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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.

State of the Gear Industry 2026

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

¡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.

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Technical Articles

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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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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Design

The toothed belt and pulley system known by the designation T, which has been selected as an example within this paper, was developed in the 1950s and standardized first in DIN 7721 (1977) and then in ISO 17396:2014. In this case study, the authors check if a single hob can properly cut T5 profile pulleys with 25 and 30 teeth—and if
so, define the range of the number of teeth covered by this hob.

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

Complete inspection of gear surface finishes at the submicron level became a reality with the introduction of Gleason’s 300GMS nano, in 2022. The new system ushered in an exciting new era in gear inspection. For the first time, producers of EV transmission gears, and gears for other applications requiring very tight tolerances and low noise requirements, could quickly inspect surface finishes and perform extremely reliable noise analysis at submicron levels—benefits that were almost impossible to achieve just a few years ago.

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

Diamond Dressing Wheels by Kapp Niles

Kapp Technologies L.P., the North American subsidiary of the Kapp Niles Group, has taken a significant step toward strengthening its domestic manufacturing capabilities. The company has successfully launched in-house production of diamond dressing tools at its Boulder, Colorado facility — marking a major milestone in its U.S.-based operations.

Industry News

Trying to make sense of where tariff and trade policy are headed this year? Join the MPMA for a timely webinar for an update on all the latest trade developments related to the motion and power industry.

Product News

Seco releases the 335.18 disc milling cutter, a robust and customizable slotting solution engineered for real-world manufacturing. With over 70 standard variants and full customization via MyDesign, the 335.18 delivers stable, cost-efficient performance for any industry, machine, or material enabling manufacturers to achieve precision and reliability in every slotting operation.

Calendar

AeroDef Manufacturing 2026

Apr 13, 2026 - Apr 16, 2026

In 2026, AeroDef Manufacturing is represented on the national stage by a multifaceted showcase at RAPID + TCT 2026.

Reliable Plant 2026

Jun 15, 2026 - Jun 18, 2026

Cleanpower 2026

Jun 1, 2026 - Jun 4, 2026

American Manufacturing Summit 2026

Mar 17, 2026 - Mar 18, 2026

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Buyer's Guide

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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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