Aircraft Engine Driven Accessory Shaft Coupling Improvements Using High-Strength Nonmetallic Adapter/Bushings
Abstract
Engine driven accessories, such as generators, starters, and pumps, are commonly connected to their respective power takeoff shafts by splined couplings. These shaft couplings, which allow rapid installation and removal of the accessory, are capable of high torque transmission and are considered to be self-centering. However, because of their rapid wear and failure rate, NAVAIRTESTCEN has engaged in a continuing spline coupling improvement program over the past 11 years. An outgrowth of this program has been the development of the new high-strength nonmetallic spline coupling adapter/bushing technology. Previous Technical Memoranda, TM 76-1 SY and TM 78-1 SY, condensed the results of these coupling improvement efforts into a description of two basic spline coupling designs (crowned circular toothed and flat toothed splines), explained their apparent success, and presented limited application and manufacturing information. This report presents a summary of the new coupling designs which have been evaluated or are planned for future tests. Previously unpublished test data and the latest applicable Military Standard Drawings are also contained therein.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 20, 1979
- Accession Number
- ADA068637
Entities
People
- Aleck Loker
Organizations
- Naval Air Station Patuxent River