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NSK bearing inspection and inspection methods
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(1) Which specification is used for the inspection of NSK bearing products,
(2) What are the items for the inspection of NSK bearing products; in order to check these items,
(3) NSK bearing products before the quality inspection; what preparations need to be done; in order to do these preparations,
(4) The various inspection items of NSK bearing products are under the conditions of å•¥; using å•¥ method; using å•¥ instruments for inspection; the results of the inspection are necessary to be qualified within the scope of public service.
(5) NSK bearing products are sometimes in large quantities; it is impossible to conduct 100% inspection; then the sampling plan should be selected; the number of samples should be selected for inspection; the talents should be more fully and satisfactorily represent the quality of the overall commodity bearing; The results of the inspection are also measured in accordance with the å•¥ specification; to determine whether the goods are acceptable for the batch; or the unqualified batch that should be rejected.
Inspection inspection of NSK bearings can generally be divided into three categories; namely:
Routine view - a general view of routine NSK bearings when they arrive.
Customs view the NSK bearing installation related scale accuracy, rotation accuracy, bearing clearance and bearing residual magnetic strength and other items to view.
Special View - View the oscillation quality, noise quality and other special requirements for bearings of NSK bearings.
Following the advent of the tide of globalization, the domestic bearing code is gradually integrated with the imported bearing code; the latest national standard for publication; the domestic code is fundamentally common with the world ISO code.
F Deep groove ball bearings with flanged outer ring (for inner diameter <10mm); Example: F 605
HR high load tapered roller bearings; example: HR 30207 J
Deep groove ball bearings with flanged outer ring of MF specific dimensions (for inner diameter <10mm); example MF 52
MR specific dimensions deep groove ball bearings (for inner diameter <10mm); example MR 31
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