May 2021

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Feature Articles

Making Room for Productivity and Quality Requirements in Gear Grinding
A look at how gear grinding comes with unique production challenges.

Driving Down Gear Noise in E-Mobility
Gleason Combi Honing system meets eDrive transmission standards.

Technical Articles

Material Properties and Tooth Root Bending Strength of Shot Blasted, Case Carburized Gears with Alternative Microstructures
Selected results of research project concerning the above mentioned material properties and tooth root bending strength.

Psychoacoustics Applied to eDrive Noise Reduction
Physical effects that cause transmission noise.


Grinding it Out (Publishers Page)
My wife, Wendy, and I have been taking on a lot of DIY home improvement projects lately around the house.

Three Things Needed from Every Power Transmission Company (Voices)
In our association, we might be suppliers, partners, customers or competitors, but in the end, we are one industry — and now is the time when we need to come together and move the industry forward.”

Product News (Product News)
Gear-related new technology from Liquidtool Manager, Marposs, EDM Intelligent Solutions, Helios Gear Products, Kapp Niles Metrology and more.

Gear Noise Cause of a Different Stripe (Ask the Expert)
“ It is very hard to find out any paper regarding ‘tiger stripes’ failure, created by electrical discharge current over the gear teeth.” I wish to have some more information on this issue + how it affects the vibration / noise signatures; why does it creates the tiger stripes profile; how deep are the pittings; why does it create the noise and the possibility of running a gear with this failure?”

Industry News (Industry News)
The latest news from DVS Technology Group, Gear Motions, Amorphology, Star Cutter and more.

Artwork with Gear Teeth (Addendum)
In Homewood AL, driving up to the Valley Hotel, you might think its 25-foot-tall sculpture is wooden, but it’s not. It’s metal.