transmission gear manufacturing for critical industrial applications (Figure 1) requires an understanding of many factors, including both heat treat process-related variables (pretreatment,...
Dealers Deliver More than Machines
We don't usually associate the word "advantage" with the concept of "working through" someone else when it comes to purchasing equipment. Instead, we...
Arrow Offers a Stock Solution
A sagging economy and the fierce demands of global competition are unfortunate realities that all manufacturers have been faced with in recent years....
The Details of Ductile Iron
Cast iron is generally thought of as a weak, dirty, cheap, brittle material that does not have a place in applications requiring high...
Direct Digital Simulation Modeling
Direct Digital Simulation (DDS) is a universal method for computer modeling of gear design manufacturing and analyses. Unlike the commonly used differential geometry,...
The Advent of OptiGearing
Introduction
A 25 to 35 percent increase in power density and a markedly lower operating noise are two major performance advantages that a new...
The Fundamentals of Face Driving
Ever-increasing demands on manufacturers to improve productivity and quality have led to the need for faster and more accurate machine techniques. Face driving...
Animated CAD Solutions for Gear Mechanism Design
Two-dimensional and 3D CAD programs have continually lessened the role of the engineer in the actual process of designing gears, gear mechanisms, and...
Methods of Hob Maintenance
Deciding on the benefits of in-house hob sharpening depends on a number of factors that gear manufacturers are faced with when determining the...
Bladerunner 3F
In the past five years, dry-cutting technology has steadily moved to dominate production of automotive hypoid gearsets in the United States, while a...
Sophisticated Software for Real-Time Data Retrieval
In an age of information systems, we have immediate access to everything from our e-mail to the Internet. Gear manufacturers now have a...
Polyglycols for Lubricating Large Gear Drives
Introduction
In modern-day gear technology, the lube oil used is an important element of the gear's overall design. Increasingly stringent requirements for large enclosed...
Extending Gear Life with Synthetic Lubricants
Petroleum oils may always have a place in the world of gearing, but as mechanisms run hotter and faster, quality demands increase, and...
Side Fit Spline Profiles
Splines are necessary for many reasons. In addition to transmission of torque, spline profiles are used to find and centralize the axis between a...
Actual vs. Effective Involute Tooth Size
While splines have been manufactured for decades, they still seem to perplex the manufacturing engineer who is trying to insure the proper assembly of...
Determining the Source of Gear Whine Noise
Gear whine noise, particularly in consumer products such as motor vehicles and appliances, is an important and annoying problem. This problem has been...
Fine Pitch Powder Metal Gears Using Stainless Steel Alloys
While the AGMA Powder Metallurgy gear committee has referenced 48 pitch as a working limit for fine pitch powder metal gears, production processes are...
