DEVELOPMENT OF A ROTOR-WHEEL CONFIGURATION ORIENTED-WEDGE AIR LUBRICATED BEARING
Abstract
Design details and experimental and performance data are presented for 3 prototype orientedwedge, hydrodynamic, air-lubricated bearings with potential application to the spin axis of a gyroscope. The 3-wedge double-phase bearing performed satisfactorily under a 10-g radial load at 11,500 rpm, and a 4.8-g thrust load at 18,000 rpm for a 2-lb rotor. It had better stability characteristics under both load and no-load conditions than the 2-wedge bearing. T HE <-WEDGE, DOUBLE-PHASE >)-DEGREE TAPERED-END BEARING PERFORMED SATISFACTORILY UNDER A !)-G RADIAL LOAD AT !!,))) RPM, BUT THRUST LOAD COULD NOT BE SUPPORTED BECAUSE OF MISALIGNMENT CONDITIONS OF THE TAPERED END COVERS; FLAT THRUST ENDS APPEAR TO BE MORE PRACTICAL. The 2-wedge, inverted 60-degree bearing supported an 8-g thrust load at 18,000 rpm for a 2-lb rotor; radial loading could not be accomplished because of radial instability. Bearings with rotor l/d ratios of 1.0 or greater exhibit better radial operating performance than with small l/d ratios. The internal temperature rise of both 2- and 3-wedge double-phase bearings was about 15 F at 20,000 rpm.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1961
- Accession Number
- AD0260521
Entities
People
- R.r. Gedeon
Organizations
- Stellantis North America (formerly Chrysler)