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Real-time vibration diagnostics
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Home Publications Articles Benchtop system for rolling bearings acceptance vibration analysis

Benchtop system for rolling bearings acceptance vibration analysis

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Design life of rolling bearings is determined by bearing capacity rating, equivalent load and bearing type (ball or roller). The equivalent load is determined by two factors: static and dynamic.

If the static load is determined by the machine operation mode and can vary within wide limits, the dynamic load is determined by the bearing state - all the roughness and defects in rolling elements and surfaces lead to an increase in dynamic forces affecting the bearing, and as a result, reduce its life. Besides, this decrease in life can be rather significant. Thus, for bearings with spoilage in production, when static and dynamic forces are comparable, the design life drops to 8 times for ball bearings and 10 times for roller ones. This explains the necessity for carrying out rolling bearings input vibration analysis before they are installed on the repaired or re-manufactured machines.

The article shows a dependence diagram of the bearing velocity overall level from the magnitude of the applied radial static load. It has been concluded that when measuring the bearing vibration parameters, we can judge about the magnitude of dynamic forces affecting the bearing, and thus we can more accurately evaluate its potential life.

Solution to the problem of purchased bearings 100% acceptance testing is the application of vibration analysis methods, where through the analysis of vibration signal one can quickly give an opinion on the bearing state without disassembling and micromeasuring. To solve this problem the benchtop system COMPACS®-RPP has been developed.

 

Kostyukov V.N., Boychenko S.N., Kostyukov A.V., Molteninov A.V., Buluchevsky Yu.V., Karpov S.Yu.,Dvukhzhilov D.V. , Shchelkanov A.V. Benchtop system for rolling bearings acceptance vibration analysis // Assembling in mechanical engineering, instrument making. - 2009. - № 4. - pp. 38-42

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You can order the translation by e-mail: a@dynamics.ru


Tags: vibration analysis vibration parameter rolling bearings COMPACS-RPP Date: 24.08.2012
Views: 1201
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