PB2 Phosphor Bronze Bushing
PB2 Phosphor Bronze Bushing
Self-lubricating bronze bearings are engineered for applications where external lubrication is impractical. Solid lubricants are compressed and molded directly into the bearing to guarantee a maintenance-free product. No additional lubrication is necessary.
Reliable PB2 Phosphor Bronze Bushing
Unlock the true potential of your machinery with PB2 Phosphor Bronze Bushings. Designed to deliver exceptional performance, these bushings are the perfect solution for reducing friction and ensuring smooth operations. Crafted with precision using high-quality phosphor bronze material, these bushings provide outstanding wear resistance, extending the lifespan of your equipment and reducing maintenance costs.
Long-Lasting Industrial Bushings
Durable Phosphor Bronze Bushings
Phosphor bronze alloys have long been valued for their excellent wear resistance, high strength, and good machining characteristics. Among them, PB2 phosphor bronze stands out with its slightly increased tin content, making it an ideal choice for applications subject to medium to high loads and speeds.
Ensure your machines stay in peak condition with PB2 Phosphor Bronze Bushings‘ unmatched durability and reliability. These bushings are engineered to withstand the most demanding environments, including heavy loads and harsh operating conditions. Say goodbye to frequent replacements and interruptions
As a manufacturer of Bronze bearings and bushings, we employ the casting route, specifically using sand casting and centrifugal casting techniques. Sand casting is a traditional method that involves creating molds from compacted sand, while centrifugal casting uses centrifugal force to distribute molten metal into a mold, producing high-quality cylindrical components like bushings.
Our process ensures that the PB2 Bronze components are supplied in proof machine condition and can also be provided with a final grinding finish as per the customer’s specific requirements. This flexibility allows us to cater to various industries and applications with precise tolerances and surface finishes.
Quality Control
At our facility, maintaining the desired material composition is of utmost importance. We have our own material testing laboratory where we conduct rigorous chemical and mechanical testing. This enables us to adhere to customer-specific requirements and ensure that the PB2 Bronze alloy meets the necessary standards for performance and durability.
At our company, we take pride in offering a diverse range of top-notch products to cater to your needs. Among our exceptional offerings are Phosphor Bronze Bushes, Phosphor Bronze Parts, Gun Metal Bushes, Gun Metal Parts, Dry Lubricated Bushes, and Dx Dry Lubricated Bushes.
Furthermore, we provide a variety of Du Dry Lubricated Washers, Dx Dry Lubricated Washers, Sintered Bronze, Iron Sintered Self-Lubricated Bushes, Iron Sintered Self-Lubricated Parts, Dry Lubricated Bushes, and Aluminum Bronze Bushes, all proudly made in china.
Not only that, but we also specialize in manufacturing Aluminum Bronze Bushes, Aluminum Bronze Parts, Graphite Filled Bushes, Graphite Filled Parts, Half Shell Bearings Bushes Steel, Backed Bimetal, White Metal, Tri-Metal, Sintered Bronze, Dry Bushes, and Dry Washers. Our range of products is extensive, catering to various requirements.
Chemical Composition of PB2 Phosphor Bronze
The composition of PB2 phosphor bronze is as follows:
- Copper (Cu): Balance
- Tin (Sn): 11.0-13.0% (Nominal: 11.5%)
- Lead (Pb): 0.50% maximum
- Zinc (Zn): 0.30% maximum
- Nickel (Ni): 0.50% maximum
- Iron (Fe): 0.10% maximum
- Aluminium (Al): 0.01% maximum
- Phosphorus (P): 0.15-0.6% (Nominal: 0.35%)
Mechanical Properties of PB2 Phosphor Bronze
- Tensile Strength: Minimum 300 N/mm² (44,000 psi)
- Yield Strength: Minimum 180 N/mm² (26,000 psi)
- Elongation: Minimum 10%
- Hardness: Minimum 100 BHN
Comparative Specifications
PB2 Phosphor Bronze conforms to various international specifications, including:
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- BS1400 – PB2
- AS1565 – 90810
- ASTM B427 – C90800
- ASTM B505 & B271 – C90700
- SAE 65
- JIS H5121 – CAC502C (PBC2C)
- DIN 1705 – G – CuSn12
- ISO 1338 – CuSn11P
Wide Range of Bronzes Material
Apart from PB2 Phosphor Bronze, we offer a diverse range of Bronze alloys produced through both centrifugal and sand casting techniques. Some of the other bronze materials we deal in include:
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- Aluminium Bronze (AB1 & AB2): Known for its high strength and corrosion resistance, aluminium bronze finds applications in marine environments and high-stress applications.
- Phosphorus Bronze (PB1 & PB2): As mentioned earlier, PB2 Bronze boasts excellent wear resistance, making it suitable for bushings, bearings, and thrust washers.
- Gunmetal (LG2): With good machinability and moderate strength, gunmetal is commonly used in general engineering and plumbing fittings.
- High Tensile Brass (HTB1, HTB2, HTB3): These brass alloys are specifically designed for high-stress applications where strength and durability are crucial.
- Other Special Customized Grades: Our expertise extends beyond standard alloys, and we can produce customized bronze materials tailored to meet specific project requirements.
- Self-Lubricating Bushes and Slide Plates (Graphite Bronze Materials): Incorporating graphite into bronze alloys enhances self-lubricating properties, reducing friction and wear in moving parts.
PB2 Bronze Bushings for CAFD Crust Breaker Cylinders
1. Harsh Smelter Operating Conditions
The Crust Breaking and Alumina Feeding Device (CAFD) in aluminum smelters works under extreme heat, abrasive alumina dust, fluorides, and constant pneumatic impacts. The guide bushing keeps the chisel rod precisely aligned during high-speed crust breaking operations.
2. Why BS1400 PB2 Phosphor Bronze?
BS1400 PB2 is a high-tin phosphor bronze designed for heavy-duty wear applications.
Key Properties
- High tin content (11–13%) improves hardness and wear resistance
- Phosphorus increases fatigue strength and reduces friction
- Excellent resistance to abrasive alumina particles
- Strong impact resistance for repeated hammering cycles
- Better thermal stability than brass or standard bronze
3. Performance Advantages in CAFD Systems
Abrasion Resistance
PB2 prevents alumina dust from embedding into the bushing surface, reducing scoring and wear.
Impact Durability
Handles repeated side loads and shock impacts from crust breaker strokes without cracking.
Heat Resistance
Maintains strength and seizure resistance near high-temperature reduction pots.
Low Friction Operation
Provides reliable performance even during poor lubrication or dry-running conditions.
4. Self-Lubricating Upgrade Option
For longer service life and reduced maintenance, graphite-plugged bronze bushings are an excellent upgrade.
Recommended Materials
- C86300 Manganese Bronze
- C95400 Aluminum Bronze
Benefits
- Maintenance-free dry operation
- Eliminates grease contamination by alumina dust
- Graphite creates a self-lubricating film
- Improved wear life in dusty environments
5. Manufacturing Recommendations
Preferred Casting Methods
- Centrifugal casting
- Continuous casting
These methods produce dense, porosity-free bushings with better mechanical strength.
Precision Machining
- Tight tolerance fits (F7/H7)
- Surface roughness: Ra ≤ 0.8 μm
- Ensures smooth rod movement and reduced friction
Conclusion
BS1400 PB2 phosphor bronze is an ideal material for CAFD guide bushings due to its outstanding wear resistance, impact strength, and thermal stability. For severe dust conditions and reduced maintenance, graphite-plugged self-lubricating bronze bushings offer an even more durable solution.
Increase Efficiency By 30% With Pb2 Phosphor Bronze Bushing – Shop Now!
Key Features of PB2 Phosphor Bronze
- High Wear Resistance: PB2 phosphor bronze, thanks to its increased tin content, offers excellent wear resistance. This property makes it particularly suitable for applications involving constant friction and mechanical stress.
- Corrosion Resistance: PB2 demonstrates good corrosion resistance, especially in harsh environments like saltwater and brine. As a result, it finds extensive use in marine applications where protection against corrosive elements is essential.
- Superior Strength: The alloy’s high strength enables it to handle heavy working loads and high-speed operations, making it suitable for components subject to significant stress.
- ‘Gear Bronze’ Characteristics: Often referred to as ‘gear bronze,’ PB2 is commonly utilized in gears and worm wheels due to its durability and mechanical properties that align well with gear applications.
Applications Of PB2 Phosphor Bronze
- Pump and Valve Components: The alloy’s corrosion resistance and mechanical properties make it an excellent choice for pump and valve components, ensuring their longevity and performance.
- Bushes and Bearings: PB2 is favored for the manufacturing of bushings and bearings, where it can endure the high loads and speeds typical of such applications.
- Flanges and Hydraulics: Its strength and wear resistance also make PB2 suitable for use in flanges and hydraulic systems.
- Marine Ultrasonics: PB2 Phosphor Bronze Bushing’s corrosion resistance makes it suitable for marine ultrasonic applications.
- Excavation & Cranes: PB2 bushings can withstand the mechanical stresses experienced in heavy-duty machinery like excavators and cranes.
- Linear Bearings: PB2’s wear resistance makes it valuable for linear bearing applications.
Comparison With PB1 Phosphor Bronze
Compared to PB1 phosphor bronze, PB2 has a slightly higher tin content, which contributes to its improved wear resistance. Both alloys are suitable for high working loads and speeds, with good corrosion resistance to seawater and brine. PB1 is often used in pump and valve components, while PB2 is favored for gear applications and other heavy-duty components.
With its widespread use in gears, bearings, pump components, and more, PB2 continues to be a reliable choice for applications subjected to medium to high loads and speeds. By choosing PB2, engineers and manufacturers can ensure longevity and optimal performance in their products, thanks to the alloy’s superior properties and controlled manufacturing techniques.
Continuous Cast Bronze Bushings, Wear Plates, and Slide Plates (PB2)
Continuous Cast Bronze Bushings, Wear Plates, and Slide Plates made from PB2 have proven to be valuable assets across a wide range of industries. With its excellent machining properties, high strength, shock resistance, and corrosion resistance to seawater and brine, PB2 demonstrates its suitability for applications in pump and valve components, bearings, and heavy-duty gears.
Consider PB2 as a top-notch option to ensure optimal performance, longevity, and resistance to adverse conditions. PB2, known by various names in different countries, complies with international standards, ensuring its acceptance and recognition worldwide:
Britain: BS1400 PB2
USA: SAE 65 ASTM 505-B427-C90800
Japan: JIS H5121-CA502C PBC2C
Germany: DIN 1705 G–CUSn12
Enhance Your Machinery with High-Quality Phosphorous Bronze Bushes
Phosphor Bronze bushes and components stand as a testament to the relentless pursuit of engineering excellence. Combining anti-friction properties with plasticity, this versatile material excels in a wide range of industrial applications, ensuring smooth operation and longevity in the face of heavy loads and challenging conditions. Whether in machinery, automotive, or electrical components, the reliability and performance of Phosphor Bronze make it a sought-after material for engineers and manufacturers worldwide. Embrace the power of Phosphor Bronze to elevate your products to new heights of efficiency and durability.
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