Radioactive tracer method for rolling bearings

Source: Bearing network time: 2017-10-31

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Online monitoring skills of rolling bearings - Radioactive tracer method This method is applicable to bearings or high-speed important bearings operating in high-precision machine tools; its life is determined by the degree of wear. It can be measured about the wear amount of 10-5~10-6; Can also measure the wear of a bearing part.
The bearing parts are placed in a uranium reactor with a neutron flux of about 3.5X1011 neutrons/(cm2/s) for one month; after another ten days of storage; thoroughly cleaned; and then installed with other non-radioactive bearing parts; Loaded into the host; and the Geiger counter is connected to the bearing return passage to measure or record the radioactive strength of the wear particles; then the wear level of the monitored bearing is measured.
In fact; this method is commonly used to determine the wear curve of the monitored bearing; the curve follows the rule of the exponential function; ie W=atb; where W is the amount of wear; t is the working moment; a and b are constants; The trace method determines the constants a and b; then the amount of wear is related to the corresponding number of working moments.
This method is extremely accurate; the reproducibility is excellent.

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