Application of Face-Gear Drives in Helicopter Transmissions

[+] Author and Article Information
F. L. Litvin, J.-C. Wang

University of Illinois at Chicago, Chicago, IL 60680

R. B. Bossler

Lucas Western, Incorporated, City of Industry, CA 91749

Y.-J. D. Chen, G. Heath

McDonnell Douglas Helicopter Company, Mesa, AZ 85205

D. G. Lewicki

Lewis Research Center, Cleveland, OH 44135

J. Mech. Des 116(3), 672-676 (Sep 01, 1994) (5 pages) doi:10.1115/1.2919434 History: Received May 01, 1992; Online June 02, 2008


The use of face-gears in helicopter transmissions was explored. A light-weight, split torque transmission design utilizing face-gears was described. Face-gear design is discussed. Topics included basic design geometry, tooth generation, limiting inner and outer radii, and recommendation for the gear ratio. Face-gear experimental studies were also included and the feasibility of face-gears in high-speed, high-load applications such as helicopter transmissions was demonstrated. Torque-split tests were performed and demonstrated an accurate split of torque using the face-gear concept.

Copyright © 1994 by The American Society of Mechanical Engineers
Topics: Gears
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In