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Gear forging opportunities

Forging has long been used to manufacture gears, particularly in the production of gear blanks, which often uses open-die forging, […]

Lubrication and its role in gear-failure analysis

When gears fail, it is most often due to fatigue and overloading. The most common form of distress and failure […]

Selecting a worm gear lubricant

To compete in the marketplace, engineers across all industries are being tasked with increasing gearbox efficiency. Modern designs therefore must […]

Gasbarre Thermal Processing Systems

Gasbarre Thermal Processing Systems designs, manufactures and services a full line of heat treating equipment for virtually any process. Gasbarre’s […]

A new approach for the calculation of worm shaft deflection in worm and crossed helical gear drives

Worm gear drives are characterized by a simple design, which allows the realization of a high gear ratio within one […]

Multi-sensor metrology advances

Demand for accurate gears delivered on tight schedules is increasing. To keep pace, technology is continually advancing, enabling manufacturers to […]

Finding the ideal materials for gears

When designing an individual gear or a gear train, the choice of material will either be the primary factor on […]

Leveraging the complementary strengths of orbitless and planetary drives

An orbitless drive is a novel, fixed-ratio, epicyclic drive that includes a second carrier in place of a ring gear. […]

The benefits of splines

What is a spline? According to the American Heritage Dictionary of the English Language, a spline is defined as: Noun: […]

Bringing forging equipment online to meet expanding production requirements

When forging operations need to expand production to meet increased demand for existing parts or to add new product lines, […]

Tooth root testing of steels with high cleanliness

The power density of gearboxes is continuously increased through different research activities. Besides new material developments, steel cleanliness comes to […]

Inspection & Metrology: Laser interferometry – An enabling technology for optimized automated manufacturing

Technological advances over recent years have elevated metrology from being a “necessary evil” in manufacturing scenarios to enabling technologies, allowing […]

Optimization of asymmetric tooth root generated with protuberance hob

The Direct Gear Design [1] method optimizes various parameters and elements of gear tooth geometry to achieve the required gear-drive […]

Performance and properties of a new alternative gear steel

In the ongoing strive for light weighting or power densification, high-performance clean steels are showing a significant improvement. As a […]

Opportunities of Efficiency Improvement by the Use of Hydro Lubricants

1 Introduction Although different base oil types exist in the market and are widely in use, the majority of industrial […]

Integrated Approach for Gear Testing of High-Performance Clean Steels

The power density of gearboxes is continuously increased by different research activities. Besides new material developments, the cleanliness of steels […]

Experimental tests to predict plastic gears’ lifetime

One of the major problems of plastic gears is the lack of data about their lifetime. Literature doesn’t contain numerous […]

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 […]

Filling Some Gaps in Spline Design Guidelines: Centering, Friction, and Misalignment

Editor’s note: At the author’s request, some statements have been removed for clarity since the article was originally published in October, […]

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