Invention Grant
- Patent Title: Method and apparatus for the detection of defects in the raceways of bearing shells and in the rolling elements of ceramic hybrid bearings
- Patent Title (中): 用于检测轴承壳的滚道和陶瓷混合轴承的滚动元件中的缺陷的方法和装置
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Application No.: US13086463Application Date: 2011-04-14
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Publication No.: US08701499B2Publication Date: 2014-04-22
- Inventor: Rudolf Lueck , Anika Schoenicke
- Applicant: Rudolf Lueck , Anika Schoenicke
- Applicant Address: DE
- Assignee: Rolls-Royce Deutschland Ltd & Co KG
- Current Assignee: Rolls-Royce Deutschland Ltd & Co KG
- Current Assignee Address: DE
- Agency: Shuttleworth & Ingersoll, PLC
- Agent Timothy J. Klima
- Priority: DE102010018236 20100423
- Main IPC: G01B7/16
- IPC: G01B7/16
Abstract:
A method and an apparatus detects defects in raceways of bearing shells and rolling elements of ceramic hybrid bearings. To enable the detection of such defects without falsifying measuring values of the ceramic hybrid bearings installed, the outer or inner ferromagnetic bearing shell of the ceramic hybrid bearing is magnetically coded in at least a partial area and the magnetic coding of the bearing shell is used as generator for testing the raceways of the bearing shells and the ceramic rolling elements by inverse magnetostriction.
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