• TOPICS
    • Design
    • Manufacturing
    • Inspection
    • Heat Treating
    • Lubrication
    • Materials
    • The Gear Industry
    • Gears by Type
  • MAGAZINE
    • Current Issue
    • Departments
    • Archives
    • Subscribe
    • Advertise
  • NEWSLETTER
    • Subscribe
  • VIDEO
    • Gear Technology TV
      • Ask the Expert Live
      • Revolutions
    • Industry Videos
  • BLOGS
  • BUYER'S GUIDE
  • NEWS and EVENTS
    • Product News
    • Industry News
    • Events
  • ADVERTISING
    • Brand Awareness
      • Print: Display Advertising
      • Online: Web Banners & Keyword Banners
      • Online: Native Advertising (Sponsored Content)
      • E-mail: Custom, White Papers & Webinars
      • E-mail: Newsletter Sponsored Content (Native Advertising)
    • Response & Lead Generation
      • Online: Sponsored Content (Native Advertising)
      • E-mail: Newsletters
      • E-mail: Newsletter Sponsored Content (Native Advertising)
      • E-mail: Custom, White Papers & Webinars
      • Online: Buyers Guide
    • Print Advertising
      • Print: Display Advertising
      • Print: IMTS Showstoppers
      • Print: Buyers Guide
      • Print: Manufacturing sMart
      • Print: Specifications
    • Online Advertising
      • Online: Web Banners & Keyword Banners
      • Online: Native Advertising (Sponsored Content)
      • Online: Buyers Guide
      • Online: Specifications
    • E-mail Advertising
      • E-mail: E-Newsletters
      • E-mail: Newsletter Sponsored Content (Native Advertising)
      • E-mail: Custom, White Papers & Webinars
      • E-mail: Specifications
    • Special Promotions
      • Print: IMTS Showstoppers
      • Print: Buyers Guide
      • Print: Manufacturing sMart
  • CONTACT US
  • AGMA
    • Membership
    • Events
    • Education
    • Emerging Technology
    • AGMA Media
    • Standards
Subscribe
  • Sign In
  • Create Account
  • Sign Out
  • My Account
Home » Surface Pitting Fatigue Life of Noninvolute Low-Contact-Ratio Gears

Surface Pitting Fatigue Life of Noninvolute Low-Contact-Ratio Gears

May 1, 1991
Spur gear endurance tests were conducted to investigate the surface pitting fatigue life of noninvolute gears with low numbers of teeth and low contact ratios for the use in advanced application. The results were compared with those for a standard involute design with a low number of teeth. The gear pitch diameter was 8.89 cm (3.50 in.) with 12 teeth on both gear designs. Test conditions were an oil inlet temperature of 320 K (116 degrees F), a maximum Hertz stress of 1.49 GPa (216 ksi), and a speed of 10,000 rpm. The following results were obtained: The noninvolute gear had a surface pitting fatigue life approximately 1.6 times that of the standard involute gear of a similar design. The surface pitting fatigue life of the 3.43-pitch AISI 8620 noninvolute gear was approximately equal to the surface pitting fatigue life of an 8-pitch, 28-tooth AISI 9310 gear at the same load, but at a considerably higher maximum Hertz stress.
Design Heat Treating Materials The Gear Industry Contact Ratio Fatigue Involute Ratio Induction Hardening Tempering Pitting Sectors Aerospace Technical
KEYWORDS aerospace gears fatigue low contact ratio noninvolute gears pitting
  • Download This Article

  • Related Articles

    Effect of Shot Peening on Surface Fatigue Life of Carburized and Hardened AISI 1910 Spur Gears

    Innovative Induction Hardening Process with Pre-heating for Improved Fatigue Performance of Gear Component

    Controlling Gear Distortion and Residual Stresses During Induction Hardening

Free Gear Technology Subscriptions
Subscribe
Free Gear Technology Subscriptions
Subscribe
FEATURED VIDEO
  • A Look at Helios Gear
March 14, 2019
RECOMMENDED
  • LPC Carburizing: The Affordable Alternative to Gas Carburizing

    April 25, 2022
    Nitrex2.jpg
  • Hardness Testing Gears — Know Your Options for Best Results

    April 25, 2022
    Starrett1.jpg
  • Kapp Niles Examines Intelligent Rolling Grinding for E-mobility

    April 25, 2022
    Opening Image.jpg
  • Making Gear Grinding Transparent

    May 19, 2022
    Picture6.png
  • The Numbers Game

    May 19, 2022
    Toolx7-featured.jpg
  • Making Gear Grinding Transparent

    May 19, 2022
    Picture6.png
  • The Numbers Game

    May 19, 2022
    Toolx7-featured.jpg
  • LPC Carburizing: The Affordable Alternative to Gas Carburizing

    April 25, 2022
    Nitrex2.jpg
  • Subscribe
  • Advertise
  • Contribute
  • AGMA
Powered byAGMA
Copyright © 2022 Gear Technology
  • Privacy Policy
  • Contact