Bearings – Rotary bearing – Water lubricated propellor shaft or well shaft
Patent
1987-03-17
1989-03-07
Hannon, Thomas R.
Bearings
Rotary bearing
Water lubricated propellor shaft or well shaft
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.
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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
Arlott Colin
Kalsi Manmohan S.
Hannon Thomas R.
NL Sperry-Sun, Inc.
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