Introduction to Oil Seals

Grease oil seals, dirt seals, oil seals and fluid seals may be called by different names, but they are designed to deliver the same task. Perhaps their most important job is to close the spaces between moving and stationary parts in every kind of mechanical equipment. Grease and oil seals are essential to modern-day living in order to achieve a high level of efficiency and performance in different industries, such as automotive, agricultural, industrial and manufacturing equipment, to provide the products, vehicles and services we all benefit from.

Each kind of bearing is made of very important components and oil seals protect all of them to let them always be reliable and maintain the safety of precisely constructed assemblies, even during the harshest applications.

Aside from closing the gaps or spaces in a variety of machines, vehicles and tools, grease seals protect them from harmful contamination. Oil seals are helpful to machines since they maintain important parameters, like lubrication. At the same time, they keep away harmful things from their delicate and reliable components and parts, such as contaminants, debris and dirt.

Oil seals do not only prevent abrasives, contaminants and moisture from gaining access into the machine tools and components, but they also make sure that different liquids do not mix with each other. For example water and lubricants that are oil-based.

There are various oil seal designs available, which are created to address the needs of different industries. Though it may seem that they are all alike, the real design, configuration and materials that are utilized can make a considerable difference in some applications. There are types of items that are designed to get rid of friction and torque, allowing the seal to be in motion together with the bearings, together with the other components of the machine as well as to provide protection against any contamination. Other varieties are made to provide greater efficiency. Whatever they require, the industries have produced designs and concepts in order to give the performance that each and every application needs. Some of these types of seals are as follows: mechanical seal factory


  • O-ring
  • Multiple lip
  • Labyrinth
  • V-seals Light duty
  • Light duty
  • Heavy duty
  • Oil ring s
  • And others…


With regards to regular applications, a dirt seal is typically installed next to the bearing. This should either be sealed in or out, according to the requirements of the machinery and depending on the range of solids, liquids or gases that stumble upon a particular mechanism. Therefore, it extremely important to know in what kind of environment an oil seal will operate before choosing the sealing element or lip material.

In doing so, the appropriate type of seal can surely be obtained for a particular mechanism or function. Fluid seals can be made from a wide range of materials and compounds. Industrial seal types also come in a variety of sizes. Metric and high temperature grease seal varieties are also available. In this regard, it is crucial to have an accurate sealing design that matches the original equipment in order to get a consistent, precise and reliable operation.



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