Selecting Quality Rubber Valve Cover Gaskets

To ensure correct fit and proper protection against contaminants, the inside diameter of an oil seal must be slightly smaller than the shaft diameter. 

You may need to take off the air cleaner (See Air filter change ), which may also have pipe connections.

Leather is probably the oldest of the lip materials still in common use, but the move towards mass production methods has seen a massive increase in the development of synthetic rubbers which lend themselves to accurate and repeatable injection and compression moulding. Nitrile (NBR) is still by far the most common elastomer for “normal” use, whilst Viton® (FKM/FPM) is rapidly replacing Polyacrylate (ACM) and Silicone (VMQ) for high-temperature applications. Viton® also has high resistance to abrasion and chemical attack making it a preferred elastomer. Recent developments in the use of PTFE for Rotary shaft seals has caused widespread interest particularly for high-speed shaft rotation or poor lubrication applications.

Because of the higher temperature resistance of FKM, this material is also chosen for applications where higher speeds play a role, which raise the temperature at the sealing lip considerably. Usually, using FKM will result in a longer life than using NBR. This compensates the higher price of FKM compared to NBR, as an FKM does not have to be replaced as frequently. The low temperature resistance of standard FKM is limited to -15 ˚C.

Pick the proper seal for your bearing with the NBC bearing.

2, oil seal lightweight, fewer supplies. Each type of oil seal is a combination of thin-walled metal parts and rubber parts, and its material consumption is very small so that each oil seal has a lightweight.

contaminated with moisture or any other particle. But the same oil will only last for a month at 212 degrees Fahrenheit if it’s contaminated with little water. This is why the function of an oil seal is very evident whenever it’s used.

Installing and replacing the 75x100x10 oil seal is a straightforward process that can be done by maintenance personnel with basic mechanical skills. It's important to ensure that the shaft and housing where the oil seal will be placed are clean and free of any debris or damage. Proper lubrication of the shaft is also crucial to prevent premature wear of the oil seal.

Refit the distributor, ensuring that the rotor arm is exactly in line with the first mark. If not, withdraw the distributor and try again.

Fitting an oil seal

Choose a seal that has the appropriate dimension needed for your application. The seal should properly fit the space between the stationary and rotating parts.