The user must have the following knowledge:

(1) import bearing inspection of commodity according to which a standard;

(2) NSK bearing inspection of commodity what project, why want to test these projects;

(3) NTN bearing goods in the quality inspection before, need to do what preparation work, why do these ready to work;

(4) IKO bearing of goods each inspection items is under what conditions, with what method, with what the instrument to the inspection, the inspection results must be in what qualifies as tolerance range;

(5) KOYO bearing commodities sometimes batch is very big, cannot be one hundred percent for inspection, it should adopt what kind of sampling plan, how many quantity from inspection, ability more comprehensive, has reliable enough to represent all the goods bearing the degree of quality, and the test results and according to what standard to measure to determine this batch of goods shall be acceptable qualified group is, or should be the return of the unqualified batch.

Bearing the acceptance inspection is usually divided into three kinds, namely:

Routine check-bearing the routine check when general.

Conventional check of the bearing and assembly-about the size accuracy, the rotation accuracy and bearing clearance and the residual strength of magnetic bearing project for inspection.

 
Special inspection of bearing vibration-quality, the quality of the bearing and the noise other special requirements for inspection.



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