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).
With government mandates to reduce greenhouse gas (GHG) emissions, decarbonizing the largest industrial emitters has become an essential research focus. The Environmental Protection Agency (EPA) reported that industrial point sources in the United States (U.S.) emitted 1.45 billion tons of carbon dioxide (CO2) in 2022, accounting for 23 percent of all domestic CO2 emissions for that year (Refs. 1,2). One of the largest contributors to industrial emissions is the iron and steel industry, which was responsible for 2.5 percent of total U.S. GHG emissions in 2023 (Ref. 3). Due to the large quantity of emissions available for capture from this industrial sector, iron/steel production facilities present an impactful opportunity for industrial decarbonization.
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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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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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Overall developments and widespread public awareness of man-made climate change are transforming the way people think. The awareness has inspired a shift towards a more ecologically sustainable way of life. Driven by policymaking and technological innovation, ambitious efforts are underway to reduce greenhouse gas emissions to curb the rise in average temperatures. A key focus of these efforts is the mobility sector.
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The main objective of this study is to perform an experimental evaluation of the structural model of a five-planet first planetary stage from a modern 6MW wind turbine gearbox.
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.
Advantages of induction hardening over carburizing, as prepared for the AGMA Metallurgy Committee.
From countless conversations with folks running gear operations, we know you're probably focused on..."
Injection molding bridges prototyping and full-scale production with its unmatched scalability and precision. By integrating CT technology, manufacturers gain clear insights into mold accuracy and material behavior—accelerating the path from design to high-volume, defect-free plastic parts.
Whether it’s gears for industrial or humanoid robots, Gleason has you covered:
100PS Power Skiving and Hobbing Machine and Phoenix® 100C Bevel Gear Cutting Machine provide excellent productivity and flexibility to cut your strain wave and planetary gears, as well as bevel and hypoid gear sets in unsurpassed quality. Both come with or without integrated automation and complete tooling systems. Measure the results on the 175GMS nano Metrology System with various analysis capabilities.
Is your grinding or finishing process optimized for maximum efficiency? The Weiler Process Solutions (WPS) evaluation helps gear manufacturers to enhance productivity, reduce costs, and improve safety. Our expert team will assess your operation and recommend tailored solutions to optimize performance. Sign up for a free evaluation today, and we’ll contact you within 48 hours to discuss how we can help—potentially visiting your site for a hands-on assessment.
Discover how machine learning minimizes roughness variations in profile grinding, enhancing the performance and durability of wind power gearboxes. The latest research by KAPP NILES demonstrates an optimized dressing process that improves surface quality on tooth flanks after profile grinding for next-generation wind turbines.
The EMAG VSC 400 PS offers the integration of power skiving and turning technologies in one machine, a solution that significantly increases both the flexibility and efficiency of production. By using up to four gear skiving tools and six turning tools, you can produce even complex gears in a single clamping operation, which increases productivity enormously.
Forest City Gear has recognized several employees for their long-term dedication to the company, including Roger McMullin (10 years), Paul Cristoph (5 years), and Mark Javurek (5 years).
American Precision Gear (APG) has strengthened its manufacturing capabilities with the installation of the MZ 1000 D-Drive gear hobbing machine from Helios Gear Products. This investment not only improves throughput, but also elevates quality and precision machining capabilities, reinforcing APG’s reputation as an industry leader in precision gear manufacturing.
Sep 10, 2025 - Sep 12, 2025
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.
Jun 17, 2025 - Jun 18, 2025
Jun 24, 2025 - Jun 27, 2025
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