Thursday, March 20, 2014

Factors To Consider When Choosing Shaft Seals

By Gwen Lowe


Choosing the right shaft seal can be a daunting and tedious task. Given that people should decide on their preferred option from a wide range of options available, being in a position to decide on the best may not be one of the easiest things. If you want to get the best shaft seals, you should know various things before making your decision on which to pick.

One of the main factors to consider when choosing a seal is the variation in temperature between the shaft and the seal. Naturally, seals tend to wear out if exposed to applications where the operating temperature exceeds the temperature of the seal. Therefore, in order to improve the lifespan of your shafts, it is advisable to choose a seal, which has the same temperature range as your device.

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.

You also need to know the kind of finishing in the shafts. Mostly, if you seal badly polished shafts, they will tend to wear out quickly to cause leakages. The shafts would also develop some malfunctioning issues after a short time of operation, if the polish marks and the fluid do not move towards the same direction when the shafts are rotating. It is for this reason that people should make sure the surface of the shafts is maintained well.

People also need to choose a seal that matches their desires and specifications. A person is required to decide whether to go for leather or synthetic seals. Before you decide to choose any of these two, you need to remember that rubber can resist the impacts of shaft finishes better than synthetic. In addition, rubber generates a self-lubricated sealing with no or little lubrication.

Another vital factor to consider is where the potential seal would be used. Manufacturers use different materials when coating surfaces depending on where they want such coats to be used. The materials used to make the coatings that are used on acidic conditions would have better resistance to acidity than the ones used in corrosive environments. You should know the condition of the potential application before you decide to choose certain coatings.

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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