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Power Transmission Engineering E-mail Newsletter February 2014 Edition

Your Monthly Resource on Mechanical Power Transmission

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Top Articles

  • Specifying a Gear - Ask the Expert - A reader asks what are the required parameters to properly specify a gear.
  • How to Spec a Mill Gear - This paper outlines the design considerations that go into construction of a drive system in order to explain the importance of specific data, why it is required, and where design freedom is necessary. Apart from loads and speeds, interface dimensions and site specific conditions are also needed. Deciding up front which gear rating practice to select can affect the torque capacity of the drive train by ~15%
  • Influence of Gear Loads on Spline Couplings - Involute splines are commonly used in gearboxes to connect gears and shafts, especially when high torque is transmitted through the coupling. The load is shared among multiple teeth around the coupling circumference, resulting in higher load capacity than a conventional single key. However, the total load is not equally shared among all spline teeth, mainly because of pitch deviations resulting from the manufacturing process. The load distribution along the spline engagement length is also nonuniform because of tooth misalignments and shaft torsional effects. This paper presents an investigation of the influence of spur gear loads on the load distribution of spline teeth.

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Free Tutorial on Metal Bellows Couplings

Over the past few years the metal bellows has been employed in an increasing number of critical machine drive applications. Its unique characteristics can help optimize positioning accuracy, balance, service life, and system stability. In this paper we explore where they came from, why they're used, and other best practices...

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Gear Technology Blog

Join Gear Technology Technical Editor Charles D. Schultz in dicussions about gear standards, training, the history of gearing and much more at the Gear Technology blog. In his most recent post, Schultz is "Hunting for an Argument" about the need for a hunting tooth ratio in gear design. Comments and contributions are welcome...

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Latest News

Here's the latest from the mechanical power transmission industry.

CSIA Members Produce Automation Solutions
Plant managers, operations executives and other decision-makers across a broad spectrum of industries that rely on industrial automation for their success increasingly recognize the value of working with members of the Control System Integrators Association (CSIA)...Read more.

Kollmorgen Expands Dealer Network in India
Kollmorgen is expanding its presence in India. The motion control specialists completed a distributor agreement with the Ruju Corporation at the recent SPS/IPC/Drives Expo in Nuremberg...Read more.

Emerson Offers LifeCycle Engineering Services
Power Transmission Solutions, a business of Emerson Industrial Automation, offers a new model for enhancing the performance of critical material handling and mechanical power transmission systems with a new business unit providing Lifecycle Engineering Services... Read more.

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