NASA Spinoff Database: Bearing Failure Detection

NASA Center: Marshall Space Flight Center
Public Release Year: 1976
Reference Number: MSFC-SO-40
Category: Transportation
Origin: Skylab Program

Shaker Research Corporation, under a contract with NASA, produced a test vehicle that measures resonant frequency of railroad roller bearings to identify source of bearings defects. Marshall scientists have developed a detection concept based on fact that bearing defects themselves excite resonant frequency of rolling elements of bearing as they impact the defect. By detecting resonant frequency and subsequently analyzing character of the signal, bearing defects may be detected and identified as to source. The bearing fault detector will help eliminate this cause of derailments.

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Page Number in Published book: 73

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