The last stronghold for herringbones was — and remains — the venerable oil field pumpjack gearbox. Although known by a variety of other names, noth...

Imagine for a moment that your boss invented the herringbone tooth form and tasked you with building machines to cut them. This was the situation P...

Gear Expo was a wonderful opportunity to meet old friends and make new ones. While I was out collecting swag, purely in support of my reporting dut...

One of the neat things about the Gear Expo is seeing people you once worked with. Sometimes though, they remember your interactions in greater deta...

We've decided to install a man-cave at our office here at Randall Publications. Comfy chairs, surround sound, flat screen, the works. We're going all out, because we have some important watching to do. But before you get the wrong idea, we're not goofing off and binge-watching Stranger Things. No, we're watching Gear Technology TV.

Although gear geometry and the design of asymmetric tooth gears are well known and published, they are not covered by modern national or international gear design and rating standards. This limits their broad implementation for various gear applications, despite substantial performance advantages in comparison to symmetric tooth gears for mostly unidirectional drives. In some industries — like aerospace, that are accustomed to using gears with non-standard tooth shapes — the rating of these gears is established by comprehensive testing. However, such testing programs are not affordable for many other gear drive applications that could also benefit from asymmetric tooth gears.

A reader asks about ion-nitride finished shafts and the proper friction coefficient to be used for calculations.

In this issue's column, Joe lays out the basic truth for most manufacturing companies: If you're not moving forward, you're falling behind.

This special edition of Product News includes highlights from Gear Expo 2017 of new products that caught the editors' eyes.