5 Types of Oil Seals
Double metal cased

The simplest way is to know either the preferred manufacturers part number, the overall sizes of shaft diameter, housing diameter and bore depth, or use our brochure to establish the M Barnwell Services ordering reference. Many of the old traditional names of seal manufacturers have either changed or disappeared in this age of “acquisitions”. If no longer available, we will advise you and offer a suitable alternative seal, from stock whenever possible. If your concern is getting the right seals for the job, you will need to know something about the application as well as the overall sizes. If you have any doubts – contact us, we will help in your seal selection.
Cassette Seals
Wheel hub oil seals are essential components in automotive systems, serving to maintain the integrity of the wheel hub assembly. These seals are designed to prevent the leakage of lubricating oil and the entry of contaminants, safeguarding the wheel bearings and other internal components. By creating a barrier against moisture, dirt, and debris, wheel hub oil seals contribute to the smooth operation and longevity of the wheel assembly, ensuring optimal performance and safety on the road.
Oil seals close spaces between fixed and moving parts and protect all kinds of ball and roller bearings. They keep rotating shafts and bearings from pollution and corrosive materials, and also prevent lubricants, oils, and liquids from leakage. An oil seal can have a single lip, double lip and even triple lip, so single lip seal is one lip to seal around the shaft, double lip seal is two lips sealing around this, and triple lip seals have three lips to seal.
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3) Seal numbering system



Oil seals are used in a great many devices for steel production equipment.
Figure 7 shows the places where each seal type is used in a rolling mill.