Bearing sleeves

Bearings – Rotary bearing – Water lubricated propellor shaft or well shaft

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Details

384107, 384275, 384291, 384368, F16C 300, F16C 1710, F16C 3310

Patent

active

048101052

ABSTRACT:
In order to support a mud-driven impeller of a down-hole turbogenerator in such a manner as to provide long bearing service life in the hostile conditions down-hole, a bearing sleeve is provided which comprises an outer shell of marine brass and an inner lining of nitrile rubber bonded to the inside surface of the shell. The lining extends axially beyond the end of the shell to form a portion positioned beyond the end of the shell and turned over the end of the shell. This portion comprises radical lands separated by radial grooves, and the radial lands define axial bearing surfaces for cooperating with an axial bearing surface of a bearing member which the bearing sleeve surrounds in use.

REFERENCES:
patent: 1020552 (1912-03-01), Henry, Jr.
patent: 2272128 (1942-02-01), Osbourne
patent: 2941850 (1960-06-01), Warner
patent: 3130991 (1964-04-01), Piragino
patent: 3298762 (1967-01-01), Peck et al.
patent: 3455613 (1969-07-01), McGrath
patent: 3499183 (1970-03-01), Parsons
patent: 3610713 (1971-10-01), Glenn et al.
patent: 3918773 (1975-11-01), Tuffias
patent: 3993371 (1976-11-01), Orndorff, Jr.
patent: 4380355 (1983-04-01), Beardmore

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