Accession Number : AD0630853

Title :   EXPERIMENTAL STUDY OF THE EFFECT ON VIBRATIONS ON FRICTION IN THE CYLINDRICAL GUIDE-BEARINGS FOR A BALANCE-WHEEL SPINDLE,

Corporate Author : ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER WASHINGTON D C

Personal Author(s) : Isaev,A. P.

Report Date : MAR 1966

Pagination or Media Count : 16

Abstract : The article presents the results of an experimental study pertaining to the effect of vibration on the friction torque in balance-wheel spindles and bearings of chronometers in general but 'Pobeda' and aviation instruments in particular. The effect of rotational speed and radial clearance between spindle journal and bearing bore, also the effect of themagnitude of a vibrational overload were tested. The significance of the position of the spindle relative to the earth's gravitational field is discussed. It is shown that the frictional torque can be made constant regardless of the angle of inclination of the spindle. The mutual relation between frictional torque and impact torque due to vibration is analyzed, and it is explained why, at vibrational overloads larger than 1 g, the impace torque becomes equal to zero. The impact torque refers to the spindle journal striking the inner bearing surface, while between strikes the spindle is in a suspended position. (Author)

Descriptors :   (*CHRONOMETERS, INSTRUMENTATION), USSR, BEARINGS, ANTIFRICTION BEARINGS, FRICTION, TORQUE, VIBRATION, CYLINDRICAL BODIES

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE