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Bearing Support Seal

Source: China Bearing Network | Time: 2013-03-16

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A bearing seal is a critical component that prevents contaminants from entering the bearing and ensures that lubricants remain inside. It is typically installed around the outer part of the bearing, including the housing, shaft, and end cover areas. The primary function of a bearing seal is to maintain the integrity of the bearingâ€™s internal environment, which directly affects its performance and lifespan. When selecting a sealing solution for bearings, several factors should be considered, such as the type of lubricant used (grease or oil), the rotational speed at the sealing interface, and the potential misalignment or tolerances in the equipment. If the application requires low maintenance, has high-speed requirements, or involves significant shaft misalignment, non-contact seals may be more suitable. Non-contact seals work by using either voids or centrifugal force to prevent leakage. These types of seals are ideal for high-speed applications where contact might cause excessive friction or wear. To enhance their effectiveness, additional features like centrifugal or stagnant plates can be added. These help control the flow of lubricant and improve the sealing efficiency. In harsh environments where moisture or contaminants could enter the bearing, contact-type seals are often preferred. These include oil seals, grease seals, and mechanical seals. Contact seals provide a tighter barrier but may generate more heat and require regular maintenance due to friction. Choosing the right type of seal depends on the specific operating conditions of the bearing. Proper sealing not only extends the life of the bearing but also reduces downtime and maintenance costs. Understanding the different types of seals and their applications is essential for engineers and technicians working with rotating machinery. Related Articles: - How to deal with the problem of overheating of imported bearings: "Spindle bearing oil" function and characteristics - KOYO bearing identification specifications and maintenance conditions - Analysis on the Importance of FAG Bearing Data and Analysis of Damage Methods of Sliding Bearings This article is sourced from http://www.chinabearing.net. Please reference the original source when sharing. Previous: The characteristics of rare earth ceramic bearings in SKF bearings: A discussion on the cleanliness of GCr15 bearing steel produced by the converter process.

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