- Oil seals are a critical component in the operation of machinery, providing a vital barrier between the internal lubricated parts and the external environment. These seals prevent the leakage of oil, which is essential for the proper functioning of the machine's components. They also prevent contaminants from entering the system, maintaining the quality of the oil and ensuring its longevity.
PTFE What Is Oil Seal?
Where to buy oil seals in the UK
No code: without minor lip
Always start by making sure the oil seal is facing the right direction. The oil seal must be positioned with its spring to the side of the medium to be sealed. The oil seal must then be pressed into the bore. It must fit tightly (H8 in the groove is recommended). Use appropriate tools for this, such as an impact socket set, to ensure that the force is applied evenly during pressing. The oil seal must never be hammered into the bore with brute force, but eased in.

14x24x6 oil seal. They are designed to withstand high temperatures and pressures, as well as the friction and heat generated by rotating shafts.
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Figure 7: Oil seals for steel production equipment (rolling mill)
Stainless steel sheet
(JIS* SUS304)
Ultimately, oil seals are devices that help to exclude dust and dirt, etc., while at all times retaining the lubricant in the piece of equipment.
There are several materials used to manufacture oil seals. They are discussed below.

Purpose of an Oil Seal
• Low-friction torque design