- Fiberglass Used in certain applications, fiberglass casing is lightweight and resistant to corrosion, making it suitable for certain environments.
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. The maximum allowable shaft speed is a function of the shaft finish, runout, housing bore and shaft concentricity, type of fluid being sealed and the type of oil seal material.
ERIKS type M (type B according to the DIN standard) has a single metal casing and rubber sealing lip. Since the casing is made of metal, it must be fitted in a well-finished, undamaged groove. Large volumes of oil seals with metal casings are often cheaper, which is why they are often used as original equipment in machines. However, if an oil seal has to be replaced, types with a rubber exterior (type R or RST) are easier to fit. Type MST is similar to M and commonly used. The difference is the dust lip in the MST oil seal that prevents dust and dirt reaching the sealing lip, and extends its service life in dusty environments.
Renault/BPW


Oil seal: get to know all the details about this timing chain kit component
When the bore and shaft centers are misaligned, seal life will be shortened because the wear will be concentrated on one side of the sealing lip.
Figure 7: Recommended housing shoulder diameters




In conclusion, oil seals are critical components in ensuring the proper functioning of machinery and equipment. By selecting the right seal based on material, design, size, and operating conditions, users can prevent oil leaks, reduce maintenance costs, and prolong the life of their equipment. With a wide range of options available, it is essential to choose a high-quality seal that meets the specific requirements of the application.
2. Metal Case
Here are some additional tips that will help you have a successful O-ring installation.


Prepare the shaft and prevent damage