Invention Grant
- Patent Title: Method for testing a bearing component by means of ultrasound and optical inspection
- Patent Title (中): 通过超声波和光学检查测试轴承部件的方法
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Application No.: US12441498Application Date: 2007-09-12
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Publication No.: US08051716B2Publication Date: 2011-11-08
- Inventor: Oskar Beer , Edgar Streit
- Applicant: Oskar Beer , Edgar Streit
- Applicant Address: DE Herzogenaurach
- Assignee: Schaeffler KG
- Current Assignee: Schaeffler KG
- Current Assignee Address: DE Herzogenaurach
- Agency: Lucas & Mercanti, LLP
- Priority: DE102006043570 20060916
- International Application: PCT/DE2007/001641 WO 20070912
- International Announcement: WO2008/031423 WO 20080320
- Main IPC: G01M13/02
- IPC: G01M13/02 ; G01B11/24

Abstract:
A method for testing a bearing component in order to ensure that the bearing surface and a load-bearing region located underneath the bearing surface are in a perfect condition. A material testing depth containing the point of maximum mechanical load during operation is determined. In a first partial testing step, the bearing component is subjected to an ultrasound test by which the material region underneath the bearing surface is tested for defects by ultrasound, at least up to the material testing depth. In a second partial testing step, a full optical test of the bearing surface is carried out During the second partial testing step, the actual surface state of the bearing surface is compared with a nominal surface state. The bearing component is then only classified as faultless if the results of the two partial testing steps do not reveal any defects.
Public/Granted literature
- US20090308162A1 METHOD FOR TESTING A BEARING COMPONENT BY MEANS OF ULTRASOUND AND OPTICAL INSPECTION Public/Granted day:2009-12-17
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