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Corrections

Home » Topics » Design » Corrections
  • August 1, 2015

    Tooth Flank Fracture - Basic Principles and Calculation Model for a Sub-Surface-Initiated Fatigue Failure Mode of Case-Hardened Gears

    Cracks initiated at the surface of case-hardened gears may lead to typical life-limiting fatigue failure modes such as pitting and tooth root breakage. Furthermore, the contact load on the flank surface induces stresses in greater material depth that may lead to crack initiation below the surface if the local material strength is exceeded. Over time the sub-surface crack propagation may lead to gear failure referred to as “tooth flank fracture” (also referred to as “tooth flank breakage”). This paper explains the mechanism of this subsurface fatigue failure mode and its decisive influence factors, and presents an overview of a newly developed calculation model.
  • July 1, 2015
    By Dwight Smith

    I Like Big Gears and I Cannot Lie!

    Many years ago, when asked how the five-meter gear was checked, the quality manager responded, “When they’re that big, they’re never bad!” That may have been the attitude and practice in the past, but it no longer serves the manufacturer nor the customer. Requirements have been evolving steadily, requiring gears to perform better and last longer.
  • June 1, 2015

    Good Morning, Class

    Since we began publishing in 1984, Gear Technology's mission has been to educate our readers. For 31 years, we've shown you the basics of gear manufacturing as well as the cutting edge. We take our educational mission quite seriously, and we go through steps that most publishers don't have time for or wouldn't consider.
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  • September 1, 2012

    IMTS 2012 Product Preview

  • January 1, 2010

    Producing Profile and Lead Modifications in Threaded Wheel and Profile Grinding

  • January 1, 2005

    Tooth Flank Corrections of Wide Face Width Helical Gears that Account for Shaft Deflections

  • July 1, 1994

    Effect of Extended Tooth Contact on the Modeling of Spur Gear Transmissions

  • November 1, 1991

    Viewpoint

  • September 1, 1988

    Calculation of Optimum Tooth Flank Corrections for Helical Gears

  • March 1, 1986

    Viewpoint

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Blog Posts

  • June 24, 2020
    By Charles D. Schultz

    Mid-Game Adjustments

  • December 6, 2018
    By Charles D. Schultz

    Out With the Old

  • September 14, 2018
    By Charles D. Schultz

    The Usual Suspects

  • February 5, 2014
    By Charles D. Schultz

    Practical Magic

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Authors

  • Charles schultz
    Charles D. Schultz
  • Dwight smith
    Dwight Smith
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