- When it comes to replacing the 4.6 valve cover gasket, timing is critical. While it may seem like a minor issue at first, neglecting a leaking gasket can escalate into major engine repairs. Regular inspections and prompt replacement when necessary can save car owners significant money in the long run.
- a. Nitrile Rubber (NBR) – this is the most commonly used material. It has good heat resistance properties and has good resistance to salt solutions, oils, hydraulic oils, and gasoline. Operating temperatures are recommended from -40 to 248⁰ F (-40 to 120 deg.C). Nitrile also functions well in a dry environment, but only for intermittent periods. The disadvantage of this material is poor chemical resistance.
Lift off the cover. It may need a gentle sideways tap to free it. Want to learn more? Read “Oil Seals 101, Part 2”.
- Improved Performance and Fuel Efficiency
- 1. Cost High temperature rubber gaskets are generally more expensive than other types of gaskets, which may limit their use in some applications.
- The size and shape of the seal must also be considered. Seals come in a variety of sizes and shapes to fit different applications. It is important to select a seal that is the correct size and shape for the application in question.
- The primary function of the 45x62x8 oil seal is to maintain a barrier between the lubricated parts of a machine and the external environment. This is particularly vital in applications where high-speed rotations or extreme pressure conditions are prevalent, such as in automotive engines, pumps, and industrial machinery. By preventing oil leaks, it ensures that the lubrication system operates smoothly, reducing wear and tear and prolonging the lifespan of the equipment By preventing oil leaks, it ensures that the lubrication system operates smoothly, reducing wear and tear and prolonging the lifespan of the equipment
By preventing oil leaks, it ensures that the lubrication system operates smoothly, reducing wear and tear and prolonging the lifespan of the equipment By preventing oil leaks, it ensures that the lubrication system operates smoothly, reducing wear and tear and prolonging the lifespan of the equipment
45x62x8 oil seal.
①
OS/MOS: Designates if dimensions are displayed in inches or millimeters
- A gasket, by definition, is a thin, usually circular or square, piece of material that is placed between two surfaces to create an airtight or watertight seal. In the case of square rubber gaskets, their unique shape allows them to fit snugly into the corners and edges of square or rectangular connections, providing a secure barrier against fluids, gases, or other substances that could potentially escape.

Material Code ISO 1629
Figure 4: Shaft end chamfer
There are several key factors to consider when selecting the right oil seal to best protect your application.
Why use NOK-CN factory-made oil seals?
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 6: Oil seals for cars
6. AMOUNT OF LUBRICANT: Seals perform better when lubricated but some machines will go through some dry spells. When this occurs using a leather or PTFE seal will be more beneficial as those type of seals can operate with less lubrication.
MH: O.D. wall is a rubber material
HM: O.D. wall is a metal case
MH(S)H: O.D. wall is metal with a reinforced inner metal case