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Farewell to an Idea

The impact of steel tariffs on the gear industry

Trade policy faces the end of stable, predictable global commerce—competing ideas are in a tug of war, and the tension between imagined futures and local reality is taut.

The Digital Ecosystem with Ipsen

IIoT, AI and automation integration leads to enhanced heat treat capabilities

Machine and Tool Concepts for Contract Manufacturing

Liebherr solutions enhance flexibility, accuracy, and efficiency at SPN Schwaben Präzision

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Technical Articles

Hard Skiving of an Internal DIN5480 Spline—A Process Analysis

This report uses an application case to demonstrate the optimization potential of gear skiving in the production of internal splines on a universal machining center. The process established in the example is then analyzed using the software tool OpenSkiving developed by the wbk Institute of Production Science of the Karlsruhe Institute of Technology (KIT) and the results are discussed. Finally, the most important findings are summarized.

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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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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

Variable loads resulting from a working process, starting process, or operation near a critical speed will cause varying stresses at the gear teeth of a drive system. The magnitude and frequency of these loads depend upon the driven machine, the motor, the dynamic mass elastic properties of the system, and other effects.


Grinding

2023 is shaping up to be our planet’s hottest year on record, and the wind energy industry is feeling the heat. The GWEC (Global Wind Energy Council) says that the rate of wind turbine installations will need to quadruple globally by the end of the decade if we’re to achieve the IRENA’s (International Renewable Energy Agency) goal of net zero carbon emissions by 2050—and keep the average annual temperature worldwide from increasing more than the predicted 1.5° C. Fortunately, “net zero” commitments are gathering global momentum. Before year’s end, total global windpower is expected to reach a historic milestone of 1 TW of installed capacity, eliminating 1.2 billion tons of CO2 annually, roughly the equivalent of all the carbon emissions of South America.

Inspection

A combination of international regulations and consumer expectations is driving the demand for reduced noise on all drivetrain components. Further demand is driven by the growing trend towards EVs and HEVs, where noise from ICE is intermittent or no longer present, and the contribution of transmission noise to overall vehicle noise becomes dominant.

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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

RENK Group AG, a leading supplier of military and civilian propulsion solutions, has successfully completed the acquisition of Cincinnati Gearing Systems Inc. (“CGS Inc.”), a U.S.-based manufacturer of precision gears and power transmission technologies. Effective immediately, CGS Inc. will operate under the name RENK America Marine & Industry LLC. 

Product News

GWJ Technology GmbH has released a new version of its TBK desktop calculation solution for designing, recalculating and optimizing gears, shafts, bearings, bolted joints, shaft-hub connections and other machine elements.

Calendar

The 11th International VDI Conference on Gears 2025 will be held in Garching, Munich at the Gear Research Centre (FZG) of the Technical University of Munich. Supported by national and international associations, the conference brings together 500+ leading experts from the international gear and transmission industry. Visiting the conference gives attendees the opportunity to take part in this leading international forum and learn about the latest developments and research results in the powertrain industry and academia.

Wenzel and Nidec Open House 2025

Jun 17, 2025 - Jun 18, 2025

Realize Live Americas

Jun 2, 2025 - Jun 5, 2025

Dritev 2025

Jul 9, 2025 - Jul 10, 2025

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