(4) The degree of eccentricity on the installation If the eccentricity of the oil seal and the shaft is too large, the sealing performance will be deteriorated, especially when the shaft speed is high. If the eccentricity is too large, a W-shaped oil seal can be used.
- The term shorty refers to the shorter than standard length of these plugs. This compact size is not just an arbitrary design choice; it is a response to the ever-evolving needs of modern engine bays, which are becoming increasingly cramped as vehicles integrate more technology in less space. By reducing the length of the spark plug, manufacturers can free up precious millimeters, allowing for better access, easier maintenance, and, importantly, the accommodation of other essential components.
- WG1223546
Update: Leakage-free
Passenger cars- Replacing a damaged thermostat gasket is a relatively straightforward process, usually requiring basic tools and some mechanical know-how. However, for those less mechanically inclined, it's always advisable to seek professional assistance to avoid further complications.
- Wheel and Oil Seal A Match Made in Automotive Heaven
ERIKS
1. What are oil seals?
- Stainless Steel: Ideal for water, chemicals, or corrosion resistance applications. Stainless steel cases are also suitable for many FDA applications.
- One of the key benefits of PTFE oil seals is their temperature resilience. They can operate effectively in temperatures ranging from -250°C to 260°C, making them suitable for applications in extreme environments. Additionally, PTFE's inherent flexibility enables it to adapt to slight misalignments or shaft movements, reducing the risk of seal failure Additionally, PTFE's inherent flexibility enables it to adapt to slight misalignments or shaft movements, reducing the risk of seal failure
Additionally, PTFE's inherent flexibility enables it to adapt to slight misalignments or shaft movements, reducing the risk of seal failure Additionally, PTFE's inherent flexibility enables it to adapt to slight misalignments or shaft movements, reducing the risk of seal failure
ptfe oil seal.
Other important factors are ensuring the hardness and roughness of the shaft are correct. A shaft hardness of HRC 45 is recommended for a rubber sealing lip, with a roughness of Ra 0.4-0.8. A higher shaft hardness of HRC 60 and shaft roughness of Ra 0.1-0.4 is recommended for a PTFE lip.
All are fitted with a spring to preload the sealing lip. All these types are for non-pressurised or low-pressure applications up to 0.5 bar for diameters of a limited size. For diameter of 500 mm or more, the maximum pressure is 0.1 bar. For higher pressures, special types or PTFE lip seals can be used.
There are various sizes of industrial and ordinary oil seals, ranging from 0 to 33cm (13in). These varieties are also designed for different temperatures. As long as your seal matches the original equipment it’s intended for, you can be sure your machine will perform at its best. For further guidance and information regarding oil seals, don’t hesitate to contact our knowledgeable team. We are always available to assist you with your bearing, seal and gasket needs.
The block is unlikely to distort except after severe overheating, but check anyway using a steel ruler or similar high-quality straight-edge.
HOW OIL SEALS WORK


Oil seals are made from multiple compounds and materials. Some of the oldest, still in use today, are leather and felt compounds. The trend in mass production, however, has seen a move towards synthetic rubber or elastomers. Nitrile is by far the most popular material but developments in PTFE have created a surge of interest in buyers needing seals for high-speed shaft rotation applications. Viton is taking over from the polyacrylic and silicone, as it works better in high-temperature applications and has a high-resistance to abrasion and harmful chemicals.
They are typically made from elastomers such as rubber or silicone and consist of an outer metal case with a sealing lip on the inner side.