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Precision Under Pressure

Meeting the demands of modern gear grinding

As gear manufacturers face increasing pressure to meet tighter tolerances, achieve higher profile accuracy, and deliver superior surface finishes, grinding technology is playing a more central role than ever in precision transmission manufacturing. Norton Saint-Gobain Abrasives is addressing these challenges head-on with the rollout of its next-generation grinding solutions—most notably, a new bond system known as VS3PN.

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

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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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3D Scan-Based Reverse Engineering of Differential Bevel Gears

This study aims to propose a robust reverse engineering methodology for straight bevel gears, especially for those found in inter-wheel differentials.

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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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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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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

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.

Inspection

When electric drives are used in vehicles, the masking effect of an internal combustion engine disappears, allowing the noise behavior of the transmission to take center stage. At the same time, peak power and torque increase, engine speeds increase, and power must be transferred optimally in both directions due to the regenerative braking system. Conventional design parameters remain important, however: The build space is limited, durability must not be compromised, and the product must still be cost-efficient. Optical metrology as part of a hybrid measurement concept helps to overcome all these challenges.

Heat Treating

Heat Treat 2023 is the Heat Treating Society’s 32nd conference and expo for heat treating professionals featuring three days of face-to-face networking opportunities with approximately 200 heat treat exhibitors/companies. All the top heat-treating companies will offer the latest research and industry insights during more than 100 technical programs. This year’s show includes a VIP-guided industry tour, as well as student/emerging professionals initiatives, including free college student registration, Fluxtrol Student Research Competition, and the ASM Heat Treating Society Strong Bar Student Competition. Heat Treat 2023 is colocated with Motion + Power Technology Expo 2023 with access to additional exhibitors. The event takes place October 17–19, 2023 at Huntington Place in Detroit.

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Videos

Kapp Niles ZP Series

Gear Profile Grinding Machine ZP 10 with automatic tool changer from Kapp Niles. The machine concept stands for maximum workpiece quality, flexibility and a long service life. The basic machines are equipped with a dresser, integrated measuring device, balancing unit and comprehensive software. The machines feature generously dimensioned rotary tables with electrical direct drive and large rotary table bores.

Industry News

Sandvik Coromant, a global leader in metal-cutting tools and solutions, has appointed Steve Lind as Vice President Sales, Eastern U.S. In this role, Lind will lead the sales region’s commercial strategy and execution, strengthen cross-functional collaboration and accelerate customer value across key manufacturing segments, including aerospace, automotive, medical and general engineering.

Product News

The KISSsoft System Module allows you to predefine virtually any possible combination of shifting positions and boundary setups in a transmission or gearbox. They are then combined into Operating Modes.  These operating modes specify which clutches, switching elements, or brakes are active and which load is applied at specific system boundaries at a given situation.  A typical example is when a gearbox is driven by multiple motors, like in a Dual Motor EV gearbox and different load combinations and/or power flow directions (changes from driving to coasting condition or from motor to generator mode) need to be analyzed. 

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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