- PTFE, or Polytetrafluoroethylene, is a highly versatile synthetic polymer renowned for its exceptional chemical resistance, low friction coefficient, and high-temperature stability. It finds extensive application in various industries, particularly in the manufacturing of oil seals. An oil seal, fundamentally, is a mechanical device designed to prevent the leakage of oil while allowing the rotation or linear movement of shafts and axles. The integration of PTFE into oil seals brings about a myriad of advantages.
- As oil is an essential component in many industries, the importance of oil seals cannot be overstated. Oil seals are used to prevent the leakage of oil from machinery and equipment, ensuring smooth operations and preventing damage caused by oil leaks.
Oil Seal Manufacturing: Processes and Considerations
BS
Air side face The oil seal surface vertical to the center line of the shaft on the side that does not come in contact with substances to be sealed is called the back face.
Oil seals applications
Seals are essential to protecting the bearings of any rotating shaft assembly -They prevent contaminants such as dirt, dust and water, while also preserving the system’s lubricant.


Nitrile Oil Seals - Nitrile oil seals, which is the commonly used term for acrylonitrile-butadiene rubber seals, is a very good general-purpose option due to the flexibility of use across a variety of components. The resistance is strong against fats, hot water, gasoline, mineral oils, grease and animal oils, making them the most often-used oil seals. They do not have a wide temperature range, making them a poor choice for machinery that can see extreme changes in temperature.


The basic principle of sealing is straightforward – the flexible lip is held against the rotating part (usually the shaft) whilst the casing (or O.D.) is pressed into the housing or bore and holds the seal in place. The sealing lip needs some form of lubrication to avoid overheating and is usually energized by means of a garter spring.


Choosing high-quality oil seals for your roller bearings, precision bearings, and more is an important decision, so at Emerson Bearing Company, we do more than manufacture oil seals. We draw from over 50 years of expertise in the area of bearings and bearing-related components so that our team can help you choose the right oil seals for your exact needs, regardless of the nature and complexity of your application. Should we not have a particular part in stock in our vast inventory, we also utilize a worldwide sourcing network to deliver on premium products. The Emerson team strives to provide a one-stop experience for our customers, from sourcing and budgeting to assistance in oil seal selection and timely delivery with same-day shipping options.