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Outlook 2025

Gear manufacturers weigh-in on state-of-the-gear-industry today

The ever-volatile election cycle has ended. Gear companies—and metalworking organizations in general—must now shift their focus toward customers. Can they meet orders in a timely fashion? Is it time to strengthen the talent pool? How is their equipment stacking up against the competition? Overall, there is a feeling business will turn the corner in the 3rd and 4th  quarters of 2025. Gear Technology spoke with representatives from Atlanta Gear Works (AGW), Croix Gear and Forest City Gear (FCG) on the state of gear manufacturing in 2025.

Machine Tool Magic

Klingelnberg open house highlights gear production technologies

The State of Gear Machine Tools 2025

Challenges, opportunities, and emerging trends

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Technical Articles

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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Nonlinear Analysis of Gear-Fatigue-Damage Under Variable Load

This paper presents a comparison of the linear and nonlinear approaches for damage accumulation of tooth root breakage damage of gears. In the beginning, the theoretical fundamentals of damage accumulation are presented compactly. To compare the suitability of the methods an extensive set of experimental data is presented at first. The data is evaluated with both the linear and the nonlinear approach and the results are compared. For the linear approach, the method according to Miner and Palmgren is applied. For the nonlinear approach, the method developed by Subramanyan is used. The objective of this evaluation is to assess if the more complex method yields a potential benefit for a more accurate service life prediction of gears.

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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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Bevel Gear Speed Increasers

For cylindrical gears, speed-increasing transmission stages are well known, and regarding profile shift, preferred pressure angles, and helix angles a set of rules applies, which is not much different from the rules for speed reducers. It is important to acknowledge that basically, a speed increaser has to be designed just like a speed reducer, but then the gear with the lower number of teeth is the output. Of course, the torque and the speed of the gear with the lower number of teeth (output) and the gear with the higher number of teeth (input) must be the same as if this transmission was used as a speed reducer. In the case of straight bevel gears, spiral bevel gears, and hypoid gears the same rules apply with some additions. Spiral bevel gears have many applications as speed increasers.  

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Design

E-Mobility is changing the gear market at an incredibly rapid pace. Software is adapting to meet these new challenges.

Grinding

This article describes a cloud-based process and machine component monitoring system called ARGUS. The term “swarm” is used for a large population of gear-grinding machines of individual and independent customers connected to the ARGUS system and the ARGUS cloud. These “swarm” machines permanently feed their anonymized process data into a common cloud database. Reishauer uses this database for big data analytics to discover patterns that indicate successful process and machine component behavior patterns worth integrating into the ARGUS algorithms and propagate them across the complete ARGUS customer base.

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

The roots of heat-treating run deep within ASM (American Society for Materials) International, as its society was founded in Detroit in 1913 as The Steel Treaters Club. The heat-treating constituency of ASM created the Heat Treating Society (HTS) to provide focused leadership, communications, and service development to its network of worldwide membership of captive and commercial heat treaters, equipment manufacturers, researchers, governments, and technicians. To discuss Heat Treat 2023, the 32nd annual HTS Conference and Exhibition, Gear
Technology took a moment to catch up with conference chair Andrew Banka, vice president of Airflow Sciences Corporation. Heat Treat 2023 is colocated with IMAT and Motion + Power Technology Expo in Detroit, October 17–19.

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Videos

Gleason Modernization Programs / P300 Recontrol

Complete Machine Remanufacture on a Gleason P300 - Complete remanufacture addresses all machine functions. The machine is returned to Gleason, where it is completely disassembled and rebuilt. A machine remanufacture is similar to buying a new machine but without the need to purchase new peripherals or to rethink existing process chains.

Industry News

From May 6–9, 2025, the 37th Control in Stuttgart, Germany, will open its doors and offer trade visitors a comprehensive overview of the latest technologies, processes, products and system solutions in the field of industrial quality assurance. Klingelnberg will be taking part again this year and is pleased to present the Klingelnberg Precision Measuring Centers P 26, P 40 and P 152, among others. 

Product News

Ceratizit’s UP2DATE catalog is now available, showcasing the latest product developments and advancements for the cutting tool industry. Designed to help customers optimize machining performance, extend tool life, and maximize production efficiency, this edition features tooling solutions tailored to meet intricate milling and micromachining operations. Included in the spring 2025 UP2DATE edition are the MaxiMill – Slot-SNHX milling cutter, the MaxiMill – Tangent milling cutter, and the WTX – Micropilot micro drill. 

Calendar

PowderMet 2025

Jun 15, 2025 - Jun 18, 2025

PowderMet2025 (Phoenix) is dedicated to metal powder and particulate materials-based processes including press and sinter, metal additive manufacturing, metal injection molding and more. The show provides an energetic forum to showcase PM, metal AM, and MIM equipment, powders, products, and services. MPM2025, co-located with PowderMet 2025, is a technical conference and exhibition dedicated to metal additive manufacturing.

Hannover Messe 2025

Mar 31, 2025 - Apr 4, 2025

Bauma 2025

Apr 7, 2025 - Apr 13, 2025

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