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Rolling bearing commodity inspection and acceptance

Parts of goods and rolling bearing test related to the quality of knowledge of the vast number of users, which must be attended to, for example, material supply and quality control departments are required to test the purchase of goods bearing the quality of eligibility, equipment maintenance department when the equipment bearing parts of a problem, Often through test bearings to identify problems because their bearings or bearing the improper application of technical departments often need to know all kinds of bearings and technical quality of the specific numerical targets.

By analyzing the calculation used to identify those bearing the host of a variety of technical specifications and quality indicators, or through the means of technology to improve these indicators, such as in determining the accuracy of Rotary host designed to reach specific targets, often known to be bearing rotary The specific numerical accuracy, and if the assembly technology, often need to know with the hole and the shaft bearing assembly on the surface of the axis error and the maximum value of the position, corresponding to the maximum to take home the anti-installed methods, in order to minimize error To offset each other, resulting in higher spindle rotation accuracy; Another example is the assembly plant to be often measured on the surface of the bearing assembly of specific size and host of journal and the actual size of the hole with adapter, so that the same group of host Bearing with a more homogeneous, not too loose or too tight, so as to avoid Raceway with the surface deformation or creep, and so on, will help ensure the accuracy of rotating spindle and work life.

In short, the user must have knowledge of the following:

(1) of goods bearing the test in accordance with which standard;

(2) of goods bearing the test of the items, why should the inspection of these projects;

(3) of goods bearing the quality of the course before the test, which needs to be done the preparatory work, why do these preparations;

(4) of goods bearing the various tests is under what conditions, how and what instruments to test, test the results of what must be qualified within the framework of tolerance;

(5), bearing a large volume of goods in some cases, can not be fully tested, then what should be a sample program, the amount collected for testing in order to more fully that there is sufficient reliability on behalf of all the goods bearing the quality and inspection The results of the criteria to be measured to determine these goods should be acceptable to qualified approved, rejected or failed to be approved.

Bearing the acceptance check can generally be classified into three categories, namely:

A routine check - when it arrived bearing a routine inspection of the general.

Checks - and bearing assembly about the size of accuracy and rotation accuracy, bearing clearance of residual magnetic bearings as well as the strength of the project to be checked.

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


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