In most cases, industrial power transmission calls for flexible rather than rigid couplings in order to forgive minor shaft misalignment. For that reason, this article will focus solely on the selection of flexible couplings.

Seal design engineers and end users are continually seeking improved sealing systems and materials. This paper describes the potential of a new thermoplastic polyurethane (TPU) material to deliver improvements in pressure, speed and temperature capability, which are presented as comparisons to proven industry standard materials. Performance is demonstrated by virtue of test bench results of seals made from MDI-, PPDI- and NDI-based materials.

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.

Managing Editor Randy Stott recounts a recent visit to Siemens manufacturing and assembly facilities in Elgin, IL.

Though the original definition of mechatronics derived from the Yasakawa Electric Company in the late 1960s (the company won trademark rights for the term in 1973), the word has remarkably evolved.

This special product news section takes a look at the latest in motion control products.

The complete Product News section from the August 2011 issue of Power Transmission Engineering

A new solution has been developed around the use of microprocessor-controlled prostheses. Just like natural limbs, these can react automatically, adapting to the current situation.

Maximizing packaging machine productivity and performance is imperative to success and is driving OEMs to adopt and invest in the latest technologies that can meet their customers’ challenges. At the forefront of these performance-driven technologies is an integrated control system—or programmable automation controller (PAC)—and latest-generation motion solutions.

The complete Product News section from the April 2011 issue of Power Transmission Engineering.