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Nanocomposite Coatings for Gears

This work aims to demonstrate the potential benefit of applying nanocomposite coatings to gear teeth to reduce operating friction and wear by presenting tribological test data.

Smarter Clamping Starts at the Core

Discover how Gleason’s reengineered segmented collets optimize ID workholding with advanced materials, broader expansion ranges, and proven long-term durability

The Hazards of Heavy Lifting

DBS Canada repairs mobile mining gearbox for iron ore application

Sharper Eyes on Precision Gears

How multisensor metrology is transforming spur gear inspection with integrated vision and tactile probing

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Technical Articles

Durability and Performance Rating Procedures for Plastic Gears

High-performance plastic gears are increasingly replacing metal gears in several applications due to the many advantages they exhibit. The main ones are lower weight, no need for lubrication, cheaper mass production, significantly better noise, vibration and harshness (NVH) behavior and chemical/corrosion resistance. Most plastic gears are produced by injection molding, which enables great design flexibility, e.g., joining several machine elements into one molded part, while gear geometry modifications like enlarged root rounding or altered profile shapes are also possible (Ref. 1).

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The Role of In-Situ Techniques in Microstructure Optimization of Interstitially Alloyed Steels

Various in-situ methods can track realtime heat treatment response in bulk materials. This can aid material engineers in designing the most effective heat treatment procedures and processing methods. In-situ  methods such as thermogravimetry (TG), differential thermal analysis (DTA), and dilatometry, offer capabilities to examine heat treatment behavior in real time, giving insight into the thermochemical mechanisms and the thermal behavior of steel.

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An Experimental Study on the NVH Performance of Plastic Gears

The following study presents an experimental methodology, employed to characterize the NVH behavior of plastic gears NVH in application-like operating conditions, presenting guidelines for material selection in terms of optimal gear NVH. 

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Very High Cycle Fatigue Testing of AMS 6308 Steel

In this paper, ultrasonic fatigue testing results for “core hardened” AMS 6308 gear steel are presented. AMS 6308 is a gear and bearing steel with high tempering resistance and high hot hardness case targeted to high temperature applications

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Design

Gleason's Coniflex® Pro Design and Manufacturing System for producing stronger, quieter, and more reliable e-drive differential gears in high volumes, for automotive, truck, bus and off-highway transmissions. It‘s the differential difference!


Grinding

For the transmissions of electric vehicles to develop the desired high torque under all driving conditions, a very large gear ratio is needed, which requires high speeds. And to ensure sufficient momentum at all speeds and enable the driver to accelerate without shifting gears, the electric drive must achieve up to 15,000 rpm, which is about three times that of a typical combustion engine. This puts a lot of strain on the rotor shaft. The manufacturers of rotor shafts are thus facing new challenges, such as the significantly lower shape and position tolerances and the need for greater machining precision.

Inspection

For precision measuring, skilled machinists, toolmakers, and inspectors must have accurate tools and gages, produced from quality materials, carefully manufactured, and rigidly inspected, to ensure lasting dependability. Gages have evolved throughout the years beginning with mechanical, then electronic models, and now convenient wireless electronic versions have come on the scene. Each type has an important place in today’s quality control and inspection processes.

Heat Treating

Gas carburizing has been around for a long time. One could argue that gas carburizing is the most common heat treating process. Heat treaters performing gas carburizing are often characterized by a dirty environment, hazy surroundings, and that “smell.” While the product quality may be acceptable, gas carburized parts do come with some challenges, like excessive intergranular oxidation (IGO) or intergranular attack (IGA), which is often ground off. Low-pressure carburizing (LPC) has proven to be a much cleaner and very capable alternative process. Most furnace companies have combined LPC with high pressure gas quenching, which moved carburizing from the dark back room to a relatively “clean room” environment. However, there is still a strong need for oil quenching, which is the common feature of the long used standard integral-quench (IQ) furnace.

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Videos

Grob Showcases Gear Ring Production with Power Skiving

The Grob G750T boasts efficient machining for gear rings by offering precise and efficient power skiving and seamless integration of milling and turning for maximum flexibility and productivity.

Industry News

The Society of Tribologists and Lubrication Engineers (STLE) is hosting a Virtual Symposium on Tribology in Aerospace Applications, July 29-30, 2025, from 8:00 a.m.-12:00 p.m. CT.

Product News

Fanuc America displayed its latest industrial and collaborative robotic innovations at Automate 2025. 

Calendar

EMO Hannover 2025

Sep 22, 2025 - Sep 26, 2025

Founded in 1975, EMO Hannover has stood for innovation, internationality, inspiration and the future of metalworking worldwide. This trade fair for production technology offers a unique platform every two to four years in Hannover under the motto 'Innovate Manufacturing' to establish international contacts, tap into new business opportunities and gain a comprehensive overview of the industry's global offering.

CAR Management Briefing Seminars 2025

Sep 15, 2025 - Sep 17, 2025

Dritev 2025

Jul 9, 2025 - Jul 10, 2025

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