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Influence of Tooth Root Contour Deviations on the Tooth Bending Strength

This study investigates how manufacturing-related geometry deviations in the tooth root area affect gear bending strength calculations, demonstrating that accounting for measured tooth contours rather than nominal geometries is essential for accurate material comparisons in fatigue testing.

¡Rápido!

With many of its precision gears produced in small lot sizes, Spanish gear producer Engranajes Juaristi S.L. depends on Gleason machines for exceptional speed and flexibility.

State of the Gear Industry 2026

The gear industry navigates uncertainty, finds pockets of strength, and bets on automation

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Technical Articles

Investigating the Effects of Wear, Lubrication and Material Pairing on the NVH Performance of Plastic Gears

This study systematically evaluates how material selection, progressive wear, and grease lubrication affect the noise, vibration, and harshness (NVH) performance of polymer gears, providing new insights for designing quieter, more optimized transmission systems.

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The Intrinsic Pitch Cones in Hypoid Gears

A method to calculate pitch cones for hypoid gears using macrogeometry parameters—similar to non-offset bevel gears—while accounting for the added complexity of hypoid offset, tooling, and cutting technology is explored in this paper.

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Electric vs. Combustion: A Comparative Analysis of Gear Design for Commercial Vehicle Applications

This paper examines the transition from internal combustion engine (ICE) vehicles to electric vehicles (EVs), highlighting the distinct gear design requirements for each and presenting a comparative case study of gearbox configurations in a 14-ton commercial vehicle.

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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.

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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

Cylindrical grinding is an essential machining process in precision manufacturing, ensuring that components meet stringent tolerances with superior surface finishes. Optimizing this process involves a strategic approach to wheel selection, process automation, in-process measurement and machine maintenance. This article explores key technical factors that influence the efficiency and accuracy of cylindrical grinding operations.

Inspection

In the present paper, a spline-joint design and the extension of a back-to-back test rig were presented, which enable the testing of crowned spline-joints under high rotational speed, medium torque, high test temperature, and angular misalignments.

Heat Treating

Since I have had the privilege of visiting numerous gear plants and research centers in the U.S., as well as 170 in 33 countries, and I closely watch the progression of technology, I wanted to share my observations about some technological advancements. For the purpose of this article, I will focus on three key areas: Robotics, Machine Tools, and Heat Treating.

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Videos

Forest City Gear Knows Robots!

Forest City Gear manufactures extremely high-precision gears made for the most advanced robotics, right in Roscoe, IL.  This family-owned team of gearheads specialize in high-precision gears engineered to handle the most demanding robotic applications—on Earth, and way beyond.

Industry News

Mazak Corp. will host its inaugural Discover More With Mazak Phoenix Open House event from April 28–29 at the Mazak Phoenix Technical Center. The event will feature live cutting demonstrations on a wide range of advanced machining technology, including Swiss-type production turning, Multi-Tasking, 5-axis and Kentucky-built vertical machining, and next-generation horizontal machining. Attendees will also meet with industry experts to discuss the latest innovations and insights. 

Product News

Weiler Abrasives announced the new Tiger 3D MAX Ceramic flap discs and blending discs, which are products built for maximum material removal, durability and consistency. This expansion of the 3D MAX lineup brings advanced precision-shaped grain technology to a wider range of grinding applications.

Calendar

Fabtech Canada

Jun 9, 2026 - Jun 11, 2026

Fabtech Canada (Toronto) is the country’s premier event for the metal forming, fabricating, welding, and finishing industries. With live exhibits and hands-on demonstrations, it’s a vital platform for networking, innovation, and staying ahead in Canada’s advanced manufacturing landscape. Exhibitors include Hexagon, Epicor, Wintriss ISB, IKO Thompson Bearings Canada, ABB, Yaskawa and more.

Hannover Messe 2026

Apr 20, 2026 - Apr 24, 2026

SME Fusion 2026

May 5, 2026 - May 6, 2026

WorldPM2026

Jun 25, 2026 - Jun 29, 2026

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The Gear Industry Buyers Guide is your complete directory of suppliers in the gear industry, including great companies like these.


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