TECHNIQUES FOR INVESTIGATION OF FRICTION AND EAR IN AEROSPACE BEARINGS,
Abstract
Instrumentation techniques were developed which may be applied toward the study of several param eters believed to contribute to friction and wear in rolling-element bearings. Measurements are made on the bearings during operations. Ultimate goal for instrumentation applicability is -65 F to 1500 F bearing temperature, 10 to the -9th power torr vacuum, and 24,000 rpm speed. The principal instrument for performing the meas urements is a platform called a cage follower, which rotates in a plane alongside of and parallel to that of the bearing and in synchjo nism with the cage. Cage-mounted transducers for temperature and strain may be connected to the cage follower by fine wires. Transducer signals, A.C. or D.C., may be telemetered from the moving shaft through coupling transformers. The use of the cage follower to measure ball spin is described. Ball and cage temperature measure ment by infrared techniques was studied and shows feasibility. Material transfer occurring during bearing operation is measured on the doubly curved bearing surfaces by preformed autoradio graphs and scintillation counting. A section summarizes the lierature on the effects of the presence of electric and magnetic fields on wear in rolling element bearings. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1963
- Accession Number
- AD0413830
Entities
People
- G.f. Munsch
- H.e. Staph
- J.c. Harless
- R.r. Nydegger
- W.a. Gunkel
Organizations
- Southwest Research Institute