December 2013

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December 2013 (Complete Issue PDF)

Feature Articles

Napoleon Engineering Services: Rigged for Success
For design engineers and purchasing agents alike, bearings can sometimes be like family. Oh, you know - can't live with 'em, can’t live without 'em.

The Efficient Drive System
It's a fact that drive systems wouldn't function properly or efficiently without couplings. They quietly go about their business of transferring motion from one drive element to the next. In the PT market today, couplings have the unique challenge of satisfying a variety of customer needs including tighter tolerances, higher speeds and a more versatile selection process.

Categories - Buyers Guide 2013
Our comprehensive 2013 directory of mechanical power transmission components suppliers by category.

Buyers Guide 2013 A to Z
Complete contact information for 800 leading suppliers of mechanical power transmission components and related companies and organizations.

VIPS - Very Important Products and Services
This special advertising section features Very Important Products and Services as part of our 2013 Buyers Guide.

Technical Articles

How To Use a Hand-Held Micrometer to Measure Miniature and Instrument Ball Bearings
For the most accurate measurements, miniature and instrument ball bearing dimensions should be measured with a calibrated air gauge. A good second option is a calibrated optical comparator. On occasion, it may be necessary to use a calibrated, hand-held micrometer to double-check a measurement or for simple verification while working in the field.

Crowning Spur Teeth - Ask the Expert - December 2013 PTE
When designing spur teeth, is there a formula/guideline/design guide for determining the amount of crowning?

The Workhorse of Industry: The Induction Motor
A brief overview of the induction motor, including the basics of construction, performance and variable speed drives.

Inexpensive Methods to Measure the Performance Characteristics of a Linear Motion Device
This article describes a series of tests that can be performed by the average user, with little experience, and without sophisticated measuring instruments, to quickly determine the most important performance characteristics of linear motion systems.

Should You Pay a Premium for a Mounted Ball Bearing
Mounted ball bearings are everywhere in industrial applications. They serve critical roles in keeping a manufacturing operation running smoothly and in ensuring that equipment functions properly and reliably. So why might it be advisable to spend significantly more for a dimensionally comparable bearing from one supplier versus another?


PTE on a Growth Path (Publishers Page)
A core part of what we do here is making sure that our readers – the people who design, buy and use mechanical power transmission products – know where to find the suppliers of technology they need.

The Ugly, the Bad and the Good - Global Industrial Outlook - December 2013 PTE (Market Update)
Global economic demand remains solid - even if you couldn't tell by recent third-quarter results and despite all efforts by U.S. politicians of both political parties. Let's go through what happened and what is coming.

Product News (Product News)
The complete Product News section from the December 2013 issue of Power Transmission Engineering.

Calendar (Events)
The complete Calendar from the December 2013 issue of Power Transmission Engineering.

Industry News (Industry News)
The complete Industry News section from the December 2013 issue of Power Transmission Engineering.

A Mechanical Melange of Art, Movement and Memory (Power Play)
A brief history of automata, featuring Henri Maillardet's automaton at the Franklin Institute.