- However, it's important to note that nitrile oil seals have limitations. They are not recommended for applications involving exposure to ozone, sunlight, or strong oxidizing agents. Also, their performance can be compromised in extreme temperature conditions, especially below -40°C or above 120°C. For these scenarios, alternative materials like fluoroelastomers or silicone may be more appropriate.
Oil Seal Overview
- An oil seal, also known as a rotary shaft seal, is a critical element in any machinery with rotating parts, including a rotavator. It serves as a barrier, preventing oil or other lubricants from leaking out while inhibiting dirt and debris from entering the internal mechanisms. In the context of a rotavator, the oil seal ensures that the lubricating oil stays within the transmission system, reducing friction and preventing wear and tear.
New Spark Plugs: Importance and Impact
Material Code ISO 1629

Selecting Quality Rubber Valve Cover Gaskets
The dimensions of the 25x47x7 oil seal refer to its inner diameter, outer diameter, and thickness, respectively. These measurements are important in ensuring a proper fit for the seal in the machine or engine it is intended for. By providing a secure seal between moving parts, the oil seal helps to maintain proper lubrication in the machine and prevent the loss of oil.

A more comprehensive study of aeration by Dinzburg8 showed that even a minimal level of aeration of an aggressive European SF oil led to protection of a VDF/HFP/TFE compound, but to severe deterioration of an HNBR compound. He notes that aeration increases the severity of aging in oil for silicone and acrylic elastomers, while decreasing the severity for FKM elastomers.
Heat resistance
Several variables, including maximum temperatures, required lubricants, available space, and more, may influence your choice of bearing seal. Each factor can affect the type of bearing best for your application, the amount of material required, and other factors. Although the choice of seals is crucial to the effectiveness of your bearings, you don’t have to make that choice alone. Our experts at NBC bearings can collaborate with you to identify the bearings and bearing seals that provide the best, most affordable solution for your application, environment, and finished product.
Engine oil seals are vital components in the automotive engine system, designed to prevent the leakage of lubricating oil and the ingress of contaminants. These seals play a critical role in maintaining the proper lubrication of the engine components, including the crankshaft, camshaft, and other critical parts. Engine oil seals contribute to the efficiency and longevity of the engine by preventing oil leaks and ensuring optimal performance.
Right Valve Cover Gasket: Essential Component for Engine Integrity
One of the key benefits of using a square rubber gasket is its flexibility and compressibility, allowing it to conform to irregular surfaces and provide a secure seal. This flexibility also makes it easy to install and remove, making maintenance and repairs more efficient.
Jiri George Drobny, in Fluoroelastomers Handbook (Second Edition), 2016