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Carbon and graphite products for machinery industry, specific products include: graphite sealing rings, sealing rings, graphite bearings, lubricating columns, graphite blades, mechanical sealing parts impregnated with various metals or resins.
Home Products Machinery Industry / Graphite Bearings
Graphite bearings are a valuable solution for applications requiring self-lubrication, high-temperature resistance, chemical compatibility, and clean operation. Careful consideration of the application requirements and proper material selection are crucial for ensuring optimal performance and longevity. Always consult with bearing manufacturers or experts for specific application recommendations.
Graphite bearing is a commonly used lubricant part in the industrial machinery and is divided into radial bearing and thrust bearing. Bearing materials include metal, nonmetal and composite materials. Graphite bearing is a sliding bearing with high mechanical equipment performance requirements.
Unlike metal bearings, graphite bearing has self-lubrication, qualitative light, high temperature resistance, corrosion resistance and other superior properties. It can not only be used in high temperature, low temperature, high speed and low speed sliding conditions, but also can be used in strongly corrosive gas and liquid media conditions. It is widely used in centrifugal pumps, submersible pumps, liquid pumps, and other mechanical equipment.
Excellent self-lubrication.
High thermal conductivity and thermal stability.
Good chemical corrosion resistance.
Good wear resistance and high mechanical strength.
Pumps: Submersible pumps, chemical pumps, high-temperature pumps.
Ovens and Furnaces: Where high temperatures preclude the use of traditional lubricants.
Food Processing Equipment: Where cleanliness and avoidance of lubricant contamination are critical.
Textile Machinery: High speeds and potential for contamination.
High-Temperature Conveyors: Transporting materials through high-temperature environments.
Nuclear Reactors: Graphite is used as a moderator and structural material, and graphite bearings can be used in related equipment.Cryogenic Applications: Some graphite composites are suitable for very low-temperature applications.
Railway applications: In railway wagon axle bearings.
Pure Graphite: Graphite with minimal additives. Suitable for low-load, high-temperature applications.
Resin-Impregnated Graphite: Graphite impregnated with resins to improve strength, hardness, and resistance to wear.
Metal-Impregnated Graphite: Graphite impregnated with metals (e.g., bronze, babbitt) to improve load-carrying capacity and wear resistance.
Carbon-Fiber Reinforced Graphite: Graphite reinforced with carbon fibers for increased strength and toughness.
Load: Determine the maximum load the bearing will need to support.
Speed: Consider the rotational speed of the shaft.
Temperature: Identify the operating temperature range.
Environment: Evaluate the chemical environment and potential for exposure to water, solvents, or other substances.
Wear Rate: Graphite bearings wear over time, so estimate the expected wear rate and bearing life.
PV Value (Pressure-Velocity): A critical parameter for determining bearing suitability. PV value is the product of the bearing pressure and the sliding velocity.
Exceeding the recommended PV value can lead to rapid wear and failure.
Mating Surface: The hardness and surface finish of the shaft or mating surface are important for minimizing wear.
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