Dynamic pressure bearing having large load-carrying capacity and

Details Dynamic pressure bearing having large load-carrying capacity and Dynamic pressure bearing having large load-carrying capacity and

1996-01-16

1997-05-13

Footland, Lenard A.

Bearings

Rotary bearing

Fluid bearing

F16C 1704

Patent

active

056285680

ABSTRACT:
There is provided a dynamic pressure bearing which has a large load-carrying capacity and in which a ridge portion defined between adjacent grooves is prevented from damaging an opposite surface. The bearing includes an axial bearing surface having dynamic pressure generating grooves formed thereon by plastic working. The bearing has ridge portions defined between the adjacent dynamic pressure generating grooves. A top end of the ridge portion has rounded edge portions and a flat bearing surface defined between the edge portions. Since the edge portions of the top end are rounded, an opposite surface is prevented from being damaged. Further, the presence of the flat bearing surface defined between the edge portions results in increased load-carrying capacity.

REFERENCES:
patent: 4380355 (1983-04-01), Beardmore et al.
patent: 4514097 (1985-04-01), Daly
patent: 5188462 (1993-02-01), Hooper et al.

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