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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).

Keeping the Boats Afloat

Marine Industrial Gears (MIG) is always on call, ready to repair transmissions on everything from river boats up the Mississippi, to oil tankers on the high seas.

Mechanochemical Surface Finishing for High-Speed Gears for EV Transmissions

Meeting the noise and efficiency demands of the electric drivetrain era

Tips for Optimizing Your Cylindrical Grinding Processes

Unlocking next-level precision and efficiency on the shop floor

A Robotic Road Map to Automation

Making the case for collaborative robots in the gear shop

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Technical Articles

Cutting Tool Selection Criteria for Cylindrical Gear Manufacturing

This paper is divided into two parts. The first part is a general digression on the pressure angle on cylindrical gears. The pressure angle is a variable that plays an important role in defining the geometry of gears and hobs, yet it is not widely discussed. This introduction serves as a prerequisite for the second part of the paper. The second part will show an application case of choosing the most suitable hob to cut a given gear. In this selection process, particular attention will be paid to the pressure angle of the hob for cutting with modified rolling, i.e., with a reduced pressure angle compared to that of the gear.

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Experimental and Analytical Study of the Effect of Shot Peening on Gear Micropitting and Contact Fatigue Failure

This study aims to investigate the effect of this identified type of shot peening on the micropitting resistance of the gear tooth flanks and the macropitting resistance and to compare the experimental results with the calculation results based on standard methods.

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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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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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Design

Grinding

The way to increase production, especially with the largest gears, is to decrease nonproductive time with improved strategies.

Inspection

Complete inspection of gear surface finishes at the submicron level became a reality with the introduction of Gleason’s 300GMS nano, in 2022. The new system ushered in an exciting new era in gear inspection. For the first time, producers of EV transmission gears, and gears for other applications requiring very tight tolerances and low noise requirements, could quickly inspect surface finishes and perform extremely reliable noise analysis at submicron levels—benefits that were almost impossible to achieve just a few years ago.

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

Automated Tool Change with the EMAG VST 50

Efficiency and process reliability are critical in modern manufacturing—and this is exactly where the EMAG VST 50 excels. A standout feature: the fully automated tool change. Thanks to an integrated robot, the tool change takes less than 90 seconds—all while production continues uninterrupted! The tool magazine ensures a smooth process: it swivels outward, the robot swiftly and precisely replacing the tool.

Industry News

Star SU, the marketing, sales, and service affiliate of Star Cutter Company, has announced the hiring of Scott Lukomski as sales director for cutting tools. Lukomski will report to Star SU president, Andreas Blind.

Product News

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

Calendar

CAR Management Briefing Seminars 2025

Sep 15, 2025 - Sep 17, 2025


The Center for Automotive Research (CAR) MBS leads the industry in providing a context for auto industry stakeholders to discuss critical issues and emerging trends while fostering new industry relationships in daily networking sessions. The CAR Management Briefing Seminars take place at Michigan Central Station in Detroit. 

EMO Hannover 2025

Sep 22, 2025 - Sep 26, 2025

Dritev 2025

Jul 9, 2025 - Jul 10, 2025

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