Radial and thrust-type hydrodynamic bearing capable of accommoda

Details Radial and thrust-type hydrodynamic bearing capable of accommoda Radial and thrust-type hydrodynamic bearing capable of accommoda

1979-07-30

1981-05-19

Frankfort, Charles E.

Cutlery

308 26, 308 72, 308 73, 308160, F16C 704, F16C 1703, F16C 1706, F16C 2706

Patent

active

042680948

ABSTRACT:
A hydrodynamic bearing capable of transmitting thrust and radial loads and able to accommodate angular misalignment between an inner load applying or supporting member rotatably connected to the bearing utilizes an outer cylindrical array of bearing pads disposed about a longitudinal axis, the pads having movable face portions with spherically curved bearing surfaces having a common center of curvature located on the longitudinal axis, the curved surfaces mating with a spherically curved periphery on the load supporting member. The face portions of the bearing pads are supported by curved laminated elastomer-inelastic material so that they are restricted to swinging motion about "swing points" located between the axis of rotation of the bearing and the face portions thereof under the combined influences of friction and load forces exerted thereagainst by the load applying or supporting member, so that wedge-shaped hydrodynamic gaps are created between the relatively moving bearing surfaces that are filled by the lubricant to maintain the surfaces apart while the motion is occurring through hydrodynamic action. Radial and thrust loads, as well as angular misalignment between the load supporting member and the bearing pads, are all accommodated by reason of the particular ball and socket relationship between the bearing members, without adversely affecting the hydrodynamic action of the bearing.

REFERENCES:
patent: 1882102 (1932-10-01), Wallgren
patent: 2137487 (1938-11-01), Hall
patent: 2250546 (1941-07-01), Michell et al.
patent: 2498011 (1950-02-01), Sherbondy
patent: 3131004 (1964-04-01), Sternlicht
patent: 3679197 (1972-07-01), Schmidt
patent: 3930691 (1976-01-01), Greene

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