Cast Bronze Bearing with Solid Lubricant Inserts
Maintenance-free Plain Bearings
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Bronze Bushing and Bearing Material – Sleeve & Flange More
Supplier of finished bronze bearings and copper alloy products, viiplus drives innovation with high-performance bronze bearing materials. Bronze Bushings with Lubrication Grooves: Our precision-engineered bronze bushings feature strategically placed lubrication grooves that ensure consistent and effective lubrication, minimizing wear and extending the lifespan of your machinery. Designed for high-load applications, these bushings provide reliable and efficient operation. Optimize your equipment’s performance and durability with our specialized lubrication-grooved bronze bushings. Custom-machined phosphor bronze bushingsHigh-load manganese bronze gears for industrial applications！
Cast Bronze Bushings with Solid Lubricant Inserts
Bronze Plain Bearings with Grease Reservoirs
Custom self-lubricating Parts Services, Graphite Lubrication Techniques in Bronze Bushings & Bearings
Graphite lubrication for bronze bushings and bearings is effectively achieved through two main methods: graphite plugging and graphite filled grooves. Graphite plugging entails drilling holes into the bronze component and then filling these with graphite, which guarantees a continuous lubrication supply as the component gradually wears. On the other hand, graphite filled grooves involve machining grooves directly into the bronze part and packing them with graphite, thus increasing the surface area for graphite exposure. Both graphite-plugged and graphite-filled grooves enhance the longevity and performance of your equipment, offering a dependable and low-maintenance lubrication solution.
Sliding Surface Features:
- Running-in film
- Solid lubricant inserts (graphite)
- Base material (bronze)
Self-lubricating ASTM C93200 Bronze Bearing, Cast Bronze Sleeve Bushings
We Are in Bronze Bearing Bushings and Other Non-Ferrous Metals.
The bearings are self-lubricating and maintenance-free, made from a centrifugally cast bronze alloy (ASTM B271 C93200) for bearings with an inner diameter (ID) greater than 180 mm, or a continuously cast alloy (ASTM B505 C93200) for bearings with an ID less than 180 mm. These bearings are highly wear-resistant, and their contact surfaces are equipped with inserts of solid lubricant plugs made of graphite, arranged in a specific pattern.
Our cast bronze sleeve bushings are crafted from premium cast bronze, ensuring high quality and durability. Available in standard sizes, they provide a cost-effective option for those requiring conventional dimensions. For specialized applications, we also offer precise machining of these standard-sized bushings to meet your specific requirements. Ideal for heavy-load applications, our bronze sleeve bushings deliver reliable performance and robust durability, making them an excellent choice for demanding settings.
Self-Lubricating Bronze Bearings Solutions
Bronze bearings are indeed commonly made from several standard bronze alloys, including C86300, C95500, and C93200. Each of these alloys offers unique properties suitable for different applications in bearing technology:
- C86300 (Manganese Bronze): This alloy is known for its high strength and resistance to wear and corrosion. It is often used in heavy-duty applications where high loads and slow speeds are involved, such as construction equipment and heavy machinery.
- C95500 (Nickel-Aluminum Bronze): This alloy provides excellent anti-friction and anti-wear characteristics, making it suitable for applications involving high loads and moderate speeds. It’s also resistant to corrosion and heat, making it ideal for aerospace, marine, and industrial applications.
- C93200 (High-Leaded Tin Bronze): This alloy offers excellent machinability and good resistance to corrosion. It’s commonly used in general-purpose bearings, bushings, and wear plates where moderate loads and speeds are present. The high lead content provides a natural lubricity, enhancing the bearing’s performance.
Each of these alloys is selected based on the specific requirements of the application, including load, speed, environment, and required lifespan.
Oversized Bearing Type
Oversized bronze bearings come in various sizes and configurations, including one-piece sleeve, split, flanged bearings, thrust washers, and wear plates. Many are customized with features like oil grooves, threading, and drilled holes. We provide both plain cast bronze and self-lubricating graphite-plugged bronze bearings to meet different needs. Self-lubricating bearings operate effectively over a wider temperature range than standard lubricated bronze bearings.
Bronze Standards Bearing and Bushing
We manufacture copper-based alloys, including bronzes and high tensile brasses, adhering to international standards such as ASTM, BS, EN1982, DIN, JIS, AS, and ISO. Our products are available in both inches and millimeters. Contact us for more information. Explore our most requested items, including:
- Plain bushings
- Flanged bushings
- Washers
- Plates
- Bearings
- Others
Bronze Bushings, Your Source for Bronze Bearings: More industries
Solid bronze bearings are ideal for demanding applications in harsh and contaminated environments, making them suitable for a wide range of uses.
Bronze bearing materials are chosen based on load, speed, environmental conditions, and expected lifespan, each offering unique properties for specific applications. Material Structure: Cast Bronze with Graphite Inserts.
Application Features: This alloy provides excellent mechanical strength and high load capacity, featuring solid lubricants for continuous lubrication, making it suitable for medium to high-load applications with frequent start-stop cycles.
Typical Applications: Toggle and tie bars in plastic injection machines, port machinery, dam gates, and mining equipment.
What Are Cast Bronze Bushings?
Cast bronze bushings are high-precision components manufactured from solid bronze alloy bars, typically produced through continuous or centrifugal casting and then machined to exact dimensions.
Unlike oil-impregnated bushings made from powdered metal, cast bronze bushings are dense and non-porous, giving them superior strength, durability, and load-bearing capacity.
Key benefits include:
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Excellent resistance to impact, wear, and corrosion
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Reliable performance under medium to heavy loads
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Suitability for high-temperature and harsh environments
Cast bronze bushings are widely used in industrial machinery, earth-moving equipment, hydraulic cylinders, pumps, and other demanding applications where long service life is critical. They generally require external lubrication for best performance and can be custom-machined to meet specific design requirements.
Custom Machined Bronze Bearing Alloys: A Comprehensive Guide by viiplus Bearings
Meta Description: Explore the advantages of phosphor bronze, leaded tin bronze, manganese bronze, and aluminum bronze bearings. Learn why choosing the right alloy matters for your application.
Introduction
In the world of industrial machinery and high-performance equipment, bronze bearings are indispensable for reducing friction, supporting heavy loads, and ensuring longevity. At VIIPLUS Bearings, we specialize in custom-machined bronze bearing parts tailored to meet the unique demands of your applications. This guide dives into four key bronze alloys we manufacture—phosphor bronze, leaded tin bronze, manganese bronze, and aluminum bronze—detailing their properties, benefits, and ideal use cases.
| Copper Alloys UNS No. | Cu% | Pb% | Sn% | Zn% | Fe% | P% | Ni% | Al% | Co% | Cr% | Mn% | S% | Sb% | Si% |
| C54400 | Rem. | 3.00-4.00 | 3.50-4.50 | 1.50-4.50 | 0.1 | 0.01-0.50 | ||||||||
| C86300 | 60.00-66.00 | 0.2 | 0.2 | 22.00-28.00 | 2.00-4.00 | 1 | 5.00-7.50 | 2.50-5.00 | ||||||
| C93200 | 81.00-85.00 | 6.00-8.00 | 6.30-7.50 | 1.00-4.00 | 0.2 | 0.15 | 1 | 0.005 | 0.08 | 0.35 | 0.005 | |||
| C95400 | 83.00 min | 3.00-5.00 | 1.5 | 10.00-11.50 | 0.5 | |||||||||
| C95500 | 78.00 min | 3.00-5.00 | 3.00-5.50 | 10.00-11.50 | 3.5 |
1. Phosphor Bronze Bearings (C54400)
Composition & Properties
Phosphor bronze is a copper-based alloy containing 0.5–11% tin and 0.01–0.35% phosphorus. The tin enhances corrosion resistance and tensile strength, while phosphorus boosts wear resistance, stiffness, and fine grain structure.
Key Benefits
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Exceptional toughness and low coefficient of friction.
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Ideal for high-wear environments due to superior durability.
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Performs well under moderate loads and speeds.
Applications
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Bushings, thrust washers, and sleeve bearings in automotive and marine systems.
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Electrical connectors and springs requiring fatigue resistance.
Why Choose VIIPLUS Bearings?
We precision-machine phosphor bronze (C54400) into custom shapes, ensuring smooth operation and extended service life for your machinery.
2. Leaded Tin Bronze Bearings (C93200/SAE 660)
Composition & Properties
Leaded tin bronze, or C93200 (SAE 660), contains 7–15% lead, offering excellent free-cutting properties, thermal conductivity, and lubricity.
Key Benefits
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Reduced friction and galling due to lead’s self-lubricating qualities.
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Easy to machine, making it cost-effective for high-volume production.
Applications
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General-purpose bearings, pump components, and hydraulic valve seats.
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Widely used in agricultural, construction, and industrial equipment.
VIIPLUS Bearings’ Expertise
As a trusted manufacturer of C93200 bearings, we deliver parts with consistent quality, ideal for applications requiring reliability under moderate stress.
3. Manganese Bronze Bearings (C86300)
Composition & Properties
Manganese bronze (C86300) combines copper, manganese, aluminum, and iron, achieving a tensile strength exceeding 110,000 KSI.
Key Benefits
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Exceptional load-bearing capacity and resistance to shock.
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Maintains performance in high-speed applications with proper lubrication.
Applications
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Heavy-duty gears, bushings, and bearings in mining, aerospace, and marine systems.
Why We Stand Out
VIIPLUS Bearings ensures C86300 parts are machined to precise tolerances, capable of withstanding extreme pressures while retaining corrosion resistance.
4. Aluminum Bronze Bearings (C95400, C95500)
Composition & Properties
Aluminum bronze alloys (C95400, C95500) are copper-based with aluminum, iron, and nickel, offering the highest strength among standard copper alloys. Heat-treatable for enhanced performance.
Key Benefits
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Superior corrosion and wear resistance, even in saltwater and acidic environments.
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Tensile strengths rivaling steel, ideal for heavy-load scenarios.
Applications
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Offshore drilling equipment, propeller shafts, and aerospace components.
VIIPLUS Bearings’ Capabilities
We produce C95400, C95500, and AMS 4880-C95510 in custom sizes bronze bearing, slide plate, ensuring solutions for the most demanding applications.
Conclusion: Partner with a Trusted Bronze Bearings Manufacturer
Selecting the right bronze alloy is critical to optimizing performance and longevity in your machinery. At viiplus Bearings, we combine decades of expertise with state-of-the-art machining to deliver custom bronze bearing parts that meet rigorous industry standards. Whether you need the low-friction properties of phosphor bronze or the unmatched strength of aluminum bronze, we provide tailored solutions for your unique needs.
Ready to Elevate Your Project?
Contact viiplus Bearings today to discuss your custom bronze bearing requirements. Let our engineers help you choose the perfect alloy for peak performance.
Keywords: Custom machined bronze bearings, phosphor bronze bearings manufacturer, C93200 bronze bearings, high-strength C86300 manganese bronze, aluminum bronze bearings C95400, viiplus Bearings.
Bronze bearings are highly versatile and can be manufactured in various forms to meet specific application requirements. Here are some of the common custom bearing designs made from bronze:
- Cylindrical Bushes: Standard sleeve bearings that support radial loads. They are commonly used in machinery where rotational or sliding movements are required.
- Flanged Bushes: These have a flange at one end to provide axial positioning and prevent movement along the axis of the shaft. They are useful in applications where the bearing needs to be fixed in place.
- Thrust Washers: Flat bearings that handle axial loads, preventing movement along the shaft. They are typically found in applications like automotive transmissions.
- Sliding Plates: Used in applications requiring sliding motion; they offer a large surface area to distribute the load evenly.
- Pintle Bearings: Utilized in heavy-duty applications and are capable of handling both radial and axial loads. They are often found in agricultural equipment and heavy machinery.
- Half-Bearings: These are semicircular and used when a full cylindrical bearing is not necessary. They are common in crankshaft and camshaft applications.
- Axial and Radial Segment Rings: Specialized bearings that support both axial and radial loads and are used in large-scale industrial machinery.
- Self-Aligning Spherical Bearings: These bearings compensate for shaft misalignment and are used in applications where alignment cannot be precisely controlled.
- Customized Bearing Designs: Bearings can be custom-made to meet specific requirements, including unusual shapes, sizes, or incorporating additional features like lubrication channels.
We can provide these bearings in various bronze alloys, depending on the application’s load, speed, and environmental requirements. This customization ensures optimal performance and longevity of the bearings in their specific applications.
Cast Bronze Bearing Alloys Specifications
| ALLOY | ASTM | SAE | AMS | MIL | FED |
|---|---|---|---|---|---|
| C90300 | B271, B505, B584 | J461, J462 (formerly 620) | C-15345, ALLOY 8, C-22087, C-11866, COMP. 26, C-22229 | QQ-C-390 | |
| C90500 | B271, B505, B22, B584 | J461, J462 (formerly 62) | 4845 | QQ-C-390 | |
| C90700 | B505 | J461, J462 (formerly 65) | QQ-C-390 | ||
| C92200 | B271, B505, B61, B584 | J461, J462 (formerly 622) | C-15345, ALLOY 9, B-16541 | QQ-C-390 | |
| C92300 | B271, B505, B584 | J461, J462 (formerly 621) | C-15345, ALLOY 10, B-16540 | QQ-C-390 | |
| C92700 | B271, B505 | J461, J462 (formerly 63) | QQ-C-390 | ||
| C93200 | B271, B505, B22, B584 | J461, J462 (formerly 660) | C-15.12, ALLOY 12 | QQ-C-390 | |
| C93400 | B505 | C-15345, ALLOY 11, C-22087, C-22229 | QQ-C-390 | ||
| C93500 | B271, B505, B584 | J461, J462 (formerly 66) | QQ-C-390 | ||
| C93700 | B271, B505, B22, B584 | J461, J462, 792 (formerly 64) | 4827, 4842 | QQ-C-390 | |
| C93800 | B271, B505, B66, B584 | J461, J462 (formerly 67) | QQ-C-390 | ||
| C94300 | B271, B505, B66, B584 | 4840 | QQ-C-390 | ||
| C95300 | B271, B505, B148 | J461, J462 (formerly 688) | C-11866, COMP. 22 | QQ-C-390 | |
| C95400 | B271, B505, B148 | 4870, 4871, 4872, 4873 | C-15345, ALLOY 13, C-11866, COMP. 23 | ||
| C95500 | B271, B505, B148 | J461, J462 | C-15345, ALLOY 14, C-22087, B-21230, C-22229 | QQ-C-390 | |
| C86300 | B271, B505, B22, B584 | J461, J462 | 4862 | C-15345, ALLOY 6, C-22087, C-11866, COMP 21, C-22229 | QQ-C-390 |
| C86400 | B271, B505, B584 | QQ-C-390 |
Overview of Bronze Alloys
Tin Bronzes (C90300, C90500, C90700)
Tin strengthens these alloys, providing high strength, hardness, and ductility. They offer excellent load-carrying capacity and wear resistance, particularly in corrosive environments like seawater. However, their hardness limits their ability to conform to rough shafts, necessitating clean lubrication systems and requiring shaft hardness between 300-400 BHN. Tin bronzes perform well with grease lubrication and boundary-film operation due to their ability to form polar compounds with lubricants.Leaded Tin Bronzes (C92200, C92300, C92700)
These alloys contain small amounts of lead to enhance machinability without significantly altering bearing properties. Some also include zinc for cost-effective strengthening. Their properties and applications are similar to tin bronzes.High-Leaded Tin Bronzes (C93200, C93400, C93500, C93700, C93800, C94300)
This group is characterized by high lubricity and is commonly used for general applications under medium loads and speeds. While they have lower strength than tin bronzes, they excel in antifriction and machining properties. Alloy C93200 is particularly versatile, while C93700 is recognized for its corrosion resistance in mildly acidic environments.Aluminum Bronzes (C95300, C95300HT, C95400, C95400HT, C95500, C95500HT, C95510)
Aluminum bronzes are the strongest copper-based alloys, capable of heat treatment. They provide high yield and tensile strength, suitable for applications requiring higher unit loads. However, they demand hardened shafts and smooth surfaces due to lower ductility and embedding capabilities. Their excellent corrosion resistance makes them ideal for marine applications.Manganese Bronzes (C86300, C86400)
These bronzes are modifications of Muntz metal-type alloys, incorporating manganese, iron, aluminum, and lead. They offer high strength and corrosion resistance, suitable for high-speed and heavy-load applications, but require high shaft hardness and non-abrasive conditions.
Bronze bearings are widely available in various forms and specifications, catering to diverse industrial needs. Here’s an overview of the types of bronze bearings available, their characteristics, and where to find them:
Types of Bronze Bearings
- C93200 (SAE 660) Bearing Bronze:
- A standard material known for its excellent anti-friction properties and strength.
- Commonly used in sleeve bearings and bushings.
- High-Leaded Tin Bronzes:
- Alloys like C93800 and C94300 provide high lubricity, suitable for moderate loads and high speeds.
- Aluminum Bronzes (e.g., C95400):
- Known for their high strength and corrosion resistance, making them ideal for marine applications.
- Manganese Bronzes (e.g., C86300):
- These alloys combine high strength with excellent corrosion resistance, suitable for heavy loads.
Availability
- Stocked Items:
- Many suppliers offer a wide range of standard bronze bushings and bearings.
- Custom Orders:
- If standard sizes do not meet specific requirements, manufacturers often provide custom-made bronze bushings tailored to client specifications. This includes options for machining to print or making parts from samples.
- We offer both standard and custom sizes, ensuring that clients can find the right fit for their applications.
Applications
Bronze bearings are utilized across various industries due to their durability and resistance to corrosion. Common applications include:
- Hydraulic systems: Where high load capacities and resistance to wear are essential.
- Marine environments: For components exposed to seawater, where corrosion resistance is critical.
- Heavy machinery: In applications requiring robust performance under high stress and load conditions.
In summary, bronze bearings are readily available in numerous types and sizes, with options for both standard and custom solutions. Their versatility and durability make them suitable for a wide range of industrial applications.
The bronze alloys you mentioned are specifically designed for various applications, particularly in environments that demand high corrosion resistance and mechanical strength, such as hydroelectric turbines and offshore structures. Here’s a detailed overview of the key bronze alloys you referenced, including their features, characteristics, and applications.
CuSn7ZnPb7 Bronze
Features and Applications:
- Corrosion Resistance: Excellent resistance to seawater, making it suitable for marine environments.
- Mechanical Properties:
- Max. Permissible Static Load: Typically around 250 N/mm².
- Max. Permissible Dynamic Load: Approximately 120 N/mm².
- Coefficient of Friction (Dry): Generally ranges from 0.15 to 0.25.
- Coefficient of Friction (Water): Usually lower than dry conditions, enhancing performance in lubricated environments.
- Max. pU Value: Can reach up to 1.5 MPa*m/s, indicating good performance under load and speed.
- Applications: Ideal for hydraulic steelwork and components in hydroelectric turbines due to its robust mechanical properties and corrosion resistance.
CuAl10Fe5Ni5 Aluminum Bronze
Features and Applications:
- Corrosion Resistance: Outstanding resistance to seawater and saline environments, making it suitable for offshore applications.
- Mechanical Properties:
- Tensile Strength: Approximately 650 MPa.
- Yield Strength: About 280 MPa.
- Elongation: Typically around 13%.
- Hardness: Approximately 150 HB.
- Applications: Used in heavy-duty bearings, gears, and components exposed to extreme conditions, such as hydraulic engineering and marine applications. It is also favored for its wear resistance and ability to withstand high temperatures.
CuZn25Al5Mn4Fe3 Brass Alloy
Features and Applications:
- Corrosion Resistance: Good resistance to seawater, making it suitable for marine applications.
- Mechanical Properties:
- Max. Permissible Static Load: Typically higher than standard brass, suitable for heavy-duty applications.
- Max. Permissible Dynamic Load: Designed for low sliding speeds under high loads.
- Applications: This alloy is particularly effective in applications requiring high strength and wear resistance, such as in machinery and structural components.
CuSn12 Bronze Bushings
Features and Applications:
- Corrosion Resistance: Excellent, especially in seawater environments.
- Mechanical Properties:
- Max. Permissible Static Load: Generally around 250 N/mm².
- Max. Permissible Dynamic Load: Approximately 120 N/mm².
- Outstanding Tribological Properties: Excellent wear resistance and low friction characteristics.
- Applications: Commonly used in hydraulic steelwork and marine applications, particularly where high wear resistance is needed.
CuAl11Fe6Ni6 Aluminum Bronze
Features and Applications:
- Corrosion Resistance: Highly resistant to seawater and extreme conditions.
- Mechanical Properties:
- Tensile Strength: High, suitable for heavy loads.
- Yield Strength: Typically above 300 MPa.
- Applications: Ideal for hydraulic engineering and steelwork applications, particularly in environments subject to high stress and corrosion.
These bronze alloys are engineered to provide exceptional performance in demanding conditions, making them suitable for a wide range of industrial and marine applications. Their unique compositions contribute to their mechanical strength, wear resistance, and corrosion resistance, ensuring reliability and longevity in service.
| Lubricating Alloy Bronze Alloy Bearing Materials | |||||
| Bronze Alloy No. | Material no. | DIN | Material Description | Chemical analysis, EN | Bronze Alloy Application, |
| Bronze | CuSn7Zn4Pb7 (CC493K) Standard EN 1982 | CuSn7ZnPb RG7 DIN 1705 2.1090 |
Rg7 or gunmetal | Cu 81,0 – 85,0 Sn 5,4 – 8,0 Zn 2,0 – 5,0 Pb 5,0 – 8,0 Ni 2,0 max. P 0,10 max. |
It has good sliding and dry running properties and has a good machinability. We can offer different sizes and alloys on request |
| Aluminium Bronze | CuAl10Fe5Ni5 (CC333G), EN 1982 | DIN 1714 | CuAl10Fe5Ni5-C (CC333G) | CuAl10Ni | Cu 76,0 – 83,0 Al 8,5 – 10,5 Ni 4,0 – 6,0 Fe 4,0 – 5,5 Mn 3,0 max. |
Aluminumbronze is characterized by high mechanical values, even at low and higher temperatures. |
| Aluminium Bronze | CuAl10Ni5Fe4 (CW307G EN 1982 | DIN 17665, 17672 | CuAl10Ni5Fe4 (CW307G) | Cu rest Al 8,5 – 11,0 Ni 4,0 – 6,0 |
Excellent corrosion and seawater resistance and very durable. Suitable for applications in aggressive environments. |
| Lead-bronze | CuSn10Pb10 (CC495K) EN 1982 | DIN 1716 | CuSn10Pb10-C (CC495K) | CuPb10Sn | Cu 78,0 – 82,0 Pb 8,0 – 11,0 Sn 9,0 – 11,0 Ni 2,0 max. Zn 2,0 max. Sb 0,5 max. |
The high lead component provides excellent dry running properties and gives a lower hardness. The mechanical properties change at an operating temperature above 200°C. Leaded bronze is suitable for bearings with a high surface pressure, is acid resistant and can even be used with water lubrication. |
| Brass | CuZn25Al5Mn4Fe3-C (CC762S) | CuZn25Al5 EN 1982 | DIN 1709 Alloy number CC762S 2.0598 |
CuZn25Al5Mn4Fe3-C, Standard EN 1982, CuZn25Al5, 2.0598 | Cu 60,0 – 67,0 Zn rest Al 3,0 – 7,0 Fe 1,5 – 4,0 Mn 2,5 – 5,0 Ni 3,0 max. |
The most common brass alloy is CuZn25Al5Mn4Fe3 also known as High-tension brass has high mechanical values and good wear resistance. High strength brass, the chemical formula is ZCuZn25Al6Fe3Mn3, mechanical properties are different zinc content, mechanical properties are not the same, pressure processing performance has good plasticity, can withstand cold and hot processing. |
| Phosphor Bronze CuSn8) | CuSn8 (CW453K) EN 12163 | DIN 17662, 17672 | CuSn8 (CW453K) DIN 17662, 17672 Alloy number CW453K 2.1030 |
Cu rest Sn 7,5 – 8,5 P 0,01 – 0,4 Fe 0,1 max. Ni 0,2 max. Pb 0,02 max. Zn 0,2 max. |
Phosphorbronze (CuSn6 and CuSn8) are characterized by their purity of the alloy with the addition of phosphor. Specific characteristics of phosphor bronzes are: Very high wear resistance Very high loads Corrosion and seawater proof Good heat conductivity Suitable for applications operating at high temperatures. All rights to the listed content are reserved by https://www.viiplus.com/ |
| Designation | SAE | Nominal Composition, Wt% | ||||||||
| UNS | Cu | Sn | Pb | Zn | Fe | Ni | P | Al | Other | |
| Leaded Red Brass | ||||||||||
| C83600 | 40 | 85 | 5 | 5 | 5 | – | – | – | – | – |
| Tin Bronzes | ||||||||||
| C90300 | 620 | 88 | 8 | – | 4 | – | – | – | – | – |
| C90500 | 62 | 88 | 10 | – | 2 | – | – | – | – | – |
| C90700 | 65 | 88 | 11 | – | – | – | – | – | – | – |
| Leaded Tin Bronzes | ||||||||||
| C92200 | 622 | 88 | 6 | 1.5 | 4.5 | – | – | – | – | – |
| C92300 | 87.3 | 8 | 0.7 | 4 | – | – | – | – | – | |
| C92700 | 63 | 88 | 10 | 2 | – | – | – | – | – | – |
| High-Leaded Tin Bronzes | ||||||||||
| C93200 | 660 | 83 | 7 | 7 | 3 | – | – | – | – | – |
| C93400 | – | 84 | 8 | 8 | – | – | – | – | – | – |
| C93500 | 66 | 85 | 5 | 9 | 1 | – | – | – | – | – |
| C93600 | M-64 | 80 | 7 | 12 | 1 | – | – | – | – | – |
| C93700 | 64 | 80 | 10 | 10 | – | – | – | – | – | – |
| C93800 | 67 | 78 | 7 | 15 | – | – | – | – | – | – |
| C94100 | – | 73 | 5.5 | 20 | 1 | – | – | – | – | – |
| C94300 | (AMS-4840) | 68 | 5 | 25 | .8 | – | 1 | – | – | – |
| C94500 | – | 72 | 7 | 19 | 1.2 | – | 1 | – | – | – |
| High-Strength Brasses | ||||||||||
| C86300 | 430B | 63 | – | – | 25 | 3 | – | – | 6 | 3 Mn |
| C86400 | – | 59 | – | 1 | 40 | – | – | – | – | – |
| Aluminum Bronzes | ||||||||||
| C95300 | 68b | 89 | – | – | – | 1 | – | – | 10 | – |
| C95300HT | – | 89 | – | – | – | 1 | – | – | 10 | – |
| C95400 | – | 85 | – | – | – | 4 | – | – | 11 | – |
| C95400 HT | – | 85 | – | – | – | 4 | – | – | 11 | – |
| C95500 | – | 81 | – | – | – | 4 | 4 | – | 11 | – |
| C95500 HT | – | 81 | – | – | – | 4 | 4 | – | 11 | – |
| C95520 | – | 75 | – | – | – | 5 | 5 | – | 11 | 3 Mn |
| C95800 | – | 79 | – | – | – | 4 | 4.5 | – | 9 | 1 Mn |
| Silicon Brasses | ||||||||||
| C87600 | – | 90 | – | – | 5.5 | – | – | – | – | 4.5 Si |
| C87900 | – | 65 | – | – | 34 | – | – | – | – | 1 Si |
| Copper Berylium Alloys | ||||||||||
| C82800 | – | 96.6 | – | – | – | – | – | – | – | 2.6Be/ |
| .5Co/ | ||||||||||
| .25Si | ||||||||||
| Leaded Copper | ||||||||||
| C98820 | 484 | Rem | – | 42 | – | – | – | – | – | – |
| Lead.-Free Bronze | ||||||||||
| C89320 | – | 89 | 6 | – | – | – | – | – | – | 5 Bi |
Nominal Compositions of the Most Common Cast Bearing Bronzes.
Understanding Lubrication Groove Options: A Guide to Optimal Mechanical Performance
In the world of mechanical engineering, ensuring the smooth operation of moving parts is paramount. One critical aspect of this is the design and implementation of lubrication grooves. These grooves play a vital role in maintaining the efficiency and longevity of components such as bearings and shafts. In this blog post, we’ll delve into the various lubrication groove options available and how they can be tailored to meet specific application requirements.
The Importance of Lubrication Grooves
Lubrication grooves are channels or pathways designed to distribute lubricant evenly across the surface of moving parts. Proper lubrication reduces friction, minimizes wear and tear, and prevents overheating. Without effective lubrication, mechanical components can suffer from increased friction, leading to premature failure and costly downtime.
Common Types of Lubrication Grooves
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Straight Grooves: These are linear channels that run parallel to the axis of a shaft or bearing. Straight grooves are simple to manufacture and are effective in applications where uniform lubrication is required along the length of the component.
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Helical Grooves: These grooves spiral around the circumference of a shaft or bearing. Helical grooves are particularly useful in applications where the component rotates, as the spiral design helps to distribute lubricant more evenly during motion.
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Circular Grooves: Also known as annular grooves, these are circular channels that run around the circumference of a component. Circular grooves are often used in conjunction with other groove types to ensure lubricant reaches all necessary areas.
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Combination Grooves: In some cases, a combination of straight, helical, and circular grooves may be used to achieve optimal lubrication. This approach allows for more complex lubrication patterns tailored to specific operational needs.
Factors Influencing Groove Design
When designing lubrication grooves, several factors must be considered to ensure they meet the application’s requirements:
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Load and Speed: The amount of load and the speed at which the component operates can influence the type and size of the grooves needed.
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Lubricant Type: Different lubricants have varying viscosities and flow characteristics, which can affect groove design.
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Component Geometry: The shape and size of the component will dictate the feasible groove configurations.
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Operational Environment: Factors such as temperature, pressure, and exposure to contaminants can impact groove design and lubrication effectiveness.
Visualizing Lubrication Groove Options
To better understand the different lubrication groove options, a technical diagram or illustration can be incredibly helpful. Such a diagram typically showcases various groove configurations, highlighting their unique features and applications. For instance, a diagram might compare straight, helical, and circular grooves, illustrating how each type distributes lubricant under different conditions.
Conclusion
Lubrication grooves are a fundamental aspect of mechanical design, ensuring that moving parts operate smoothly and efficiently. By understanding the different groove options and their applications, engineers can make informed decisions that enhance the performance and durability of mechanical components. Whether you’re working on a simple shaft or a complex bearing system, the right lubrication groove design can make all the difference.
Stay tuned for more insights into mechanical engineering best practices and innovative design solutions. If you have any questions or need further information on lubrication grooves, feel free to reach out!
Browse Bronze Bearing availability
Solid bronze bearings are crafted from CuSn7Zn4Pb7 continuously cast bronze, composed of 85% copper, offering excellent sliding properties. All surfaces are machined. Other available alloys include CuAl10Ni, CuSn10, and CuSn12.
Bronze bearings are crafted from various bronze alloys, each specifically designed for different applications according to their mechanical properties and corrosion resistance. Here is an overview of common bronze bearing alloys:
