Hardened self-lubricating radial and thrust bearing

Claim 1

A SELF-LUBRICATING BEARING OF THE OSCILLATING TYPE COMPRISING A TUBE OF FIBROUS MATERIAL IMPREGNATED WITH A LUBRICANT AND HAVING INNER AND OUTER SURFACES ON OF WHICH IS SUBJECT TO BEARING MOTION, SAID TUBE BEING PRECOMPRESSED AXIALLY TO RETAIN ITS SIZE UNDER NO LOAD AT SAID ONE SURFACE, AN END THRUST BEARING COMPRISING A DISC OF FIBROUS MATERIAL IMPREGNATED WITH A LUBRICANT AND A RIGID ANNULAR RETAINER SURROUNDING THE EDGE OF THE DISC TO PREVENT FRAYING, SAID DISC BEING POSITIONED CO-AXIALLY WITH AND AT ONE END OF SAID TUBE WHEREBY SAID RETAINER BEARS AGAINST THE END OF THE TUBE, AND A SHELL RETAINER ENCLOSING SAID ANNULAR RETAINER, THE OUTSIDE OF SAID TUBE, AND A PORTION OF THE OTHER END OF SAID TUBE, TO RETAIN THE TUBE UNDER AXIAL COMPRESSION AGAINST SAID UNNULAR RETAINER.