Accession Number:

AD0784140

Title:

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

Descriptive Note:

Corporate Author:

LORD KINEMATICS ERIE PA

Personal Author(s):

Report Date:

1974-06-01

Pagination or Media Count:

75.0

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.

Subject Categories:

  • Helicopters
  • Machinery and Tools

Distribution Statement:

APPROVED FOR PUBLIC RELEASE