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ITW Heartland

ITW Heartland designs gears and pinions for the world’s most advanced aerospace, energy, defense and transportation industries.

Tooling & Workholding: Software thought backwards

There are already an infinite number of different gear geometries. Nevertheless, engineers are constantly coming up with new variants. For […]

The commonalities and differences between helical ‘low-tooth-count gears’ and ‘multiple-start worms’

The article deals with geometrically-accurate worm gear pairs that feature line contact between tooth flanks of a worm gear and […]

Root cause for noise excitation in geometrically-accurate (perfect) parallel-axes gearing

Gears are extensively used to transmit a rotation from a driving shaft to a driven shaft. Depending on the gear […]

Using simulation to evaluate part green shape to reduce distortion during plug quenching

Determining the heat-treatment geometry (green shape) for complex gears is not a trivial task. Mass distribution becomes critical in determining […]

An Animated Approach to Plotting Profiles

Trochoid Spiral (TS) and Epitrochoidal Spiral (ETS) curves and special flash animations were developed by the author in 2004 and […]

The Sensitive Side of Computer-Aided Design

Context sensitive assistance facilitates the integration of design and manufacturing. Context sensitive assistance in computer aided design systems may be […]

The Attributes of Loaded Gear Tooth Modeling: Part Two

As I mentioned in the first installment of this article (please see June 2005 issue of Gear Solutions magazine), I’m […]

The Attributes of Loaded Gear Tooth Modeling: Part One

Figures 1-14 courtesy of The Gleason Works On numerous occasions during a career with gears, I’ve had the opportunity to […]

Designing Gears Through the Years

In the past 50 years, we’ve certainly come a long way in terms of our gear design and problem-solving capabilities. […]

An Optimized Approach to Straight Bevel Gear Design

The optimal — or “rational” — design of gears can be a challenge due to the high number of variables, […]

Direct Digital Simulation Modeling

Direct Digital Simulation (DDS) is a universal method for computer modeling of gear design manufacturing and analyses. Unlike the commonly […]

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, […]

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 […]

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 […]

Transforming Design with Integrated Gear Software

S.M. “Jack” Marathe, the president of Universal Technical Systems, Inc., isn’t exactly modest when he talks about the power and […]

Software Solutions for Unknown Gears

Ever have a gear that you wanted to inspect, but didn’t have drawing data to define the part? M&M Precision […]

The Next Dimension in Detecting Tooth Distortion

The conventional CNC gear inspection machine will measure and evaluate helix and involute tooth flank deviations that are relative to […]

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