Device and method to measure a bearing system

Details Device and method to measure a bearing system Device and method to measure a bearing system

2007-08-21

2007-08-21

Thompson, Jewel (Department: 2855)

Measuring and testing

Fluid pressure gauge

Reexamination Certificate

active

11117172

ABSTRACT:
A device to measure a fluid dynamic bearing system, particularly the inside diameter of the bearing bore of a bearing sleeve or the outside diameter of a shaft using a sensor element. A capacity acting sensor element is used to determine, for example, the inside diameter of the bearing bore, the sensor element being designed as part of the surface of a shaft prepared for measurement purposes. To determine the outside diameter of the shaft, the sensor element is correspondingly designed as part of the surface of the bearing bore of a bearing sleeve prepared for measurement purposes. Means of introducing a measuring fluid, preferably compressed air, into the bearing gap remaining between the bearing sleeve and the shaft are provided so that during the measurement process the shaft is automatically aligned and centered within the bearing bore.

REFERENCES:
patent: 4227420 (1980-10-01), Lamadrid
patent: 5032751 (1991-07-01), Morita
patent: 6463667 (2002-10-01), Ushio et al.
patent: 2002/0083779 (2002-07-01), Narita et al.
patent: 1 544 967 (1979-04-01), None
patent: 1 573 682 (1980-08-01), None
patent: 06137997 (1994-05-01), None

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