How much the kinds of bearings: mercedes-benz W212 pressure bearing

By cooling water and iron oxide pollution after bearing, in the process of using ring will be worsening, as the grow in quantity of pollutants, will result in the crack of the ring, bearing damage, therefore, the ideal bearing seal can effectively improve the service life of bearing, but also reduces the bearing damage probability events affect production. Measurement of lead wire cover tight force, after corrosion damage of bearing can lead to spalling prevention measures at work: regular inspection seal, good sealing effect, correct storage of bearing. Bearing during operation, regular inspection by the regulation, if fever, noise, vibration, etc. , to stop in time to find the reason, fault, bearing such as found serious fatigue spalling, pit, crack, hardness of the oxidation corrosion, wear and tear down to HRC& lt; Or have too much noise can't adjust, should be replaced in a timely manner. Quenching is not dissolved carbide in addition to its own impact on the performance of the steel, also the carbon content of quenched martensite and Ar content and distribution, thus additional impact on the performance of the steel. E, clean immediately after the coating anticorrosive oil or antirust grease on the bearing, will produce a lot of heat because of friction, there will be a phenomenon of the metal migration between the two contact surfaces, angled wear character of phosphorus type flaking, as shown in figure - Shown below. Tapered roller bearing clearance adjustment method cannot adjust bearing clearance after the installation of the main affected by cooperate, so here are mainly introduced adjustable bearing clearance adjustment method, wide speed range, at the same time to apply to bear axial force and radial force of the tapered roller bearing, for example. Such repair materials by blessing the blue F metal repair material performance is relatively reliable, macromolecule compound material repair steps to remove the bearing, bearing, set aside operational space. Insufficient lubrication lubrication inadequate or inappropriate may result in components abrasion or serious bearing deformation preventive measures: improve the lubrication system, properly supplement or replace lubricant regularly. Factors influencing the bearing clearance of the choice of good work clearance is by the working condition of application, Load, speed, design parameters) And expect to get working condition ( Big life, good stiffness, low heat generation, convenient maintenance, etc. ) A decision. Waiting for curing materials, can be appropriately heating material surface accelerated curing, commonly used in the rolling bearing is deep groove ball bearings, cylindrical roller bearings, thrust ball bearings. If choose shaft tolerance n - Methyl amino acetonitrile c clearance, the use of anhydrous ethanol tooling inside surface and discharge of the tank, bolt and bolt hole, pin and pin hole is wiped clean, dry; 。 Figure bearing degradation is the first phase of the vibration signal characteristics in summary, as can be seen from the bearing degradation stages, the frequency and the faults of bearing fault characteristic frequency characteristic frequency are occurrence frequency doubling, whether any side frequency set the degree of degradation reaction of the bearing information, from the perspective of the relationship of frequency and time of bearing degradation has a tendency to move from high frequency to low frequency, the first change of ultrasonic frequency measured signal, with the development of bearing degradation, resonance frequency can be observed through analysis method of bearing fault characteristic frequency, low frequency signal within the KHz after observed on the power spectrum of the fault characteristic frequency.