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Drivetrain Integration

Flender unveils the next generation of wind gearboxes

Logistics, transportation and maintenance have always been critical challenges in wind turbines. There’s truth to the notion that large components can cause bigger headaches on their massive size and scope alone. A smaller, compact drive solution can help eliminate today’s renewable energy challenges while reducing costs.

High-Volume Holemaking for Gear Production Success

Consider exchangeable-tip solid round cutting tools for durability, precision, and performance

Profile Grinding of Large Gears

Increasing material removal efficiency through advanced infeed strategies

Gear Heat Treatment Selection with a Duty Test Matrix

A practical framework for matching requirements to process routes and proof tests

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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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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.

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Water Spray Quenching—A New Intensive Quenching Process for Case Hardening of Gears

Water spray quenching achieves heat transfer coefficients up to 4,000 W/(m²K)—nearly double conventional oil quenching rates—enabling potential material substitution and tailored quench intensity for complex gear components.

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Design

For cylindrical gears, speed-increasing transmission stages are well known, and regarding profile shift, preferred pressure angles, and helix angles a set of rules applies, which is not much different from the rules for speed reducers. It is important to acknowledge that basically, a speed increaser has to be designed just like a speed reducer, but then the gear with the lower number of teeth is the output. Of course, the torque and the speed of the gear with the lower number of teeth (output) and the gear with the higher number of teeth (input) must be the same as if this transmission was used as a speed reducer. In the case of straight bevel gears, spiral bevel gears, and hypoid gears the same rules apply with some additions. Spiral bevel gears have many applications as speed increasers.  

Grinding

The Swabian transmission and drive solutions manufacturer SPN Schwaben Präzision Fritz Hopf GmbH manufactures gearboxes, gears, and drive systems according to individual customer requirements.

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

By understanding customers’ manufacturing and heat-treatment processes, Ipsen identifies pain points and develops IIoT and AI-driven solutions that improve operational efficiency.

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Videos

Penta Gear Focus

As a brand of Kapp Niles, Penta Gear designs, manufactures, and installs analytical metrology machines, while performing as a trusted source for contract gear and spline inspection.

Industry News

Nidec promoted Tim Schamel to president of Nidec Commercial and Industrial. The company has also named Tim Albers as chief technology officer. 

Product News

Metal cutting specialist and manufacturing solutions provider Sandvik Coromant has upgraded its tool reconditioning service for solid, round cutting tools to give manufacturers complete control over their reconditioning process. The upgraded service replaces a previously manual, multistage workflow with a streamlined, fully online experience that dramatically reduces quoting and turnaround times.

Calendar

The Manufacturing Engineering Division (MED) of ASME sponsors the Manufacturing Science and Engineering Conference (MSEC) every June. MSEC (State College, PA) is the annual forum for the exchange of advanced manufacturing research knowledge. It is intended to disseminate the most recent developments in manufacturing research through technical presentations, poster sessions and panel sessions. The event is hosted by Penn State University.

WZL Gear Conference USA

Jul 15, 2026 - Jul 16, 2026

Gear Up for Precision Open House

Jun 9, 2026 - Jun 10, 2026

Fabtech Canada

Jun 9, 2026 - Jun 11, 2026

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