October 2013

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October 2013 (Complete Issue PDF)

Feature Articles

Buying In to Commodity Buyers
The challenge facing OEM procurement organizations is that the organizations themselves need improving before they can be proficient in a cost reduction program.

Musical Gearboxes
Dave Soma, the mechanical supervisor at Leland Olds Station, a coal-fired power plant near Stanton, North Dakota, says he and his maintenance team care deeply about keeping the plant running and providing people electricity, especially in the dead of winter.

Technical Articles

How to Design a Spur-Crown Gear Set
When designing a spur-crown pair, is there a formula, guideline or design guide for adapting the spur teeth for the radial angle of the teeth in the crown?

Grease Lubrication Mechanisms in Rolling Bearing Systems
Grease lubrication has clear advantages over oil lubrication: Grease does not leak easily; it has sealing properties; and it protects bearing surfaces from corrosion. Its disadvantages are grease-life limitations and a limited cooling ability. Moreover, in some applications there is a risk of grease starvation, which leads to reduced lubricating films. However, if the right grease, sealing system and/or lubrication system are chosen, then grease lubrication offers clear benefits. This article summarizes aspects of grease lubrication mechanisms in rolling bearings.

Microstepping Tutorial
This article describes the challenges involved in designing and implementing microstepping systems.

Drive and Motor Basics
A discussion of the basics in DC drives, DC motors, AC drives, AC motors and synchronous motors.


Seeking Suppliers (Publishers Page)
Last month's Gear Expo in Indianapolis provided a great opportunity to meet potential suppliers of mechanical power transmission components -- mostly gears and gear drives, of course, but also a smattering of suppliers of bearings and motors as well.

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

A Focus on the Future at Pack Expo 2013 (Events)
More than 27,000 packaging and processing professionals attended Pack Expo 2013 in Las Vegas from September 23–25. In addition to launching new products, creating brand awareness, achieving sustainability goals and generating new business contacts, Pack Expo was an opportunity to engage the next generation of workers in packaging, robotics and processing applications.

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

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

Ready for Some Hyper Loop de Loop (Power Play)
High-speed transit system the dreamwork of ideators or idiots?