GB1084404A - Chambered self-lubricating bearing - Google Patents

Abstract

1,084,404. Brazing. FEDERAL MOGUL CORPORATION. March 18, 1966, No. 11973/66. Heading B3R. [Also in Division F2] A chambered self-lubricating bearing 12, Fig. 1, comprises metal components 16, 18, each of which has a bore 20 and an assembly face 28 which contains a recess 30 and a counter recess 32 so that, when the components 16, 18 are secured together a lubricant chamber 34 is formed. The chamber 34 is connected, by means of passages 38 containing a wick 40 to a part spherical bearing surface 22 which is engaged by a complementary bearing surface 24 of a mounting 14. The latter comprises components 42, 44 of metal, or of sintered powdered metal, which are retained by rings 56 and a housing 60, having inwardly-directed radial flanges 58. Seals 54 and an annular lubricant gap 62 are provided. In order to secure the components 16, 18 along their assembly faces 28, an intermediate member 64, Fig. 3, of brazing material is assembled into an annular-space 36 which is formed by the counter-recesses 32. The member 64 first acts as a pilot member to facilitate assembly and is then melted. The chamber 34 is filled with lubricant and wicks 40 are inserted. In another embodiment, a bearing 70, Fig. 5, comprises components 72, 74 which together form an annular chamber 88 and an annularspace 94. An intermediate member 96, which is made of powdered-metal impregnated with brazing-metal, is positioned in the annular space 94 and, on being heated, secures assemblyfaces 82 together by means of the brazing metal which flows from the member 96. A powdered metal residue remains in the chamber and serves as a wick, the latter and the chamber 88 being supplied with lubricant. In modifications, the powdered-metal wick is provided with radially inwardly-directed lugs, or with radially outwardly-directed lugs; and the intermediate member 168, Fig. 15, fills both an annular central portion 149 and annular spaces 136.