![]() ![]() Three values of cleanliness are obtained after contamination class assessment for example for oil lubricants it would be −/15/12 or 22/18/13.įilter rating value βx is a measure that defines filter efficiency – it is the filter capability to stop contaminants of x size. The second method utilizes automatic particles count and present results for three sizes of particles: ≥ 4 μm, ≥ 6 μm and ≥ 14 μm. Two values of cleanliness level which corresponds to particles of sizes ≥ 5 μm and ≥ 15 μm are determined. One of the method of oil cleanliness assessment base on counting the amount of particles under the microscope. It allows to assess the oil cleanliness class basing on particles count in taken sample. Standardized method of contamination level classification of lubricant by solid particles has been described in ISO 4406 international standard. In bearing technology both static and dyna- mic load conditions has to be independently checked ( n 0, bearing failure may occur due to abrasive wear and operational bearing life might be lower than calculated modified life. ![]() In bearing technology both static and dynamic load conditions has to be independently checked. Nominal rating values of basic static load C 0 and basic dynamic load C has been provided in the charts. Size of the bearing that will be used in a particular solution is at first selected basing on: bearing’s load rating in relation to loads that are occurring, requirements on service life and reliability. ![]()
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