April 2012

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April 2012 (Complete Issue PDF)

Feature Articles

Hydraulics & Pneumatics Assessment
The National Fluid Power Association (NFPA) is an organization consisting of manufacturers, distributors, suppliers and educators working together to strengthen the fluid power market. Its mission is to serve as a forum where all fluid power channel partners can advance fluid power technology and successfully compete in the global industrial market.

Sky Science
S.S. White Provides Twisting, Turning Power Transmission with Flexible Shafts

Technical Articles

University Improves Sustainability of HVAC Motors in Platinum LEED Building
A new preventive maintenance program at a leading New England Ivy League university demonstrates how the push for more sustainable "green" building management has led to a growing awareness of a chronic, widespread problem with HVAC motors—electrical bearing damage and failure.

Gearbox Bearing Service Life: A Matter of Mastering Many Design Parameters
The availability of high-strength shaft materials, in combination with bearings with high carrying capacity, allows use of slimmer shafts. However, the modulus of elasticity remains the same, so seat design for bearings and gears must be given close attention.

Achieving High Electric Motor Efficiency
The use of motor structures which can concentrate magnetic flux allows ferrite PM motors to achieve performance and power densities that approach those of PM motors using rare earth magnets, but without the cost penalties and supply source concerns of rare earth magnets.

Departments

How to Become an Expert in Your Field (Publishers Page)
Managing Editor Randy Stott recounts a recent visit to Siemens manufacturing and assembly facilities in Elgin, IL.

Product News (Product News)
The complete Product News section from the April 2012 issue of Power Transmission Engineering.

Calendar (Events)
The complete Technical Calendar from the April 2012 issue of Power Transmission Engineering.

Industry News (Industry News)
The complete Industry News section from the April 2012 issue of Power Transmission Engineering

The Show Must Go On (Power Play)
Nook Customized Components Fit Talk Show Set…By a Thread