April 2021

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April 2021 (Complete Issue PDF)

Feature Articles

Electrification Outlook
An E-Mobility conversation with Jeff Hemphill, vice president and CTO at Schaeffler Group North America.

Electrification Reimagined
A cheat sheet on E-Mobility, electrification, and the push toward a digital future.

Mayr Provides Shaft Couplings for Torque Transducers in FZG Worm Gear Test Stands
For reliable and accurate measurement results, The connection of the measuring shafts used is of particular importance.

Technical Articles

Ask the Expert
Problem with Disk Pack Coupling

An Overview of Fretting Wear
The reasons of this failure, its consequences and mitigation methods.

How Reliable is a Reliability Calculation?
Bearing subsystem life and reliability explained.


Turning the Corner (Publishers Page)
I went to pick up a pizza the other day and had a hard time finding a spot in the restaurant's lot. I was a little surprised by this, because I personally haven't eaten in a restaurant in about a year. But there were lots of people inside, eating at tables - acting almost as if life were normal.

Product News (Product News)
The complete Product News section from the April 2021 issue of Power Transmission Engineering.

Industry News (Industry News)
The complete Industry News section from the April 2021 issue of Power Transmission Engineering.

Where We're Going, We Don't Need Roads! (Power Play)
Why not flying cars? We talk on video screens. We disappear into virtual 3D worlds thanks to Virtual Reality (VR). We have robots working in restaurants. Flying cars are pretty much the last thing from The Jetsons cartoon missing in 2021.