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FAG spherical roller bearing fault handling effectively increase the service life

by:Waxing     2020-10-31
FAG spherical roller bearing is an important part of a major industrial equipment. Bearing problems may lead to costly downtime, equipment damage and failure. In addition, a large industrial bearing on behalf of a large amount of capital investment. In order to achieve high equipment performance and the lowest maintenance cost, reliable running, must follow the correct processing method. This includes bearing storage, removal, cleaning, testing and installation. The service life of any FAG spherical roller bearing depends largely on the preventive maintenance and received it. This especially in industrial applications, often working conditions, heavy load, dust and pollution is a common size. Apply to all anti friction bearing design. FAG spherical roller bearings for bearings with special anticorrosive coatings to choose from, but most of the bearing is not corrosion resistant materials. In handling and storage of bearings, must be careful, to ensure that they will not rust or corrosion. Even if it is wet or unprotected left hand or a small amount of chemical gloves can lead to etch in a small area, it could cause bearing fatigue. New and restructuring FAG spherical roller bearings have a protective coating to deliver goods, usually in a protective cover paper or other packaging, and in a carton or wooden cases. When receiving a new bearing or restructuring, not from the packaging, until ready to install in the application. Do not stored directly on the concrete, here you can condensate collection and bearing. Store shelves tray or bearing, bearing there won't be high humidity or a sudden and severe temperature changes, may cause condensation formation of the area. Each type of FAG spherical roller bearing design has a unique removal process. Regardless of the bearing type, bearing must be particularly careful to be deleted. If the improper operation, it might damage the FAG spherical roller bearing, shaft or shell, require expensive maintenance. For smaller bearing, a driver can help bearing removal, etc. To work closely with, or press, or have been locked in a shaft of place, can't use mechanical dismantling bearing drawing machine, bearing inner ring can be heated, to alleviate the relocation. Heat lamp or other heating equipment can be used. If a torch, it can change the performance of the bearing steel and bearing must be discarded. To sum up, GCrl5 steel after quenching not dissolve carbide at about 7%, the residual austenite is around 9%, Cryptocrystalline martensite average carbon content in 0. About 55%) As the best organizations. And, when the original organization of carbide small, uniform distribution, the reliable control of the above levels of the microstructure, to obtain high comprehensive mechanical properties, which has high service life. It should be pointed out, has the fine carbide dispersion distribution of the original tissue, quenching heat insulation, not dissolve tiny carbides would gather to grow up, make its coarsening. Therefore, for with the original organization bearing parts quenching heating time shoulds not be too long, the rapid heating austenitizing quenching process, will can obtain higher comprehensive mechanical properties. In order to make the FAG spherical roller bearing parts quenching tempering after large surface residual compressive stress, could pass infiltration during quenching heating carbon or nitriding atmosphere, make the surface carburizing or nitriding for a short period of time. Because the steel quenching when heated austenitic actual carbon content is not high, far lower than on the phase diagram shows the equilibrium concentration, so it can absorb carbon ( Or nitrogen) 。 When austenite contains higher carbon or nitrogen, the Ms is reduced, quenching surface when the martensitic transformation in the aftermath of the inner layer and center, produce the large residual compression stress. GCrl5 steel by carburizing atmosphere and the atmosphere carburizing quenching ( Both low temperature tempering) After processing by the contact fatigue test as you can see, the surface carburizing of life than carburized increased 1. 5 times. The reason for carburizing of the surface of the parts has a larger residual compressive stress.
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