O-rings are widely used in various dynamic and static sealing applications due to their low manufacturing cost and ease of use. O-rings are an automatic bidirectional sealing element. During installation, the radial and axial pre-compression gives the O-ring its own initial sealing ability. It increases with the increase of system pressure.

Under the action of cyclic load, the contact surface of the bearing is prone to fatigue damage, that is, cracking and peeling, which is the main damage form of the bearing. Therefore, in order to improve the service life of the bearing, the bearing steel must have a high contact fatigue strength.

The most commonly used oil seals are also called shaft seals or rotary shaft seals and vary depending on the application requirements and the type of equipment they are used in. Here are some of the most commonly used oil seal types:

Oil seals are a type of sealing element designed specifically for mechanical equipment. They are mainly used to prevent the leakage of lubricating oil and prevent external dust and impurities from entering the equipment. They are usually made of elastic materials and can be securely installed on the moving parts of the equipment, such as shafts, hubs, etc.

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