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Smart Alloying Eliminates Manufacturing Steps in Automotive Gears

20NiMo9-7 alloy achieves up to 48 percent higher fatigue strength than conventional carburizing steels in the as-carburized condition, eliminating the need for shot peening and grinding in automotive gear applications.

Gear Heat Treatment Selection with a Duty Test Matrix

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

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

Drivetrain Integration

Flender unveils the next generation of wind gearboxes

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Technical Articles

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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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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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

Grinding

The way to increase production, especially with the largest gears, is to decrease nonproductive time with improved strategies.

Skiving Tools

Klingelnberg recently invited customers to its first Open House in Saline and the two-day event did not disappoint. Customers from major automotive, off-highway, construction and agriculture OEMs attended a morning of technical presentations before heading into the showroom to learn more about Klingelnberg’s latest machine tool technology.

Heat Treating

Gas carburizing has been around for a long time. One could argue that gas carburizing is the most common heat treating process. Heat treaters performing gas carburizing are often characterized by a dirty environment, hazy surroundings, and that “smell.” While the product quality may be acceptable, gas carburized parts do come with some challenges, like excessive intergranular oxidation (IGO) or intergranular attack (IGA), which is often ground off. Low-pressure carburizing (LPC) has proven to be a much cleaner and very capable alternative process. Most furnace companies have combined LPC with high pressure gas quenching, which moved carburizing from the dark back room to a relatively “clean room” environment. However, there is still a strong need for oil quenching, which is the common feature of the long used standard integral-quench (IQ) furnace.

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Videos

If This Old Machine Can Be Automated, Yours Can Too

Productive Robotics sets the new standard for simplifying robotic automation. OB7 ensures simplicity in use and versatility, easy automation of existing production and new set-ups, increased output, consistency, and quality. It emphasizes teaching the robot rather than programming. Productive Robotics' OB7 collaborative robots are currently used in many diverse applications due to their simplicity, capability, and affordability.

Industry News

The Motion + Power Manufacturers Alliance (MPMA) today announces new Board, Officers, and other leadership changes for 2026–2027. Joining the Board of Directors are Michael Kapp, General Manager of KAPP NILES and Jared Scott, National Training Manager, SEW-Eurodrive.  MPMA members elected the two leaders at their Annual Meeting, held April 23-26 at the Sunseeker Resort in Port Charlotte, FL.  They will begin their three-year terms at the August 2026 Board Meeting.

Product News

FVA-Workbench 11.0.0 is now available. This manufacturer-neutral simulation platform for modeling, parameterization, and calculation of transmission systems has been enhanced with numerous new features.

Calendar

Furnaces North America (FNA) 2026

Oct 12, 2026 - Oct 14, 2026

FNA (Indianapolis) is produced by the Metal Treating Institute (MTI) with media partner Heat Treat Today. The heat treat-only trade show and technical conference includes the latest products and technologies on industrial furnaces and ovens, atmosphere generation and control, quenching systems and quenchants, induction heating equipment, vacuum furnaces and pumps, heat treat software and controls and more

TPS (Turbomachinery & Pump Symposia) 2026

Sep 22, 2026 - Sep 24, 2026

WZL Gear Conference USA

Jul 15, 2026 - Jul 16, 2026

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