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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...

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...

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...

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...

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...

The Power of Powder

Market demand for more cost-effective processes to produce higher-performance product continues to increase. To meet this reality, manufacturers who often still consider gear-cutting...

Form Rolling for Finishing Powder Metal Gears

In this article we introduce a finish rolling process for sintered Fe alloy gears using a new CNC form rolling machine: the Galaxy,...

The Basics of Brush Deburring

Today's marketplace offers a wide spectrum of needs for all types of manufacturers: from the job shops needing quick and easy changeovers for a...

The Basics of Rebuilding Machine Tools

Rebuilding a machine tool requires expertise in mechanical, hydraulic, lubrication, pneumatic, electrical, control, and coolant systems, as well as knowledge of the process the...

PVD Coatings for Improved Gear Production

Low-temperature Physical Vapor Deposition (PVD) coatings show proven functionality, both in increasing the performance of cutting tools used to machine gears as well...
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