- One of the primary functions of high pressure oil seals is to separate oil from other components within a mechanical system. They create a barrier that keeps oil contained within the designated chamber, preventing it from seeping into areas where it could cause damage or compromise performance. This is particularly important in applications like pumps, motors, and cylinders, where maintaining a clean and lubricated environment is vital for smooth operation.
TYPE The other way oil seals work is by stopping outboard materials that can damage the machine or contaminate its lubricant. The outboard materials that the oil seal will need to stop depend on the application. However, the most common kinds are dirt, moisture, and the particles produced during manufacturing.
MH: O.D. wall is a rubber material
HM: O.D. wall is a metal case
MH(S)H: O.D. wall is metal with a reinforced inner metal case

These seals are more commonly used in pumps, motors both electric & hydraulic, gearboxes & occasionally dirt wipers in hydraulic cylinders. They help protect shafts and bearings from dirt and harmful contaminants entering the internals of the application that they are fitted to, as well as prevent any leaks of lubricant.


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③ Lip type code
THE 6 GUIDELINES ARE:
There are several key factors to consider when you are selecting the oil seals for your next project to ensure that you protect your machinery from immediate and long-term damage.
Here are some additional tips that will help you have a successful O-ring installation.