Hydrodynamic bearing, method of manufacturing the same,...

Details Hydrodynamic bearing, method of manufacturing the same,... Hydrodynamic bearing, method of manufacturing the same,...

2006-10-31

2006-10-31

Footland, Lenard A. (Department: 3682)

Bearings

Rotary bearing

Fluid bearing

Reexamination Certificate

active

07128468

ABSTRACT:
According to the invention, a shaft as a component of a shaft member of a hydrodynamic bearing and a disc member such as a thrust plate are joined to each other by welding by a simple method with high precision. A shaft having a cylindrical outer circumferential surface, in joint surfaces which are joined to each other of the shaft and a disc member having a flat surface facing an end surface of the shaft, a circumferential projection having a diameter smaller than the outside diameter of the shaft and projected in the axial direction and a recess at least of which outer periphery has a diameter smaller than the outside diameter of the shaft and larger than the diameter of the projection and has a circular shape are provided.

REFERENCES:
patent: 2003/0174916 (2003-09-01), Aiello
patent: A-2003-324753 (2000-11-01), None
patent: A-2002-168240 (2002-06-01), None
patent: A-2003-56567 (2003-02-01), None
patent: A-2003-97545 (2003-04-01), None

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