bearing bushes bronze brass

Tin Bronzes

Tin bronzes, also called red bronzes or leaded gunmetal, are highly sought after for their hardness, machinability, and resistance. We supply a wide range that meets the strictest international standards.

Tin bronze bushings

Tin bronze bushings, particularly those made from alloys like CuSn5ZnPb5, CuSn7ZnPb, CuSn10, CuSn12, CuSn12Ni2, and CuSn11Pb2, are highly valued in various industrial applications due to their excellent mechanical properties, wear resistance, and self-lubricating capabilities. Here’s a breakdown of their key features and applications:

Key Features:

  1. Hardness and Strength: Tin bronzes are known for their high hardness and strength, making them suitable for heavy-duty applications.
  2. Machinability: These alloys are easy to machine, allowing for the production of custom-sized bushings with precise dimensions.
  3. Wear Resistance: Tin bronzes exhibit excellent wear resistance, which is crucial for components like bushings that are subject to constant friction.
  4. Corrosion Resistance: They offer good resistance to corrosion, especially in marine and chemical environments.
  5. Self-Lubricating: Some tin bronze alloys have self-lubricating properties, reducing the need for external lubrication and maintenance.
  6. Thermal Conductivity: They have good thermal conductivity, which helps in dissipating heat generated during operation.

Common Alloys and Their Applications:

  1. CuSn5ZnPb5: This alloy is often used in general engineering applications where good machinability and wear resistance are required. It’s suitable for bushings, bearings, and gears.
  2. CuSn7ZnPb: Known for its balance of strength and machinability, this alloy is used in bushings, bearings, and other components that require durability and precision.
  3. CuSn10: This alloy offers higher strength and wear resistance, making it ideal for heavy-duty bushings and bearings in industrial machinery.
  4. CuSn12: With even higher tin content, this alloy provides superior wear resistance and is used in demanding applications such as heavy machinery and marine equipment.
  5. CuSn12Ni2: The addition of nickel enhances the alloy’s strength and corrosion resistance, making it suitable for bushings in harsh environments, including marine and chemical industries.
  6. CuSn11Pb2: This alloy combines good wear resistance with excellent machinability, making it a popular choice for bushings, bearings, and other precision components.

Custom Sizes and Self-Lubricating Options:

  • Custom Sizes: We can manufacture tin bronze bushings in custom sizes to meet specific requirements, ensuring a perfect fit for your application.
  • Self-Lubricating: Self-lubricating tin bronze bushings are available, which incorporate solid lubricants within the material to reduce friction and wear, extending the lifespan of the component.

Applications:

  • Automotive: Bushings, bearings, and thrust washers in engines and transmissions.
  • Industrial Machinery: Bushings and bearings in heavy machinery, pumps, and compressors.
  • Marine: Components exposed to seawater and high humidity, such as propeller bushings and rudder bearings.
  • General Engineering: Various components requiring high wear resistance and durability.

Standards:

Our tin bronze bushings are manufactured to meet international standards such as ASTM, DIN, and ISO, ensuring high quality and reliability.

For more information or to request a quote for custom-sized, self-lubricating tin bronze bushings, please contact us with your specific requirements.

Key Features of Tin Bronze Bushing Groove Bearings:

Tin bronze bushing groove bearings are a type of plain bearing made from tin bronze, a copper alloy that typically contains tin as the primary alloying element, along with small amounts of other elements like phosphorus, zinc, or lead. These bearings are known for their excellent wear resistance, low friction, and good corrosion resistance, making them suitable for various industrial applications.

  • Material Composition:

    Copper (Cu): Provides good thermal and electrical conductivity.
    Tin (Sn): Enhances strength, hardness, and wear resistance.
    Other Elements: Phosphorus (P) improves hardness and wear resistance, while lead (Pb) can be added to improve machinability and reduce friction.

  • Groove Design: Grooves are machined into the bearing surface to facilitate the distribution of lubricant, reducing friction and wear. Common groove patterns include straight, helical, and circumferential grooves.

  • Properties: High Load Capacity: Suitable for applications with high radial and axial loads.

    Good Thermal Conductivity: Helps dissipate heat generated during operation.

    Corrosion Resistance: Resistant to corrosion in various environments, including water and certain chemicals.

    Low Friction: Reduces energy consumption and wear.

  • Advantages:

    Durability: Long service life even under harsh conditions.

    Versatility: Can be used in a wide range of applications and environments.

    Cost-Effective: Provides a good balance between performance and cost.

Common Grades of Tin Bronze for Bushings

C93200 (SAE 660): High leaded tin bronze, excellent for high-load and low-speed applications.

C93700: High leaded tin bronze, suitable for general-purpose bushings.

C95400: Aluminum bronze, offers higher strength and wear resistance.

Selection Considerations

Load and Speed: Choose the appropriate grade and design based on the operational load and speed.

Environment: Consider the operating environment, including exposure to moisture, chemicals, and temperature extremes.

Lubrication: Ensure adequate lubrication is available to maintain bearing performance.

Tin bronze bushing groove bearings are a reliable choice for many demanding applications, offering a combination of strength, durability, and performance.

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