HIGH-SPEED JEWEL PLAIN BEARING OF CLOSED TYPE FOR AXLES OF INSTRUMENTS Russian patent published in 1998 - IPC

FIELD: precision instrumentation engineering, radial thrust bearings of closed type with liquid lubrication. SUBSTANCE: invention is related to radial thrust bearings of closed type with liquid lubrication rotating with angular speed up to 100000 rpm and higher. Proposed high-speed jewel plain bearing of closed type has through stone and applied element with spherical recess pressed into mount, cylindrical journal with spherical pivot passing through hole of through stone and capillary clearance filled with lubricating oil formed between surface of cylindrical journal and corresponding surfaces of stone and applied element. Bearing is fitted with element embracing journal mounted uniaxially with through stone. Cylindrical journal passes uniaxially through hole in element embracing journal. Diameter and length of this hole are bigger than those of through stone. EFFECT: enhanced radial stability of instrument mobile unit and prolonged service life of instrument. 2 cl, 6 dwg