Wednesday, March 20, 2019
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Design features of perfect gears for crossed-axes gear pairs

Gearings that operate on crossing axes of rotation of a gear and a mating pinion have been known for centuries. Common sense and accumulated...

Magnetic Barkhausen Noise as an Alternative to Nital Etch for the Detection of Grind Temper...

The detection and prevention of grinding burn is critical to the production of ground gears of all types and sizes. Overheating during grinding, or...

Grading the strength of steel

Vehicle manufacturers are faced with a difficult task of significantly improving fuel economy and safety while maintaining competitive position in the market. This can...

Measuring Tooth Flank Roughness

Gear performance has continuously increased over the past two decades. Improvements in metals, heat treatments, geometry, and lubrication are just a few of the...

The Root Cause for Gear Noise Excitation

This article is about noise excitation and vibration generation in gear drives when the gear drives operate. It is shown that transmission error is...

How Polyketone Polymers Improve Gear Performance

Engineers have been using thermoplastic resins to produce gears used in assemblies for the automotive, appliance, business equipment, and other market segments for many...

Psychoacoustic Methodology for the Noise Reduction of Bevel Gears

The relationship between FFTs and gear quality as well as gear noise is investigated with some surprising conclusions, which leads to the discovery of...

Tooling Profile: Euro-Tech Corporation

Euro-Tech Corporation prides itself as having a limited number of highly–engineered solutions in the fields of profile gaging and workholding. Those high-end solutions often translate...

Services Profile: Excel Gear Inc.

The gear industry has been slowly changing over the last 10 years, and Excel Gear has worked hard to change with it, offering ground...

Machines Profile: Reishauer

Since its founding in 1788, Reishauer has moved from manufacturing precision thread cutting tools to being a market leader in precision gear grinding machines. “Automobiles,...

The critical role of deburring

Autonomous steering and brake systems, hydro-pneumatic chassis, or radically improved gas mileage — these buzzwords represent a technological change that is triggering a domino...

Heat treating low alloy PM steels

Tempering is a heat-treatment technique used to improve the strength, ductility and toughness of hardened carbon steels. Tempering occurs by heating the steel to...

Calculation of Tooth Flank Fracture Load Capacity

1: Introduction Due to improved material qualities, new surface finishing methods and increased heat-treatment process reliability, flank surface damages, such as pitting or micropitting,...

Advances in the Production of Double Helical Gears

Double helical gears (herringbone gears) are characterized by a symmetric arrangement of two identical gear teeth with exactly opposite helix angles. As a result...

Flexibility is Key to Aftermarket Success

Staying lean and profitable has always been a challenge for aftermarket gear manufacturing. Expedited delivery demands, legacy product support, unpredictable product volumes, limited warehouse...

Modular Sealing Solution Ideal for Automation

Across every industry, today’s state-of-the-art manufacturing environment emphasizes variable batch sizes, flexible processes, and high availability. These factors are placing higher demands on individual...

Areal Evaluation of Involute Gear Flanks with 3D Surface...

With the evolution of size, weight, surface structure, and tolerance requirements in gear production and application, gear metrology is challenged at the same time...

The Effects of Shrouding on reducing Meshed Spur Gear Power Loss

Gearbox efficiency is reduced at high rotational speeds due to windage drag and viscous effects on rotating, meshed gear components. A goal of NASA...

 A driving force in workholding

Over the years, companies performing turning operations have come to realize the versatility of using face drivers as a complete workholding solution. Along the...

Precision measuring  with hand tools

Developments in precision measuring have made modern hand tools more accurate and easier to read. Reviewing basic tips for “how to” use precision instruments...
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