Accession Number : AD0784140

Title :   Endurance Testing of an LM-726-4 Elastomeric Pitch Change Bearing

Corporate Author : LORD KINEMATICS ERIE PA

Personal Author(s) : Myers, David L

PDF Url : AD0784140

Report Date : Jun 1974

Pagination or Media Count : 75

Abstract : Presented in the report are the results of a 2000-hour endurance test on the LM-726-4 elastomeric pitch change bearing designed for the all- elastomeric rotor in the AH-1G helicopter. The LM-726-4 is an improved version of a previously tested pitch change bearing incorporating several design modifications with the goal of improving fatigue life. Testing was conducted to form a basis for determining the airworthiness of the bearing in terms of expected reliability and inspection and replacement criteria.

Descriptors :   *BEARINGS, ELASTOMERS, ENDURANCE(GENERAL), HELICOPTER ROTORS, ROTORS

Subject Categories : Helicopters
      Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE