- The main bearing oil seal is a crucial component in the engine's lubrication system. It plays a vital role in preventing oil leakage from the engine's main bearings while allowing the rotation of the crankshaft. This dual functionality ensures the smooth operation of the engine and extends its service life.
Properly installed, an oil seal will help keep machinery in perfect working order. Its primary functions include retaining or separating fluids, maintaining a bearing’s lubricity, preventing seal leakage, and preventing the entry of foreign contaminants. Other benefits of Emerson Bearing’s oil seals include:
② - The Versatile World of Silicone Gasket Sheets
- Furthermore, silicone gasket sheets are easy to install and maintain. They can be bonded to various substrates using a variety of methods, including pressure sensitive adhesives, thermal bonding, and solvent bonding. Once installed, they require minimal maintenance and can last for years without degradation.
- Undersized Installation Tool: If the installation tool’s driving diameter is too small, it can deform the seal during installation. Choose a tool with an appropriate driving diameter to avoid this problem.
Polyacrylate (ACM) Oil Seals
The sealing process involves the interaction between the rotating shaft and the elastomeric material, resulting in a dynamic barrier that prevents fluid leakage and maintains system integrity.
Choosing the Right Oil Seals:
Advantages:
– Good static sealing
– Compensation of different thermal expansion
– Reduced risk of fretting corrosion
– Effective protection against air side contaminants
– Higher bore surface roughness is allowed
– Installation in split-housings
– Modern lip design provides low radial forces
The design of high-pressure oil seals is also critical to their performance. The seals must be able to maintain a tight fit between the moving parts, while also allowing for some flexibility to accommodate minor variations in the shaft or housing. This balance between rigidity and flexibility is essential for ensuring a reliable seal under high pressure conditions.
oil seal high pressure

Choosing the right oil seal
Oil seals work by squeezing and retaining lubricant in a thin layer between the lip and the shaft. Perfect sealing is ensured by the hydrodynamic action of the rotating shaft, which in turn produces a slight pump action.

rotary shaft oil seal. It is important to choose a high-quality seal that is compatible with the requirements of the system to ensure optimal performance and longevity.