Self lubricating bronze bushings
Self-lubricating bronze bushings are ideal for applications in hard-to-reach areas where manual lubrication is impractical.
Graphite-Impregnated Bronze Bushings and Bearings
Self-Lubricating Graphite Plugged Bronze Sleeve, bushings reduce maintenance and downtime.
Self-lubricating graphite plug bushings with bronze material and graphite inserts are specialized components designed to reduce friction and wear in mechanical systems. These bushings are an excellent choice for applications requiring reliable, low-maintenance, and long-lasting performance.
Bushings and bearings eliminate oil and oiling schedules; prevent oil or grease damage to products; Custom Designed Bearings for Your Equipment.
Most of our bearings are custom-designed for specific applications. Our engineers have extensive experience with various industrial machinery, and we likely have existing solutions for similar needs.
If you can use a standard bearing or pillow block, we offer a wide range of readily available standard graphite bushing parts. Otherwise, we can collaborate with you to create a tailored solution.
Self-lubricating graphite plug bushings perform where others fail. They can replace ball bearings, metal and plastic bushings, and standard hard carbon bushings.
Self-Lubricating Bearings: Copper Alloy Guide Elements with Solid Lubricant. We produce copper-based bearings and guide elements that incorporate solid graphite lubricant. These bearings are ideal for applications involving high loads and low speeds, particularly where oil or grease lubrication is impractical or unavailable. Our proprietary solid lubricant compound outperforms standard graphite inserts.
Graphite plug bushings are a type of bearing component designed for applications where traditional lubricants like oil or grease are not suitable or practical. These bushings are typically made from bronze and are embedded with graphite plugs, which serve as a solid lubricant. The graphite provides a slippery surface between the shaft and the bearing, reducing friction and wear over time.
One of the key advantages of graphite plug bushings is that they are maintenance-free, as they do not require external lubrication. This can significantly reduce maintenance time and costs, especially in environments where lubrication is difficult to apply or where contamination is a concern. Additionally, the self-lubricating nature of these bushings contributes to a longer service life, as there is less wear on the bearing surfaces.
These bushings are often referred to by various names in the industry, including “SelfLube,” “plugged graphite,” “graphited,” or simply “self-lubricating.” They are commonly used in a wide range of applications, such as in machinery, automotive components, and industrial equipment, where reliable and low-maintenance operation is essential.
Bronze Bushings: A Reliable Solution for Diverse Industrial Applications
In the realm of industrial machinery, the reliability and performance of components are paramount. Bronze bushings stand out as a superior choice for sectors such as valves, pumps, lifting, power transmission, and public works, offering a blend of durability, low friction, and adaptability to harsh environments.
Low Friction and High Performance
A key advantage of bronze bushings is their low coefficient of friction, which minimizes wear and tear, thereby extending the lifespan of the machinery. This characteristic is particularly beneficial in applications involving high loads and low speeds, where friction can be a significant challenge.
Adaptability to Harsh Environments
Bronze’s inherent corrosion resistance makes it ideal for operations in environments exposed to humidity, dirt, freshwater, and saltwater. Whether in marine settings or industrial plants, these bushings withstand the test of time, ensuring reliable performance.
Performance Metrics and Comparisons
Compared to alternatives like steel or plastic, bronze bushings offer superior friction management, wear resistance, and lifespan, particularly in demanding conditions. Their performance metrics consistently outshine those of competing materials.
Real-World Success Stories
Numerous case studies across various sectors highlight the successful implementation of bronze bushings, demonstrating their reliability and performance in real-world applications.
Bushing Sector-Specific Applications
Bronze bushings are widely used in various industrial applications due to their excellent wear resistance, low friction, and ability to withstand high loads. Here are some common types of bronze bushings:
1. Bronze Guide Bushings
- Description: These are cylindrical or flanged bushings used to guide and support moving parts in machinery.
- Applications: Commonly used in industrial machinery, automotive applications, and precision equipment.
- Variants: Straight, flanged, and grooved designs are available to meet specific requirements.
2. Machined Bronze Bushings
- Description: Custom-made bushings machined to precise specifications using CNC technology.
- Applications: Used in specialized machinery and equipment where standard bushings may not fit or perform adequately.
- Advantages: High precision, tailored to specific needs, and can include complex features like grooves, holes, or special shapes.
3. Flanged Bronze Bushings
- Description: Bushings with a flange at one end to provide additional support and prevent axial movement.
- Applications: Used in applications where the bushing needs to be retained in a specific position.
- Advantages: Provides better load distribution and prevents misalignment.
4. Thrust Bronze Bushings
- Description: Designed to handle axial loads, these bushings are used in applications where components need to rotate or slide along an axis.
- Applications: Commonly found in thrust bearings, automotive applications, and heavy machinery.
- Advantages: High load capacity and excellent wear resistance.
5. Spherical Bronze Bushings
- Description: These bushings have a spherical outer surface that allows for angular misalignment.
- Applications: Used in applications where alignment between components may not be perfect.
- Advantages: Accommodates misalignment, reduces stress, and extends the life of the bearing.
6. Bronze Composite Bushings
- Description: Made from a combination of bronze and other materials like PTFE or graphite for enhanced performance.
- Applications: Used in applications requiring low friction, high wear resistance, and the ability to operate in harsh environments.
- Advantages: Superior performance in extreme conditions, reduced friction, and longer lifespan.
7. Cylindrical Bronze Bushings
- Description: Simple, cylindrical bushings used in a wide range of applications.
- Applications: General-purpose use in machinery and equipment.
- Advantages: Easy to install, cost-effective, and versatile.
8. Grooved Bronze Bushings
- Description: Bushings with grooves on the inner or outer surface to facilitate lubrication or to hold additional components.
- Applications: Used in applications where lubrication needs to be distributed evenly or where additional components need to be secured.
- Advantages: Improved lubrication, better performance, and enhanced functionality.
Each type of bronze bushing has its own unique advantages and is suited to specific applications. The choice of bushing depends on factors such as load, speed, alignment, lubrication requirements, and environmental conditions.
Bronze bushings are a robust, high-performance solution for a wide array of industrial applications. Their durability, low friction, and adaptability to harsh environments make them an invaluable component in machinery, ensuring reliable operation and extended service life. By choosing bronze bushings, industries can achieve enhanced efficiency and reduced maintenance, ultimately leading to cost savings and improved performance.
Sector-Specific Applications
- Valves and Pumps: Handle diverse fluids with ease, thanks to bronze’s corrosion-resistant properties.
- Lifting Equipment: Endure heavy loads with minimal friction, ensuring smooth operations.
- Power Transmission: Maintain efficiency under varying temperatures and mechanical stresses.
- Public Works: Stand firm against environmental challenges, from humidity to saltwater exposure.
Maintenance-Free Operation
Industries value components that require minimal maintenance, and bronze bushings fit this criterion perfectly. Their durability and resistance to wear reduce the need for frequent replacements or upkeep, optimizing operational efficiency.
Economic Justification
While bronze may be more expensive than some alternatives, its longevity and performance benefits provide a strong economic case. The reduced need for maintenance and replacement outweighs the initial cost, making it a cost-effective choice in the long run.
Industry Standards and Certifications
To ensure quality and reliability, our bronze bushings meet stringent industry standards and certifications, such as ISO specifications, adding a layer of trust and confidence for our clients.
Installation and Replacement
Designed for ease of installation, these bushings are available in standard sizes and can be customized as needed, offering flexibility in various machinery setups.
Precision Manufacturing & Customization
Self-lubricating material functions as a bearing without extra lubrication, and these durable bushings require no additional lubrication.
Our bronze bushings are expertly crafted to meet precise client designs, ensuring exact tolerances for optimal performance and seamless integration into machinery, where even slight deviations can affect efficiency and durability.
Self-Lubricating Bearings: Copper alloy guiding elements with solid lubricant.
Types of Bearings
Bearing Bronze & Brass Bushing Standards
EN 1982 Bronze Bearing Materials Chart
Aluminium Bronzes
| EN 1982 Designation | Common Name | Comparable Standards | Composition (Typical) | Key Properties/Applications |
|---|---|---|---|---|
| CuAl10Fe2 (CC331G) | Aluminum Bronze | ASTM C95200, BS1400 AB1 | Cu + 10% Al, 2% Fe | High strength, corrosion resistance; used in heavy-duty bearings and marine environments. |
| CuAl10Fe5Ni5 (CC333G) | Nickel-Aluminum Bronze | ASTM C95500, BS1400 AB2 | Cu + 10% Al, 5% Fe, 5% Ni | Excellent wear resistance, high-temperature stability; ideal for industrial machinery . |
| CuAl11Fe6Ni6 (CC334G) | High-Nickel Aluminum Bronze | – | Cu + 11% Al, 6% Fe, 6% Ni | Superior load capacity; used in extreme-pressure applications. |
Tin Bronzes
| EN 1982 Designation | Common Name | Comparable Standards | Composition (Typical) | Key Properties/Applications |
|---|---|---|---|---|
| CuSn10 (CC480K) | Tin Bronze | ASTM C90700, BS B10 | Cu + 10% Sn | High wear resistance, good machinability; used in bearings and gears. |
| CuSn11Pb2 (CC482K) | Leaded Tin Bronze | ASTM C92700, BS PB4 | Cu + 11% Sn, 2% Pb | Combines strength with corrosion resistance; suited for heavy-load, low-speed bearings. |
| CuSn12 (CC483K) | High-Tin Bronze | ASTM C90800 | Cu + 12% Sn | Seawater-resistant, high tensile strength; used in couplings and worm gears. |
| CuSn5Zn5Pb5 (CC491K) | Leaded Tin Bronze | ASTM C83600, BS B555 | Cu + 5% Sn, 5% Zn, 5% Pb | Good machinability and anti-friction properties; common in general-purpose bushings. |
Leaded Bronzes
| EN 1982 Designation | Common Name | Comparable Standards | Composition (Typical) | Key Properties/Applications |
|---|---|---|---|---|
| CuSn7Zn4Pb7 (CC493K) | High-Lead Bronze | ASTM C93200, BS B476 | Cu + 7% Sn, 4% Zn, 7% Pb | Excellent emergency running properties; used in axle bearings and industrial machinery. |
| CuSn10Pb10 (CC495K) | Leaded Bronze | ASTM C93700, BS B1010 | Cu + 10% Sn, 10% Pb | Soft bearing material with conformability; ideal for high surface pressures . |
Brass Alloys
| EN 1982 Designation | Common Name | Comparable Standards | Composition (Typical) | Key Properties/Applications |
|---|---|---|---|---|
| CuZn25Al5Mn4Fe3 (CC762S) | Manganese Brass | ASTM C86300 | Cu + 25% Zn, 5% Al, 4% Mn, 3% Fe | High tensile strength; used in heavy-load applications like gears and marine components. |
| CuZn34Mn3Al2Fe1 (CC764S) | High-Strength Brass | ASTM C86200 | Cu + 34% Zn, 3% Mn, 2% Al, 1% Fe | Combines strength and corrosion resistance; common in automotive bushings. |
Key Standards Cross-Reference
- ASTM: B505 (continuous casting), B271 (centrifugal casting) .
- BS: 1400 (UK standards for copper alloys) .
- DIN: 1705, 1709, 1714 (German standards for casting) .
- PN-EN 1982: Polish-European norm for copper alloy ingots and castings .
Notes
- Self-Lubricating Options: Oil-impregnated (e.g., SAE 841, 863) and graphite-embedded (e.g., CDA 954) bronze bearings are common for low-maintenance applications.
- Mechanical Properties: For example, CuSn7Zn4Pb7 (C93200) has a tensile strength of ~30,000 psi and Brinell hardness of 65–70 HB.
For detailed mechanical data or specific applications, please send us an email.
ASTM B271 is a standard specification for centrifugal castings of bronze alloys used in bearing and bushing applications. Below is a chart detailing various bronze alloys that conform to ASTM B271, including their chemical compositions and common designations:
| Alloy Designation | Chemical Composition (wt%) | Common Designations |
|---|---|---|
| Aluminum Bronzes | ||
| CuAl10Fe5Ni5 (CC333G) | Cu: 85–90%, Al: 9–11%, Fe: 4–5%, Ni: 4–5% | C95400, C95500 |
| CuAl10Ni | Cu: 85–90%, Al: 9–11%, Ni: 4–5% | C95400 |
| C95800 | Cu: 81–85%, Al: 9–11%, Fe: 4–5%, Ni: 4–5% | C95500 |
| BS1400 AB2 | Cu: 85–90%, Al: 9–11%, Fe: 4–5%, Ni: 4–5% | C95400 |
| Tin Bronzes | ||
| CuSn10 (CC480K) | Cu: 90–92%, Sn: 8–10% | C90300 |
| CuSn10 | Cu: 90–92%, Sn: 8–10% | C90300 |
| B10 | Cu: 90–92%, Sn: 8–10% | C90300 |
| C52400 | Cu: 90–92%, Sn: 8–10% | C90300 |
| Tin Bronzes | ||
| CuSn12 (CC483K) | Cu: 88–90%, Sn: 10–12% | C90500 |
| CuSn12 | Cu: 88–90%, Sn: 10–12% | C90500 |
| C90800 | Cu: 88–90%, Sn: 10–12% | C90500 |
| Tin Bronzes | ||
| CuSn12Ni2 (CC484K) | Cu: 86–88%, Sn: 10–12%, Ni: 2% | C90700 |
| CuSn12Ni | Cu: 86–88%, Sn: 10–12%, Ni: 2% | C90700 |
| C91700 | Cu: 86–88%, Sn: 10–12%, Ni: 2% | C90700 |
| Tin Bronzes | ||
| CuSn5Zn5Pb5 (CC491K) | Cu: 85–90%, Sn: 4–6%, Zn: 4–6%, Pb: 4–6% | C93200 |
| CuSn5ZnPb / RG5 | Cu: 85–90%, Sn: 4–6%, Zn: 4–6%, Pb: 4–6% | C93200 |
| B555 | Cu: 85–90%, Sn: 4–6%, Zn: 4–6%, Pb: 4–6% | C93200 |
| C83600 | Cu: 85–90%, Sn: 4–6%, Zn: 4–6%, Pb: 4–6% | C93200 |
| Leaded Bronzes | ||
| CuSn7Zn4Pb7 (CC493K) | Cu: 85–90%, Sn: 6–8%, Zn: 4–6%, Pb: 6–8% | C93700 |
| CuSn7ZnPb / RG7 | Cu: 85–90%, Sn: 6–8%, Zn: 4–6%, Pb: 6–8% | C93700 |
| C93200 | Cu: 85–90%, Sn: 6–8%, Zn: 4–6%, Pb: 6–8% | C93200 |
| Leaded Bronzes | ||
| CuSn10Pb10 (CC495K) | Cu: 80–85%, Sn: 8–10%, Pb: 10% | C93700 |
| B1010 | Cu: 80–85%, Sn: 8–10%, Pb: 10% | C93700 |
| C93700 | Cu: 80–85%, Sn: 8–10%, Pb: 10% | C93700 |
| Leaded Bronzes | ||
| CuSn10Zn / Rg10 | Cu: 80–85%, Sn: 8–10%, Zn: 4–6% | C90500 |
| B102 | Cu: 80–85%, Sn: 8–10%, Zn: 4–6% | C90500 |
| C90500 | Cu: 80–85%, Sn: 8–10%, Zn: 4–6% | C90500 |
| Brass Alloys | ||
| CuZn25Al5Mn4Fe3 (CC762S) | Cu: 60–65%, Zn: 25–30%, Al: 4–5%, Mn: 3–4%, Fe: 2–3% | C86300 |
| CuZn25Al5 | Cu: 60–65%, Zn: 25–30%, Al: 4–5% | C86300 |
| C86300 | Cu: 60–65%, Zn: 25–30%, Al: 4–5% | C86300 |
| Brass Alloys | ||
| CuZn34Mn3Al2Fe1 (CC764S) | Cu: 60–65%, Zn: 30–35%, Mn: 2–3%, Al: 1–2%, Fe: 1% | C86200 |
| CuZn34Al2 | Cu: 60–65%, Zn: 30–35%, Al: 2% | C86200 |
| C86200 | Cu: 60–65%, Zn: 30–35%, Al: 2% | C86200 |
| Brass Alloys | ||
| CuZn32Al2Mn2F31 (CC763S) | Cu: 60–65%, Zn: 30–35%, Al: 2%, Mn: 2%, Fe: 1%, Pb: 1% | C86400 |
| CuZn32Al2Mn2F31 | Cu: 60–65%, Zn: 30–35%, Al: 2%, Mn: 2%, Fe: 1%, Pb: 1% | C86400 |
| C86400 | Cu: 60–65%, Zn: 30–35%, Al: 2%, Mn: 2%, Fe: 1%, Pb: 1% | C86400 |
*Note: The chemical compositions are approximate and may vary slightly based
Self lubricating bronze bushings
Our series offers self-lubricating bronze bushings designed for applications in hard-to-reach areas where manual lubrication is impractical.
A global technology in engineered self-lubricating bearings and industrial bronze bearing materials.
