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self lubricating bearings

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Oil-impregnated bronze, specifically SAE 841 bronze, is a material widely used for manufacturing self-lubricating bearings and bushings.

The oil-impregnated sintered bronze’s high wear resistance and anti-friction characteristics make it an outstanding choice for guide bushings.

Oil Impregnated Bronze Bushings (SAE841) are renowned for their exceptional qualities, making them versatile for a wide range of uses. The following are the principal attributes of SAE841 Oil Impregnated Bronze Bushings:

Chemical Composition: Predominantly made of copper, SAE841 contains 87.5-90.5% copper.

Density: The density of SAE841 is between 6.4 and 6.8 grams per cubic centimeter.

Porosity: The volume porosity of SAE841 stands at around 19%.

Physical and Mechanical Characteristics: Notable for its superior wear resistance, flexibility, and ability to resist corrosion, SAE841 is a robust material.

Self-Lubricating Feature: SAE841 bushings are designed with oil impregnation for ongoing self-lubrication, ideal for scenarios where regular maintenance is challenging.

Temperature Tolerance: SAE841 bushings can function effectively at temperatures as high as 250°C.

Load Bearing Capacity: With a substantial load-bearing capability, SAE841 bushings are effective for bearing heavy loads at moderate speeds or lighter loads at higher speeds.

Owing to these attributes, SAE841 Oil Impregnated Bronze Bushings are excellently suited for a variety of applications, such as in water pumps, electrical generators, and motors.

oil impregnated sintered bronze

Oil-impregnated bronze, especially the SAE 841 variant, is a favored choice for crafting self-lubricating bearings and bushings. This bronze type is celebrated for its superior wear resistance and extended service life, which is crucial in scenarios where standard lubrication methods are impractical. SAE 841 bronze, a powdered metal, is infused with oil and subjected to intense heat and pressure to mold it into desired shapes, such as round rods or hollow bars. During operation, the bearing exudes a thin oil layer from the material, ensuring continuous self-lubrication for the interacting shaft. Once the machinery halts, the bearing’s capillary action draws the oil back into the bronze, ready for the next cycle of operation.

Oil-impregnated sintered bronze is an alloy composed of copper, tin, and other elements, created through a hot-press sintering process. After oil impregnation, this material boasts a smooth and shiny surface, along with excellent physical and chemical properties, including high wear resistance and corrosion resistance. As a result, it is extensively used in the manufacturing of bearings, gears, thin-walled tubes, and various components.

However, while oil-impregnated sintered bronze offers numerous advantages, its application should also consider factors such as cost, processing difficulty, and the environmental conditions of use. Moreover, the performance and lifespan of oil-impregnated sintered bronze can be affected by operational conditions and maintenance. Therefore, a comprehensive evaluation based on specific circumstances is necessary when selecting and using oil-impregnated sintered bronze.

In summary, oil-impregnated sintered bronze is a high-performance, widely-used alloy material that holds a significant place in mechanical manufacturing and related fields.

Oil-impregnated sintered bronze is an alloy composed of copper, tin, and other elements, created through a hot-press sintering process. After oil impregnation, this material boasts a smooth and shiny surface, along with excellent physical and chemical properties, including high wear resistance and corrosion resistance. As a result, it is extensively used in the manufacturing of bearings, gears, thin-walled tubes, and various components.

However, while oil-impregnated sintered bronze offers numerous advantages, its application should also consider factors such as cost, processing difficulty, and the environmental conditions of use. Moreover, the performance and lifespan of oil-impregnated sintered bronze can be affected by operational conditions and maintenance. Therefore, a comprehensive evaluation based on specific circumstances is necessary when selecting and using oil-impregnated sintered bronze.

In summary, oil-impregnated sintered bronze is a high-performance, widely-used alloy material that holds a significant place in mechanical manufacturing and related fields.

SAE841 Oil Impregnated Bronze Bushings are crafted from a specialized sintered bronze material designed for self-lubricating and maintenance-free usage. This material is produced via powder metallurgy, a process that compacts bronze powder under intense pressure before heating it to bond the particles. This results in a porous material capable of oil absorption, serving as a lubrication reservoir.

Key Attributes and Features of SAE841 Oil Impregnated Bronze Bushings:

  • Chemical Composition: These bushings consist predominantly of copper, with concentrations ranging from 87.5 to 90.5%.
  • Density: SAE841 has a density varying between 6.4 and 7.5 grams per cubic centimeter.
  • Porosity: With a porosity level around 19% by volume, these bushings can effectively absorb and store oil.
  • Self-Lubricating Feature: Thanks to its porous nature, the bushing absorbs oil and releases it under varying loads and temperature shifts, ensuring consistent lubrication.
  • Temperature Endurance: They can withstand temperatures as high as 250°C.
  • Load Bearing Capacity: These bushings are well-suited for handling heavy loads at moderate speeds or lighter loads at higher speeds.

Applications of SAE841 Oil Impregnated Bronze Bushings span a wide range, from agricultural and aircraft equipment to business machines, automotive components, conveyors, cranes, appliances, generators, hydraulic systems, machine tools, packaging machinery, and more. Their exceptional wear resistance and longevity make them particularly valuable in situations where regular lubrication is challenging or unfeasible.

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We provide a variety of services to assist you in creating functional prototypes and transitioning to production components. Manufacture custom parts as needed, utilizing various materials for self-lubricating bearings. Reach out to us to benefit from our expert applications engineering team’s production capabilities.

  • Industry specialists are equipped to manage your manufacturing requirements at every phase of product development.

  • Provides top-notch, on-demand self-lubricating bearings for both prototypes and production components.

  • A wide selection of materials, including bronze alloy grades and metal bearing substances, is at your disposal.

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