Accession Number:

AD0607513

Title:

INVESTIGATION OF FRICTION, WEAR, AND FAILURE IN AEROSPACE BEARINGS.

Descriptive Note:

Rept. for 1 Feb 63-15 May 64,

Corporate Author:

SOUTHWEST RESEARCH INST SAN ANTONIO TEX

Personal Author(s):

• Staph ,H. E.
• Gunkel ,W. A.
• Munsch ,G. F.
• Ku ,P. M.
• Damewood,G.

Report Date:

1964-09-01

Pagination or Media Count:

80.0

Abstract:

The design and construction of a facility for testing aerospace bearings is described. This facility has a target capability of vacuums to 10 to the minus 9th power torr, bearing temperatures up to 1500 F, and speeds to 24,000 rpm. The instrumentation provides for the measurement of linner and outer race temperature, cage temperature, ball temperature, cage strain, and gross slip of the ball and cage unit. The bulk of the measurements are achieved through the use of a cage follower, a platform which rotates in synchronism with the cage, allowing cage mounted transducer leads to be brought out to signal commutating systems. The cage follower has been operated in the vacuum chamber with air environment satisfactorily. A study of aerospace bearing test failures indicates that the cage is the most critical part of the bearing and its fracture is quite often the reason for a test termination. Auhthor

Descriptors:

• *TEST FACILITIES
• BEARINGS
• AEROSPACE CRAFT
• TEST EQUIPMENT
• TEMPERATURE
• FRICTION
• WEAR RESISTANCE
• FAILURE(MECHANICS)
• FRACTURE(MECHANICS)
• VACUUM APPARATUS
• ENVIRONMENTAL TESTS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE