In electric vehicles, the meshing of the gears can cause disruptive gearbox noise excitations. It is therefore becoming increasingly important for automotive manufacturers and suppliers of electric motors to identify and eliminate the causes of unwanted noise at an early stage. With the LHProcessMonitoring software, Liebherr-Verzahntechnik GmbH has developed a tool that detects deviations during gear production. This saves costs and reduces rejects—and is therefore also of interest to manufacturers of conventional gearboxes.
This work aims to demonstrate the potential benefit of applying nanocomposite coatings to gear teeth to reduce operating friction and wear by presenting tribological test data.
.
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.
.
High-performance plastic gears are increasingly replacing metal gears in several applications due to the many advantages they exhibit. The main ones are lower weight, no need for lubrication, cheaper mass production, significantly better noise, vibration and harshness (NVH) behavior and chemical/corrosion resistance. Most plastic gears are produced by injection molding, which enables great design flexibility, e.g., joining several machine elements into one molded part, while gear geometry modifications like enlarged root rounding or altered profile shapes are also possible (Ref. 1).
.
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.
.
In modern automotive vehicles, gear noise becomes more and more of an issue. The main reason is the reduced masking noise of the engine, which vanishes completely in the case of an electric driveline. Improved gear quality unfortunately does not correlate with a better noise performance in any case. High gear quality makes sure that the gear flanks are inside tight tolerances and that all teeth are nearly identical. Even if the running behavior of such gear sets shows a very low sound pressure level, the noise perception for human ears may be annoying.
The Swabian transmission and drive solutions manufacturer SPN Schwaben Präzision Fritz Hopf GmbH manufactures gearboxes, gears, and drive systems according to individual customer requirements.
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.
Advantages of induction hardening over carburizing, as prepared for the AGMA Metallurgy Committee.
Discover how SECO/WARWICK’s PIT-LPC furnace cuts cycle times by 60%, doubles throughput, and eliminates CO₂ emissions. Learn how vacuum carburizing redefines performance, safety, and sustainability in large-part heat treatment.
Spiroid Gearing delivers precision gearing for advanced mechanical systems engineered to handle extreme torque and complex motion requirements. With unique right-angle gear solutions, our technology enhances efficiency, reliability, and design flexibility. This empowers engineers to push boundaries in aerospace, defense, robotics, and industrial applications where performance and durability are non-negotiable.
CNC Gear Machine Tools: The Strategic Case for Re-controlling AND Re-building Versus New
Setting up an in-house heat treating operation allows businesses throughout many industries to harness this powerful technology and create better-quality metal parts. In this article, Surface Combustion discusses the biggest cost considerations involved in purchasing in-house heat treating technology and investment strategies to ensure you maximize your ROI.
With the introduction of the new 175GMS nano Gear Metrology system, Gleason brings its renowned “nano” sub-micron level inspection capabilities to smaller gears, helping ensure minimal noise, greater precision, and longer life.
At American Precision Gear, quality isn’t just a priority — it’s the foundation of everything they do. The shop specializes in high-precision miniature gears for aerospace, defense, and medical applications, where the strictest tolerances are non-negotiable. Helios Gear Products partnered with American Precision Gear to integrate the MZ 1000 D-Drive into their production.
The Motion + Power Manufacturers Alliance (MPMA) held the annual Fall Technical Meeting (FTM), co-located with the Motion + Power Technology Expo (MPT Expo), last week in Detroit, MI. An awards luncheon was held on the first day of the conference to recognize many individuals who have contributed to the technical community through standards development. Awards were presented to over 30 MPMA technical committee members.
High flexibility in a compact design: The new KNG 5P expert profile grinding machine from Kapp Niles is ideal for the precise machining of external and internal gear teeth. As a next level development of the successful ZE series, it combines the advantages of the previous model with enhanced features. “The KNG 5P expert can be used for a wide variety of applications and enables efficient work with excellent gear quality,” emphasizes Boris Maschirow, Kapp Niles product specialist.
Jan 20, 2026 - Jan 22, 2026
PowerGen (San Antonio, TX) is the premier networking and business hub for power generation professionals and solution providers. It unites power producers, utilities, EPCs, consultants, OEMs, and large-scale energy users. As the industry evolves toward cleaner and more sustainable energy, PowerGen fosters a progressive environment for both established professionals and new energy leaders driving the transition to a more sustainable future. The show invites technology experts, engineers, suppliers, decision-makers and thought leaders to join in exploring innovative solutions, learning from past and present projects and shaping the future of power generation. This includes a focus on The Total Energy Mix: Powering the Future, ensuring that all energy sources are considered in the journey towards sustainability.
Feb 10, 2026 - Feb 12, 2026
Jan 6, 2026 - Jan 9, 2026
Contact | Privacy Policy
©2025 Power Transmission Engineering
Current Issue
Current Issue
Archives
Subscribe
Buyer's Guide
Cutting Tools Gear Blanks & Raw Material Gear Drives Gear Machines Gear Manufacturing Services Gears Grinding Wheels & Abrasive Tools Heat Treating Inspection Equipment Lubricants Machine Tools Resources Services Software Used Machinery Workholding & ToolholdingThe Gear Industry Buyers Guide is your complete directory of suppliers in the gear industry, including great companies like these.
VIEW ALL