AN INVESTIGATION OF SPIN AXIS INSTRUMENT BEARINGS.
Progress rept. no. 9, 1 Nov 58-31 Jan 59,
ALLOYD RESEARCH CORP WATERTOWN MASS
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The work is concerned with problems encountered in the performance of spin axis instrument bearings used in high angular momentum gyroscopes. These bearings fail through an increase in running friction of sufficient magnitude so that the gyroscope drive cannot maintain the rotor at synchronous speed. The main areas of activity are 1 Careful examination of bearings which have failed in service to determine the causes of failure. 2 A determination of the pertinent physical properties of new bearing materials as functions of their metallurgical variables. 3 The testing of balls of these materials under rolling and spinning loads to study their bearing properties. 4 Running completed bearings in a torque tester to obtain friction data and to monitor friction changes occurring under operation closely simulating that found in an assembled gyroscope.