we offer oil seals made from the highest quality materials to ensure durable, reliable seals for a variety of applications. Our state-of-the-art machining services allow us to deliver custom seals to meet customer requirements for quantity, size, style, profile, and materials.
1. Criteria for selecting oil seals
• Rotational speed, etc. - Innovations in material science continue to enhance the performance of small rubber gaskets. New formulations resist deterioration from oils, acids, and other harsh chemicals, while also offering improved flexibility in extreme temperatures. As industries evolve, so too must these humble components to meet new challenges.
- Another important consideration is the compatibility of the main bearing oil seal with the engine's oil. The seal must be designed to withstand the chemical properties of the oil, such as its viscosity and additives, without deteriorating. Using the wrong type of oil can cause the seal to fail prematurely. Therefore, it is essential to use the recommended oil type for your engine to ensure the longevity and reliability of the main bearing oil seal.
What Is Oil Seal?



Please see the following for the types of sealing devices for bearings.
How to Select the Right Bearing (Part 7): Components surrounding the bearing
Oil seals, also known as rotary shaft seals, are designed to prevent oil leaks in rotating machinery by sealing the gap between a rotating shaft and a stationary housing. Proper installation of oil seals is essential to ensure a leak-free performance, which in turn helps to extend the life of the machinery. In this article, we will go over the steps for installing oil seals correctly.
(JIS* SUS304)
However, the new variant also comes with less good properties. Namely less flexibility and less resistance during assembly. Most damages therefore occur during the installation of PTFE oil seals.
Figure 1: Types of sealing devices
Common causes of oil seal failure

Make sure the fuel-pipe connections are clean. Unplug them and reconnect to the pump.
