June 2021

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Feature Articles

Hybrid Gear Metrology with Klingelnberg
An overview of tactile and optical gear metrology

Mitutoyo Examines Modern Gear Measurement
When it comes to modern gear measurement, there are still essentially two primary tools that shops use. The first is a machine dedicated solely to measuring gears, which had been the primary method for many years, until recently.

The Measure of Success
Software advancements in gear metrology/inspection.

Technical Articles

Changes in ISO 6336:2019 - Parts 1, 2, 3, 5 and 6
Changes in the third edition of parts 1, 2, 3, 5 and 6 compared to the previous edition (from the year 2006 for parts 1, 2, 3, 6 and from the year 2003 for part 5).

Drive Concepts using Super Reduction Hypoids Combined with Cylindrical Gear Reductions
Why Transmissions in Electric Vehicles?

Quasi-Static Transmission Error Behavior Under the Composite Effect of Temperature and Load
Given the lack of information on thermal distortion effects in small size steel gears, an experimental study of quasi-static transmission error behavior under thermomechanical conditions is presented.

Departments

How Do You Make the Perfect Gear? (Publishers Page)
Okay, I'll admit it. It's a trick question, because of course there's no such thing as a perfect gear. There will always be manufacturing errors, inconsistencies and human error. Tools and machines wear down, so that the first gear you produce will always be different from the one hundredth.

Product News (Product News)
Gear-related new technology from Affolter Group, Liebherr, PTG Holroyd, BMW Motorrad and more.

Industry News (Industry News)
The latest news from Nordex, Gleason, Solar Atmospheres, and more.

Not Your Average Drone Delivery (Addendum)
It’s getting complicated. First it was the Amazon packages dropping into the backyard via an unmanned vehicle. This was followed by numerous companies working on autonomous vehicles for buses, taxis and even two-seater air shuttles. Now, a prototype unmanned aerial tanker refueled a F/A-18F Super Hornet fighter jet in early June. That’s right—a drone just refueled a fighter jet in mid-air.