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dimanche 23 mars 2014

Factors To Consider When Choosing Shaft Seals

By Gwen Lowe


The decision to choose a shaft seal for specific application can be encircled by doubts and dissatisfaction. Considering that a person has to choose from the various shaft seals available that have different specifications, making an informed decision on which to choose can be a great challenge. However, there are various factors, which people should consider to make their selection simpler.

The temperature variance between the shafts and the potential seal should be equal or nearly the same. This is because if you use a seal in an environment where the operating temperature is higher, it would wear out. By choosing a seal whose temperature equals the one for your shafts, you would be sure of improving its lifespan.

Most seal types are not resilient to pressure impacts. This means if exposed to extreme pressures, their performance and lifespan can be reduced. However, some manufacturers can design customized sealing components that can resist the impacts of pressure. As a result, it is important to know whether the sealing you choose can resist pressure impacts.

One other vital factor to consider is the kind of finish. Normally, sealing poorly finished shafts creates room for wear and tear, which also can cause leaks. In addition, you should remember that sealing shafts whose finishing marks and fluid do not move at the same direction when the shaft is rotating can pose the system into various damages. Therefore, before sealing certain surfaces, you should ensure they are conditioned well.

You should also decide on which seal type to select. You need to make your choice between synthetic and leather sealing. Rubber sealing materials are known to have better resisting capabilities to finishes as compared to the synthetic materials. Since leather is absorbent, it also produces a self-lubricated seal, which means it can still work when in little lubrication or no lubrication.

In most cases, the materials used on the exterior surface of different coats depend on where such coats would be used. For instance, sealing made for use in corrosive environments can be furnished with non-corrosive plating or with a non-corrosive metal. In order to ensure you choose the appropriate sealing for your specific application, you should make sure you determine the potential application.

Shafts do not move at the same speed. This means the eccentricity, run-out and finish on different shafts would vary greatly. In addition, they would also use different types and amounts of lubricants. Before you choose a seal, you need to make sure it can work to meet the specification of such shafts depending on the speed, the type and the amount of lubricant it can consume.

People consider many things whenever choosing and shopping for certain products. These range from the quality, performance and the design of such products. These are also some of the main factors to put into consideration when choosing a seal for your shafts. You should make sure you know them before making your decision, as this would help you get the best products.




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