Oil seals can show good sealing performance in combination with properly designed shafts and housings.
Oil seals close off the space between stationary and moving components in the mechanical equipment. It saves the lubricant from escaping through the equipment and ensures smooth operation of the machine.
The sealing element makes up the interior of the oil seal, and the materials commonly used are:
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spark plug gasket.
As earlier said, oil seals perform some functions that ensure the functionality of mechanical equipment and extend their lifespan. And how they do this is by retaining lubricants at all cost and not making them escape no matter how high the pressure of the machine is.
A shaft oil seal, also known as a lip seal, is typically made of rubber or other flexible materials, with a lip that seals against the rotating shaft. It is designed to effectively seal the interface between the shaft and the housing, preventing the entry of dirt, dust, water, and other contaminants that could potentially damage the machinery.
A) Shaft runout
As shown in Figure 8, shaft runout is defined as being twice the eccentricity between the shaft center and center of shaft-center rotation trajectory.
Usually, these oil seals are used to seal lubricating oil or grease and contain it within the application, so that moving parts such as bearings are continually supplied with enough lubrication. However, such seals are also used for sealing other liquids, gases, and solids, such as powders or granules.