Hydrodynamic bearing with reduced temperature sensitivity

Details Hydrodynamic bearing with reduced temperature sensitivity Hydrodynamic bearing with reduced temperature sensitivity

1995-11-28

1997-12-16

Hannon, Thomas B.

Bearings

Rotary bearing

Fluid bearing

384120, F16L 3206

Patent

active

056977085

ABSTRACT:
A self-lubricating hydrodynamic spindle bearing comprising a stationary shaft including a conical, inwardly tapered surfaces extending axially form outer regions of the shaft toward a center connecting region of the shaft, a rotatably mounted sleeve surrounding the shaft and including surface regions flared axially inwardly toward a center region of the sleeve, the tapered surface regions and the flared surface regions defining a bearing gap for the hydrodynamic bearing, the sleeve defining a connection region adjacent the connecting region between the tapered surfaces of the shaft, the connection region including a tube collapsible in response to a change in internal pressure in the connection region to stabilize stiffness and power consumption in the bearing.

REFERENCES:
patent: 3391965 (1968-07-01), Lindeboom
patent: 4710034 (1987-12-01), Tittizer et al.
patent: 5246294 (1993-09-01), Pan
patent: 5524985 (1996-06-01), Dunfield

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