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Prospects of Asymmetric Gears in EV Gearbox

The paper examines how optimizing asymmetric gear tooth geometry through Direct Gear Design can improve load capacity, efficiency, and compactness in EV gearboxes, surpassing the performance limits of conventional symmetric gears.

Eliminating Gear Noise Before It Starts with Inline Process Monitoring

Detecting micro-deviations on gear geometries at an early stage to eliminate increased noise emissions

Keeping Tomorrow Moving

Highlights and innovation at MPT Expo + Heat Treat 2025

Precision Under Pressure

Meeting the demands of modern gear grinding

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Technical Articles

Experimental Study on the Performance of Plastic Worm Gears

This study examines the implementation and experimental validation of state-of-the-art plastic worm gear design methods, focusing on the VDI 2736 guideline as the most comprehensive reference for load-carrying capacity calculations.

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A Review on Gear Transmission Error

This paper will review the development process, current research status, characteristics, functions, and measurement methods of TE. It will analyze the difficulties and core issues existing in the basic theory of TE, clarify the limitations and deficiencies of TE, and explore ways to overcome the shortcomings of TE.

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Morphology of FZG-A Test Gears

This study explores the failure mode morphology of FZG-A test gears. It aims to examine the orphologies of scuffing, scoring, scratches, and polishing using high-magnification light optical microscopy (LOM) and scanning electron microscopy (SEM) images.

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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).

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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

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. 

Inspection

In conventional gear manufacturing, quality control is carried out for a number of pieces per batch. Most parts enter final gearbox assembly without any inspection. Among other things, this approach is based on two facts: measuring time is significantly longer than the machining time, and the limited measuring capacity available.

Heat Treating

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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Videos

Helios Gear Helps American Precision Gear Achieve Quality and Productivity

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.

Industry News

Gleason Corporation’s Prof. Dr. Hermann J. Stadtfeld, Vice President of Bevel Gear Technology and R&D, has been awarded a new patent for his latest invention, “Psychoacoustic Tooth Flank Form Modification”—also known by its working name MicroForm. The innovation marks his 70th patented invention, continuing a career dedicated to advancing the science and manufacture of bevel gears. Gear Technology caught up with Dr. Stadtfeld to field a few questions about this latest milestone.

Product News

GWJ Technology GmbH from Braunschweig presents the new version of its SystemManager, which serves as an extension for the established calculation solutions eAssistant and TBK. With numerous innovations and optimizations, the software provides engineers with enhanced capabilities for modeling, calculating, and analyzing complex drivetrain systems.

Calendar

AIoT World Expo 2026

Feb 10, 2026 - Feb 12, 2026

The AIoT World Expo (Fort Lauderdale, FL) is the premier event for exploring the convergence of Artificial Intelligence (AI) and the Internet of Things (IoT). This event serves as the gathering point for industry professionals to discover advancements, market opportunities, and understand the transformative power of AIoT across industries. Technologies include scalability, Edge, and AI data analytics, cloud solutions, machine learning (ML), and predictive analytics, cyber security and hybrid models.

CES 2026

Jan 6, 2026 - Jan 9, 2026

PowerGen 2026

Jan 20, 2026 - Jan 22, 2026

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