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China Best Sales OEM Metric Sleeve Reducer Drill Flange Aluminum Bushing 40mm Metal Iron Plastic Copper Bronze Brass Bushings bushing and ball joint

Product Description


Product Description

Copper and Copper Alloy Casting Methods

Many existing methods of producing copper base alloy castings may be broadly subdivided into 6 separate headings as follows:
1. Sand casting and CO 2  process
2. Shell molded casting
3. Die-casting
4. Chill casting
5. Centrifugal casting
6. Continuous casting
Other processes include precision investment casting and plaster mould casting.

Product Parameters


Material grade
Main features Applications
ZCuPb10Sn10 Lubrication performance, wear resistance and corrosion resistant performance is good, suitable for bimetal casting materials Surface pressure is high, and there is the lateral pressure of the sliding bearing, such as rolling rolling, vehicle use bearing, load peaks 60 mpa hit parts, as well as the highest CHINAMFG of 100 mpa bimetallic bearing bush of the internal combustion engine, and the piston pin sets, lining, etc.
ZCuPb15Sn8 Under the condition of lack of lubricant and use water quality lubricants, sliding and lubricating, free cutting, casting performance is poor, for dilute sulfuric acid corrosion resistant performance is good Surface pressure is high, and the lateral pressure of bearing, copper cooling pipe can be made from cold rolling mill, impact resistance load of up to 50 mpa parts, internal combustion engines of bimetallic bearing, mainly used for the biggest load of 70 mpa of piston pin set, acid-proof accessories
ZCuPb20Sn5 At higher sliding performance, in the absence of a lubricating medium and water as medium are particularly good self-lubricating performance suitable for bimetal casting material, sulfuric acid corrosion resistance, easy cutting, casting performance is poor High sliding speed of the bearing, and crusher, water pump, cold rolling mill bearings, piston pin load of 70 mpa
ZCuPb30 Have good self-lubrication, free cutting, casting performance is poor, easy to produce the gravity segregation High sliding velocity of bimetallic bearing shell, wearing parts, etc.
ZCuZn25Al6Fe3Mn3 With high mechanical properties, the casting performance is good, good corrosion resistance, has a tendency to stress corrosion Suitable for high strength, wear parts, such as bridge plate, nut, screw, wear-resistant plate, the slider, and worm gear, etc
ZCuZn26Al4Fe3Mn3 With high mechanical properties, the casting performance is good, in the air, water, and seawater corrosion resistance is good, can be welded Require high strength, corrosion resistant parts
ZCuZn38Mn2Pb2 Have higher mechanical properties and good corrosion resistance, abrasion resistance, good cutting performance General purpose structure, ship, instrument appearance, simple casting using such as sleeve, sleeve, bearings, slider, etc
ZCuZn40Mn3Fe1 With high mechanical properties, good casting properties and machinability, and in the air, water, and water has good corrosion resistance, has a tendency to stress corrosion cracking Seawater corrosion parts, pipe fittings and under 300 °C, manufacturing and other large Marine propeller castings
ZCuZn33Pb2 Structural material, feed temperature is 90 °C when good oxidation resistance, electrical conductivity of about 10 ~ 14 ms/m The shell of gas and water supply equipment, machinery manufacturing, electronics, precision instruments and optical instruments of component parts
Other standard and material ASTM, JIS, AISI, EN, BS;
Manganese brass: C86300 and etc.;
Tin bronze: C83600, C93200, CuSn12, CuSn7Zn4Pb7 and etc.;
Aluminum Bronze: C62900, C95400, C95500, CuAl10Fe5Ni5 and etc..


Specification Customized Bronze/Brass/Copper Alloy Centrifugal Casting Bushing with oil groove in China
Material Stainless steel, Alloy Steel, Brass, Copper, Aluminum, Aluminum alloy, Iron
Machining CNC machining center, CNC lathe
Casting tolerance IT5 – IT7,CT5-7
Machining tolerance +/- 0.005mm,ISO2768-f,ISO-mk
Heat treatment Solid solution annealed, quench and tempering
Weight range 0.1Kg-120Kg
Dimensions  ≤1200mm×800mm×400mm
Surface finish Ra 1.6-Ra 3.2
Finish Polishing ,Shoot blasting ,Glass bead sand blasting ,etc.



Customized copper casting





Brand Name


Model Number



Shaft, gear,bearing


Depends on customers’ technical drawing




Tin bronze, lead bronze, aluminum bronze, aluminum brass, manganese brass, lead brass, silicon brass

Alloy Or Not


Powder Or Not

Not Powder

Cu Content (%)


Processing Service





Customer’s Demand


copper and brass


1 PC

Our Advantages



Cast copper is a versatile material with a variety of alloys. The metal is used in plumbing fixtures, ship propellers, power plant water impellers and bushing and bearing sleeves because it is easy to cast, has a long history of successful use, is readily available from a multitude of sources, can achieve a range of physical and mechanical properties and is easily machined, brazed, soldered, polished or plated. In the U.S., copper accounts for approximately 2.8% of total casting production, according to the 2018 World Census of Casting Production reported by Modern Casting magazine. Following are 10 qualities of cast copper alloys design engineers should know.

1. Almost all copper alloys retain their mechanical properties at low temperatures. 

Typical mechanical properties of copper include good corrosion resistance, impact toughness, superior thermal and electrical conductivity, and the ability to inhibit marine organism growth.

2. All copper alloys can be produced via sand casting. 

Other casting methods conducive to copper alloys include centrifugal, continuous, permanent mold, investment and diecasting. The choice of alloy and casting method determines the mechanical and physical properties, section size, wall thickness and surface finish that can be achieved.

3. Leaded copper alloys still have several industrial applications

While leaded alloys are no longer used in potable water applications, they are still useful for other instances where low friction and wear rates are desired. For instance, high-leaded tin bronzes are cast into sleeve bearings and exhibit lower wear rates than steel.

4. As a class, cast copper-based alloys are easy to machine (especially when compared to stainless steels and titanium, their main competitors for corrosion resistance). 

Leaded copper-base alloys are the easiest to machine. These alloys are free-cutting and form small, fragmented chips while generating little heat. Next in order of machinability are moderate to high-strength alloys with second phases in their microstructures, such as unleaded yellow brasses, manganese bronzes and silicon brasses and bronzes. These alloys form short, brittle, tightly curled chips that tend to break into manageable segments. While the surface finish on these alloys will be good, the cutting speed will be lower and tool wear will increase.
The most difficult copper-base alloys for machining are the single-phase alloys such as high conductivity copper, chromium copper, beryllium copper, aluminum bronze and copper-nickel. Their general tendency during machining is to form long, stringy chips that interfere during high-speed machining operations. In addition, pure copper and high-nickel alloys tend to weld to the tool face, impairing surface finish.  

5. Post-casting processing can further enhance cast copper parts’ appeal. 

Secondary steps such as polishing, plating, soldering, brazing and welding can be performed on cast copper alloys for improved surface finish and high tolerance control.

Both gas-tungsten-arc and gas-metal-arc can produce X-ray quality welds when repairing minor defects in copper castings. Shielded-metal-arc welding also can be used, but the method is more difficult to control. Oxyacetylene welding mainly is used to join thin sections. Electron beam welding produces precise welds of high quality in both oxygen-free and deoxidized copper.

In general, alloys containing appreciable amounts of lead cannot be welded, as the lead remains liquid after the weld solidifies, forming cracks in high stress fields. All cast copper alloys can be brazed and soldered to themselves and to steel, stainless steel and nickel-base alloys. Even leaded copper alloys can be brazed, but the conditions must be controlled.

Copper phosphorous alloys, silver-based brazing alloys and copper-zinc alloys are most often used as filler metals. Gold-based alloys are used for electrical applications, and tin-based solders are used for household plumbing.

The heat of brazing may cause some loss of strength in heat-treated copper alloys, but special techniques have been developed to remedy the problem. When necessary, the entire brazed casting can be heat treated to produce a uniform structure. The corrosion resistance of copper-base alloys is not affected by brazing, except in special situations.

6. Cast copper comes in a wide range of alloy choices, making it a suitable candidate for many applications, depending on design loads and environment corrosivity.

7. Designing for cast copper alloys requires careful plHangZhou for thick and thin sections. 

Using both should be avoided, but when both are necessary, the thicker section should always be blended or tapered gradually into the thinner one. Thick-to-thin section design becomes an even larger problem for copper-base alloys with wide freezing ranges such as red brasses, tin bronzes and, to some extent, the medium freezing range alloys such as the yellow brasses. These alloys, which account for the highest level of casting production, do not solidify directionally. While proper risering helps combat this, it doesn’t have the same effect as directional solidification. 

To counteract the solidification issues with wide-freezing range copper alloys, metalcasters use chills and chromite and zircon sand cores to promote the proper solidification. Chilling these sections can be more effective than using a riser, though each of these tools increases the cost of a finished casting.

8. Whenever possible, L, T and X intersections should be avoided. 

When T sections cannot be avoided, adverse effects can be minimized by providing generous radii at corners and making the arms unequal in thickness. Additionally, “dimpling” (a small indent at the top of the T’s intersection) can help reduce the severity of hot spots. X intersections have particularly adverse effects in copper castings. They are almost always avoidable, though, by converting an X intersection into 2 offset T sections, for example.

9. Costs are comparable to other metals due to high yield, low machining costs and little requirement for surface coatings, such as paint. 

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Type: Clay Dry Sand
Casting Method: Directional Crystallization
Sand Core Type: Resin Sand Core
Application: Machinery Parts
Machining: CNC Machining
Material: Copper and Copper Alloy
US$ 5000/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

plastic bush

Are there specific guidelines for recycling or disposing of plastic bushings at the end of their life cycle?

When it comes to recycling or disposing of plastic bushings at the end of their life cycle, it is important to follow specific guidelines to promote environmental sustainability. Here’s a detailed explanation:

1. Recycling:

– Check with local recycling facilities or waste management organizations to determine if plastic bushings are accepted for recycling in your area. Recycling options may vary depending on the type of plastic material used in the bushings.

– If recycling is available, separate the plastic bushings from other components or materials before recycling. Remove any metal or non-recyclable parts attached to the bushings, if applicable.

– Clean the plastic bushings to remove any contaminants or residues that could affect the recycling process. Follow any specific cleaning instructions provided by the recycling facility or refer to general plastic cleaning guidelines.

– Consider contacting the manufacturer or supplier of the plastic bushings for guidance on recycling options. They may have information on specific recycling programs or initiatives available for their products.

2. Disposal:

– If recycling is not available or feasible, dispose of plastic bushings according to local waste management regulations. Check with local authorities or waste disposal facilities for guidelines on disposing of plastic components.

– In many cases, plastic bushings can be disposed of as regular non-recyclable waste. However, it’s essential to follow any specific instructions provided by local regulations or waste management authorities.

– If the plastic bushings contain any hazardous or toxic substances, such as heavy metals or chemicals, follow proper disposal procedures to prevent environmental contamination. Contact local hazardous waste facilities for guidance on disposing of such materials safely.

3. Manufacturer or Supplier Guidance:

– Reach out to the manufacturer or supplier of the plastic bushings for guidance on proper recycling or disposal methods. They may have specific recommendations or resources available to support environmentally responsible end-of-life management of their products.

– Manufacturers or suppliers who prioritize sustainability may have implemented take-back programs or recycling initiatives for their plastic bushings. Inquire about any available programs and follow their instructions for returning or recycling the bushings.

4. Consider Reuse or Repurposing:

– Before recycling or disposing of plastic bushings, consider whether they can be reused or repurposed in any way. For example, they might serve as components in DIY projects, crafts, or non-critical applications.

– If the plastic bushings are still in good condition and meet the requirements of another application, consider donating or selling them to individuals or organizations that can make use of them.

– Reusing or repurposing plastic bushings can help extend their lifespan and reduce the overall waste generated.

By following specific recycling or disposal guidelines, you can ensure that plastic bushings are managed in an environmentally responsible manner at the end of their life cycle. Recycling, proper disposal, seeking manufacturer guidance, and considering reuse or repurposing are important steps to promote sustainability and reduce the environmental impact of plastic waste.

plastic bush

Can I find reviews comparing the durability and performance of different types of plastic bushings?

Yes, it is possible to find reviews comparing the durability and performance of different types of plastic bushings. Reviews can be valuable resources for gaining insights into the real-world experiences of users and professionals who have tested and evaluated various plastic bushings. Here are some ways to find reviews comparing the durability and performance of different types of plastic bushings:

  • Online Retailers and E-commerce Platforms: Online retailers and e-commerce platforms that sell plastic bushings often have customer review sections where users can share their experiences and opinions. Browse through the product listings of plastic bushings and look for reviews or ratings provided by customers. While individual reviews may not directly compare different types of bushings, they can still offer valuable insights into the durability and performance of specific products.
  • Industrial Forums and Discussion Boards: Participating in online forums and discussion boards dedicated to industrial machinery, engineering, or related topics can provide access to valuable user experiences and comparisons. Engage in discussions, ask questions, and inquire about the experiences of professionals who have tested different types of plastic bushings. These platforms often have knowledgeable members who can share their insights and provide comparisons based on their firsthand experiences.
  • Industry Publications and Magazines: Industry-specific publications and magazines may feature articles, case studies, or product reviews that compare the durability and performance of different types of plastic bushings. Check online or physical copies of these publications related to the machinery, engineering, or industrial sectors for any available reviews or comparisons. These sources often provide in-depth analysis and expert opinions on the performance of various plastic bushings.
  • Manufacturer and Supplier Websites: Manufacturers and suppliers of plastic bushings sometimes publish technical articles, white papers, or case studies that highlight the performance characteristics and durability of their products. Visit the websites of reputable manufacturers or suppliers and explore their resources sections or technical documentation. While these sources may focus more on promoting specific products, they can still provide valuable information and insights into the performance of different types of plastic bushings.
  • Research Papers and Technical Journals: Academic research papers and technical journals in the field of materials science, engineering, or tribology may contain studies or comparative analyses of different plastic bushing materials. Access online databases of research papers or visit university libraries to search for relevant publications. These sources often provide scientific data, test results, and detailed evaluations of the durability and performance of various plastic bushings.

When reviewing and comparing different types of plastic bushings, it’s important to consider multiple sources and perspectives. Keep in mind that the performance of plastic bushings can be influenced by various factors, including application-specific conditions, load requirements, temperature ranges, and chemical exposures. Assessing reviews and comparisons in the context of your specific application and requirements can help you make informed decisions.

By utilizing reviews and comparisons, you can gain valuable insights into the durability and performance of different types of plastic bushings, helping you select the most suitable option for your specific needs.

plastic bush

Are there different types of plastic materials used in manufacturing plastic bushings, and how do they affect performance?

Yes, there are different types of plastic materials used in manufacturing plastic bushings, and the choice of material can significantly affect their performance. Here are some common types of plastic materials used in plastic bushings and how they can impact performance:

  • Nylon: Nylon is a widely used material for plastic bushings. It offers good wear resistance, low friction, and excellent load-carrying capacity. Nylon bushings are self-lubricating, reducing the need for additional lubrication. They are suitable for a wide range of applications and can operate in both dry and lubricated conditions.
  • PTFE (Polytetrafluoroethylene): PTFE, commonly known by the brand name Teflon, is a high-performance plastic material with exceptional low-friction properties. PTFE bushings have excellent chemical resistance, operate well in high-temperature environments, and exhibit low wear rates. They are often used in demanding applications where high precision and low friction are critical.
  • UHMW (Ultra-High-Molecular-Weight Polyethylene): UHMW is a durable and tough plastic material known for its high impact strength and abrasion resistance. UHMW bushings offer low friction, good chemical resistance, and excellent wear properties. They are commonly used in applications involving heavy loads, impact, or abrasive conditions.
  • POM (Polyoxymethylene): POM, also known as acetal or Delrin, is a high-strength engineering plastic with good dimensional stability and low friction. POM bushings exhibit low moisture absorption, excellent wear resistance, and a low coefficient of friction against metal surfaces. They are suitable for applications requiring high precision, low wear, and resistance to moisture or chemicals.
  • Composite Polymers: Composite polymers are materials that combine different plastic resins or incorporate reinforcing fibers or fillers. These composite materials can offer enhanced mechanical properties such as increased strength, improved wear resistance, or reduced friction. Composite polymer bushings are tailored for specific applications, and the choice of composite formulation depends on the desired performance characteristics.

The choice of plastic material for a specific application depends on various factors, including the operating conditions, load requirements, temperature range, speed, and environmental factors. Each plastic material has its own unique properties and advantages, which make them suitable for specific applications. For example, nylon bushings may be preferred for their balanced performance and versatility, while PTFE bushings excel in applications requiring low friction and high temperature resistance.

When selecting a plastic material for bushings, it’s important to consider factors such as load capacity, wear resistance, coefficient of friction, chemical resistance, temperature range, and compatibility with mating surfaces. Manufacturers and suppliers of plastic bushings can provide guidance on selecting the appropriate material based on your specific application requirements.

It’s worth noting that the performance of plastic bushings can be influenced by factors such as design considerations, surface finish, mating materials, and operating conditions. Proper installation, regular maintenance, and adherence to manufacturer guidelines are crucial for achieving optimal performance and longevity of plastic bushings in industrial applications.

By understanding the different types of plastic materials available and their impact on performance, you can make informed decisions when selecting plastic bushings for your specific application needs.

China Best Sales OEM Metric Sleeve Reducer Drill Flange Aluminum Bushing 40mm Metal Iron Plastic Copper Bronze Brass Bushings   bushing and ball joint		China Best Sales OEM Metric Sleeve Reducer Drill Flange Aluminum Bushing 40mm Metal Iron Plastic Copper Bronze Brass Bushings   bushing and ball joint
editor by CX 2024-02-26