PTFE-Lined Stainless Steel Bushings – Self-Lubricating & Durable

Experience the Strength of Self-lubricating Bearings

PTFE composite plain bush, Metal/polymer composite plain bush, maintenance-free, ISO 3547, with Stainless Steel backing

Stainless steel bushes, particularly those with PTFE (polytetrafluoroethylene) composite and steel backing, are engineered components used in various industrial applications due to their unique properties. Stainless steel bushes with PTFE (polytetrafluoroethylene) composite and steel backing are precisely engineered for a range of industrial applications due to their exceptional characteristics. Upgrade your equipment with high-performance stainless steel PTFE-lined bushings. Superior durability, corrosion resistance, and self-lubricating properties ensure seamless operation.

Providing Brass, Bronze, and Specialty Copper Alloys, Copper Alloy Machining Services

Plain bearing stainless steel bushes / composite material

Material: Filler Added PTFE Layer, Sintered Bronze Layer. Steel-backed Metal Layer Tin Plating!

PTFE composite plain bearings are indeed an excellent choice for applications that demand a combination of strength, low friction, and self-lubrication.

Maintenance-Free: PTFE composite bearings require minimal or no maintenance, which is a significant advantage in environments where regular maintenance is difficult or costly.

Frictional Properties: The low friction coefficient of PTFE makes these bearings ideal for reducing energy consumption and wear, which can lead to longer service life and improved efficiency.

High Load Capacity: The steel backing ensures that these bearings can handle heavy loads, making them suitable for a wide range of industrial applications.

Temperature Resistance: The ability to operate in temperatures up to 250 degrees Celsius makes PTFE composite bearings suitable for high-temperature applications where other materials might degrade or fail.

PTFE BUSHES Stainless Steel Bushing

Self-Lubricating stainless steel Bushings:

Composite product consisting of three layers: steel-backed metal layer, sintered bronze layer and filler added PTFE layer.

Self-Lubricating: The PTFE-based layer provides self-lubrication, which is crucial in applications where traditional lubricants cannot be used or where the environment is hostile to lubrication.

Corrosion Protection: Tin-plating the steel backing adds an extra layer of protection against corrosion, which is important for the longevity and reliability of the bearings in harsh environments.

Heavy Load Applications: The combination of high load capacity and self-lubrication makes these bearings particularly well-suited for heavy load/medium speed applications where traditional bearings might fail prematurely.

Environmentally Friendly: The use of a lead-free sliding layer is important for meeting environmental regulations and avoiding the use of toxic materials.

Dry Sliding Bearings: PTFE composite bearings are designed to operate effectively even in the absence of a lubricating fluid, which can be an advantage in applications where lubrication is not feasible or where the presence of a lubricant could be problematic.

Self-Lubricating PTFE Bushings – Stainless Steel Backed
Optimize machinery with composite stainless steel PTFE-lined bushings. Plain, durable, and maintenance-free for smooth, reliable operation in corrosive or high-temp conditions.

Stainless Steel Bushes: These cylindrical bearings or bushings are crafted from stainless steel for its corrosion resistance, strength, and ability to endure challenging operating conditions.

Plain Bushes: Simple, solid cylindrical bearings without internal features like grooves or flanges. They reduce friction between moving parts and offer a straightforward, low-friction solution.

PTFE Composite: PTFE is a low-friction, chemically resistant plastic. It’s self-lubricating and can function in environments where lubrication is limited or unavailable. PTFE composites often blend PTFE with bronze or carbon fibers for enhanced mechanical performance.

Steel Backing: Steel backing reinforces the PTFE composite, providing extra strength and allowing the bushing to handle high loads while maintaining shape under pressure, ideal for heavy-duty applications.

Valve Sleeve Bearing: In valve systems, these bearings ensure smooth valve stem movement within the valve body, facilitating efficient operation and minimizing wear.

Precision in manufacturing is crucial for optimal fit and performance. The combination of stainless steel with PTFE composite and steel backing makes these bushes ideal for corrosive or high-temperature environments, as well as low-maintenance, long-lasting applications.

If you have questions about selecting or using these components in your specific setup, I’m here to help!

Stainless steel is a highly versatile material known for its corrosion resistance, making it suitable for a wide range of uses. Here’s a closer look at the different grades and classifications:

Grades 304 and 316: These are the most commonly used types of stainless steel.

  • 304 Stainless Steel: Known as 18/8 due to its 18% chromium and 8% nickel composition, this grade offers excellent corrosion resistance and formability. It’s ideal for food processing equipment, kitchen appliances, and architectural purposes.
  • 316 Stainless Steel: Similar to 304 but with 2-3% molybdenum for enhanced resistance to pitting and crevice corrosion, particularly in chloride environments. It’s often used in marine applications, chemical processing, and high-temperature settings.

Corrosion Resistance: Stainless steel’s resistance to corrosion comes from its chromium content, which forms a protective oxide layer when exposed to oxygen.

Chemical Composition: The specific mix of chromium, nickel, molybdenum, and other elements determines the steel’s characteristics and ideal applications.

Classification by Crystal Structure:

  • Austenitic Stainless Steels: These contain at least 10.5% chromium and 8% nickel, providing good formability and weldability due to their face-centered cubic (FCC) crystal structure. Grades 304 and 316 fall under this category.
  • Martensitic Stainless Steels: With a body-centered cubic (BCC) crystal structure, these steels can be hardened through heat treatment. They are magnetic and commonly used in cutlery and applications requiring strong, hard materials.
  • Ferritic Stainless Steels: Also featuring a BCC structure, these steels are less hardenable than martensitic ones but still have good corrosion resistance, often used in automotive exhaust systems.
  • Duplex Stainless Steels: Their mixed austenitic and ferritic structure provides high strength and excellent corrosion resistance, especially in chloride environments.
  • Precipitation Hardening Stainless Steels: These can be heat-treated for increased strength and hardness through precipitation hardening. They’re used where high strength and resistance to stress corrosion cracking are needed.

By understanding these grades and classifications, engineers can select the most suitable type of stainless steel for applications ranging from bearing bushings to other components requiring its unique properties.

Stainless steel fabric self-lubricating bearing valves combine the corrosion resistance and strength of stainless steel with the low-maintenance benefits of fabric self-lubricating bearings, making them ideal for fluid control. Here are the key features:

Stainless Steel Material: The valve’s main components are made from stainless steel, providing excellent corrosion resistance and strength. This makes it suitable for various chemical environments, including high humidity or salinity.

Fabric Self-Lubricating Bearings: These bearings are crucial moving parts that enable smooth valve stem movement. They’re typically made from specialized fabric materials with self-lubricating properties, reducing the need for additional lubrication and offering a solution in environments where conventional lubricants aren’t feasible.

Valve: Valves control the flow of liquids, gases, or slurries by adjusting the cross-sectional area of internal channels, regulating flow rate, pressure, or direction.

Valve Sleeve Bearing: The sleeve bearing allows the valve stem to move smoothly within the valve body, reducing friction and wear to improve reliability and extend the valve’s lifespan.

Applications: This type of valve is suitable for various industries, including chemical, oil, gas, food and beverage processing, pharmaceuticals, and water treatment, especially in environments requiring corrosion resistance, low maintenance, and reliable operation.

Maintenance: The fabric self-lubricating bearings minimize maintenance needs as they don’t require regular lubrication, which is a significant advantage in certain industrial settings.

Design: The stainless steel fabric self-lubricating bearing valve is designed for long-term stable operation while reducing downtime and maintenance costs.

Environmental Considerations: These valves are ideal for environmentally sensitive applications because fabric self-lubricating bearings function without traditional lubricants, reducing the potential for environmental pollution.

Performance: These valves ensure reliable performance under various operating conditions, including high temperature, high pressure, or chemically reactive environments.

Safety: The strength and corrosion resistance of stainless steel, combined with the low-friction characteristics of self-lubricating bearings, enhance the overall safety of the valve system.

Overall, stainless steel fabric self-lubricating bearing valves are high-performance fluid control devices suitable for industrial environments requiring corrosion resistance, low maintenance, and reliable operation.

The SF-1S valve bearing is specially designed to combine the corrosion resistance of stainless steel with the low friction of PTFE (polytetrafluoroethylene), making it ideal for use in fluid control equipment like valves. Here’s some key information about the SF-1S valve bearing:

Material Composition:

  • Typically uses stainless steel as the base, with a sintered corrosion-resistant alloy powder in the middle, and a low-friction PTFE layer on the surface.
  • This structure offers the corrosion resistance of stainless steel and the self-lubricating properties of PTFE.

Corrosion Resistance:

  • With stainless steel, the SF-1S bearing is resistant to oil, acid, alkali, seawater, and wear, making it suitable for chemical and marine environments.

Self-Lubricating:

  • The addition of PTFE ensures exceptional self-lubricating properties, allowing the bearing to operate without additional lubricants. This reduces maintenance needs and makes it suitable for environments where traditional lubricants cannot be used.

Applications:

  • Suitable for food and beverage machinery, chemical pumps and valves for moderate acid-alkali flow, pharmaceutical machinery, printing and dyeing machines, chemical equipment, and other corrosion-resistant sliding parts.

Eco-Friendly:

  • The PTFE coating on the SF-1S bearing is lead-free, making it ideal for environmentally sensitive applications.

Technical Advantages:

  • The SF series, including the SF-1S, features a three-layer composite structure: steel layer, copper powder layer, and plastic layer.
  • This design provides self-lubrication even without oil, ensures low working noise, and maintains long-lasting wear resistance.

Product Range:

  • The SF-1 series includes models like the SF-1X oil-free bearing and the SF-1T gear oil pump bearing to meet diverse application needs.

Manufacturing Process:

  • High-end equipment and automated production ensure tight wall thickness tolerances and high precision.
  • Advanced formula technology allows for customized operational condition simulations to meet customer requirements.

Performance Features:

  • The PTFE and oil-absorbing fiber mixture forms a protective transfer film during operation, safeguarding the mating shaft and improving wear resistance.

Environmental and Health Considerations:

  • Lead-free SF-1S bearings are suitable for industries requiring strict health and environmental standards, like food processing and pharmaceuticals.

Overall, the SF-1S valve bearing is a high-performance, corrosion-resistant, self-lubricating bearing designed for various industrial applications, particularly where long-term maintenance-free operation in harsh environments is required.

 

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Discover premium stainless steel PTFE-lined bushings. Composite design ensures superior load handling and self-lubrication. Enhance performance in demanding environments.”

Precision Engineered Stainless Steel PTFE Bushings

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