SEALING UNIT Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: source of a magnet field provided with tips having projections 5 is received in a case. One of the surfaces of the projections is inclined to a surface to be sealed which is enclosed by the projections. Sealing members 7, which are provided within working gaps, are made of flexible split ring member made of a magnet wire which is enclosed with antifriction non-magnet shell 8. The ring member is arranged from the side of the inclined surfaces of projection 5. Outer diameter of the member is grater than magnitude of the working gap. The member has a great number of turns. The working gaps are filled with high dispersed powder magneto-active lubricating composition 9. EFFECT: enhanced reliability. 3 cl, 5 dwg