New Applications of Different Types of Self-Lubricating Bearings
Self-lubricating bearings are increasingly being used in a wide range of industrial applications due to their ability to reduce friction and maintenance needs. These bearings are designed to operate without the need for external lubrication, making them ideal for environments where regular oiling is impractical or costly. Below are some of the latest developments and applications of different types of self-lubricating bearings.
1. SF-2 Boundary Lubricated Bearing: This type of bearing is made from an acid-resistant polymethyl aldehyde material, known for its high wear resistance. It features a surface with evenly distributed oil reservoirs, which require the application of lubricating grease. It is particularly suitable for high-load rotational motion at low speeds, as well as for shaking or intermittent motion under heavy load. Unlike traditional bearings, it does not rely on a fluid film for smooth operation, and can function effectively even with minimal lubrication. With proper oiling during installation, the service life of the bearing can be significantly extended. It is commonly used in metallurgical, mining, water conservancy, automotive, construction, and agricultural machinery.
2. Oil-Free Self-Lubricating Bearing: This bearing is constructed using a steel plate base, with a middle layer of sintered bronze powder and a surface layer composed of a mixture of polytetrafluoroethylene (PTFE) and lead. It offers a low coefficient of friction, excellent wear resistance, and corrosion resistance. Since it requires no additional lubrication, it reduces costs, noise, and the risk of sticking or slipping. It is widely used in sliding parts of various machines, such as printing presses, textile machines, hydraulic pallet trucks, tobacco equipment, medical devices, fitness equipment, micro motors, cars, and motorcycles.
3. Metal-Based Solid Self-Lubricating Bearing: This innovative bearing combines the properties of traditional metal bearings with those of self-lubricating bearings. It uses a metal matrix as the base, and is coated with a specially formulated solid lubricant that provides long-lasting lubrication. It has a high load capacity, good impact resistance, and is heat-resistant. Its self-lubricating properties make it ideal for use in harsh environments where frequent maintenance is not feasible.
4. Traditional Oil-Impregnated Bearings: These bearings have been popular for their low noise levels and self-lubricating properties. They have become a favorite choice for computer CPU fans and are increasingly used in household appliances as demand for quieter operation grows. Their widespread use highlights their reliability and effectiveness in reducing maintenance and operational costs.
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Brass fasteners are used for their physical and aesthetic properties. Brass is utilized due to its high thermal conductivity and corrosion resistant properties, it is suitable for use in hot and cold environments, and resistant to water corrosion, making it a staple of industries such as heating and plumbing. Brass fasteners are largely non-magnetic (like any fastener, slight magnetic properties can develop during the manufacturing process) and resistant to tarnishing.
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