Wednesday, March 19, 2014

Some Important Things To Know Before Picking 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.

Among the primary things to know is whether the shaft and the seal has the same temperature range. It is advisable you choose a seal whose temperature does not vary greatly with the operating temperature of the shafts. This is to avoid cases in which the seal would wear out after a short time due to being exposed to more temperatures than it can withstand.

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.

People should also decide on which seal to choose. Normally, coats can be obtained from either leather or synthetic materials. The rubber-made coats usually have better resistance to corrosive conditions as compared to the ones made of synthetic materials. Additionally, rubber-made coats usually generate a self-lubricated coat whether lubricated or not.

In order to select the most appropriate coat for your special application, it is also important to know whether it can meet the operating specifications of such shafts. In most cases, designers create certain coats depending on the conditions of the environments on which they would be used. It is important to know whether the potential application is corrosive or not as the coats made for use in corrosive conditions would have better resistance than the ones that are not.

The speeds at which certain shafts move vary greatly. The best seal to suit for specific applications depend on the finish, run-out and the eccentricity of the shafts. The quantity and the type of lubrication can affect the type of seal to be used. As such, you need to consider these factors before you decide to choose certain sealant.

When shopping for any type of product, you should know various things. Some of these are the performance, the quality and design of such products. As you choose a seal for your shafts, you should also consider these factors before making your decision on which to choose. This is because not all shafts or coats are the same.




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