Hybrids, range extenders, electric vehicles, ICE vehicles and autonomous driving: There’s a little bit of everything in the automotive market today. Electrification and e-Mobility remain the end game, but politics, global policies, tariffs, and infrastructure challenges have put the “all-in on BEVs” on hold for the moment here in North America. The biggest question is how long will the electrification and e-Mobility markets fluctuate?
This study aims to propose a robust reverse engineering methodology for straight bevel gears, especially for those found in inter-wheel differentials.
.
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.
.
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
.
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).
.
In modern automotive vehicles, gear noise becomes more and more of an issue. The main reason is the reduced masking noise of the engine, which vanishes completely in the case of an electric driveline. Improved gear quality unfortunately does not correlate with a better noise performance in any case. High gear quality makes sure that the gear flanks are inside tight tolerances and that all teeth are nearly identical. Even if the running behavior of such gear sets shows a very low sound pressure level, the noise perception for human ears may be annoying.
This article introduces the process of polish grinding of gears. Improved surface quality increases the overall efficiency of gearboxes, resulting in reduced friction and torque loss, higher power density, and noise-optimized gears (lower NVH); all these factors are highly relevant, especially for electric drives. When Reishauer developed polish grinding in 2012, the process aimed to improve the efficiency of ICE engine transmissions, and the set goals were easy to achieve. Today, in 2023, the situation is dramatically different. While an ICE engine operates at around 3,000 rpm and supplies acoustic masking of the gear noise, EV drivetrains feature up to 20,000 rpm and offer no such masking.
Zahnradfertigung OTT GmbH & Co. KG was the first company to install the new fully automatic CNC-controlled P 152 precision measuring center from Klingelnberg in its ultra-modern machine park.
Quality control, EV components, energy consumption and material influences are just a handful of topics being discussed in heat treating today. New heat treat methods and global trends will be the topic of conversation later this year at Heat Treat 2023. Here’s a round-up of some stories circulating across key market segments.
Oversized drivetrains are inefficient and waste resources. The FVA-Workbench helps you turn real-world load data into actionable insights in just a few steps. Discover how intuitive workflows lead to lighter, safer, and more efficient drivetrains.
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.
At American Precision Gear, quality isn’t just a priority — it’s the foundation of everything they do. The shop specializes in high-precision miniature gears for aerospace, defense, and medical applications, where the strictest tolerances are non-negotiable. Helios Gear Products partnered with American Precision Gear to integrate the MZ 1000 D-Drive into their production.
Gleason Corporation today announced it has acquired 100% of the shares of the Intra Group of Companies with its headquarters in Westland, MI. Intra is a global industry leader offering a broad range of custom measurement technology, including single-flank gear testing equipment and is a supplier of high-precision gears and components to many of the world's leading aerospace and defense companies.
With the third generation of its successful U line, Kadia introduces a state-of-the-art honing machine that redefines standards in precision, productivity and serviceability–while maintaining full versatility.
Sep 8, 2025 - Sep 11, 2025
Fabtech 2025 (Chicago) will span more than 800,000 square feet of exhibits showcasing the latest in metal forming and fabricating, welding and finishing equipment, automation and robotics and smart manufacturing technologies. With 200+ conference sessions, Fabtech offers hands-on learning, expert-led keynotes, and panel discussions on everything from shop floor strategies to emerging trends in AI, sustainability and workforce development. Whether you're a shop owner, engineer, or executive, Fabtech 2025 is your chance to network, discover new solutions, and prepare for what’s next in manufacturing.
Sep 22, 2025 - Sep 26, 2025
Sep 15, 2025 - Sep 17, 2025
Contact | Privacy Policy
©2025 Power Transmission Engineering
Current Issue
Current Issue
Archives
Subscribe
Buyer's Guide
Cutting Tools Gear Blanks & Raw Material Gear Drives Gear Machines Gear Manufacturing Services Gears Grinding Wheels & Abrasive Tools Heat Treating Inspection Equipment Lubricants Machine Tools Resources Services Software Used Machinery Workholding & ToolholdingThe Gear Industry Buyers Guide is your complete directory of suppliers in the gear industry, including great companies like these.
VIEW ALL