Thrust bearing device

Details Thrust bearing device Thrust bearing device

2007-08-09

2010-11-16

Hannon, Thomas R (Department: 3656)

Bearings

Rotary bearing

Fluid bearing

C384S368000

Reexamination Certificate

active

07832934

ABSTRACT:
A thrust bearing device comprising a runner portion attached to a rotational axis and having a plane perpendicular to the axial direction of the rotational axis, and a fixed portion having a sliding surface facing the plane of the runner portion, wherein the fixed portion has a plurality of oil grooves extending in radial directions formed on the sliding surface, a plurality of tapered lands formed among some of the plurality of oil grooves on the sliding surface and having a tapered plane and a plane, a plurality of flat parts formed among the remainder of the plurality of oil grooves on the sliding surface and having only a plane, and a plurality of oil supply openings formed in each of the plurality flat parts and pressurized oil is externally supplied.

REFERENCES:
patent: 4383771 (1983-05-01), Freytag et al.
patent: 4863291 (1989-09-01), Heshmat et al.
patent: 6481895 (2002-11-01), Yang et al.
patent: 6913268 (2005-07-01), Bohler
patent: 7470064 (2008-12-01), Link et al.
patent: 09-048324 (1997-02-01), None
patent: 2006-274244 (1997-02-01), None
Japanese Society of Tribologists, Toraiboroji hando bukku (tribology handbook), Yokendo, 2001, p. 58.

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