- Oil seals play a vital role in the performance and longevity of motors. These mechanical components are designed to prevent oil leakage from the motor's internal parts, ensuring that the lubricant stays within the system where it is needed most. In this article, we will explore the importance of oil seals in motors and their impact on the overall efficiency and lifespan of these machines.
Figure 6: Oil seals for cars
NBR Viton®, a trademarked name of The Chemours Company, is a specific brand of synthetic rubber commonly used in o-rings, oil seals, gaskets, chemical resistant gloves, and other molded products.
Silicone rubber (VMQ)

An overview of the different standard types of oil seals and their main characteristics is shown below.
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Seals with an auxiliary, contacting lip can also be filled with grease between the sealing lip and auxiliary lip to reduce frictional moment. This does not apply to silicone rubber seals and seals with hydrodynamic features, other than WAVE lip designs. also recommends using a hydraulic press, with suitable tools, to install a seal in its housing bore. Pressure should be applied as close as possible to the outside diameter of the seal.” Oil seals are commonly used in a variety of industries. Below are 5 types of oil seals used in today’s manufacturing and machinery industry.
1) Oil seals for cars


Also known as a Rotary Shaft Seal, Shaft Seal, Lip Seal, Elastomeric Lip Seal or any variation of these. It is a simple device for excluding dust, dirt, water or any other contaminant whilst retaining lubricant in rotary shaft equipment. Generally, it has been developed as a means of protecting the bearings of rotating shafts.