Bushing Expert2024-05-20T01:59:20+00:00

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Welcome to Bronzeoilless.com, your trusted destination for premium bushing expertise. Explore our comprehensive collection of meticulously crafted oilless bearings, designed to perfection to deliver unmatched performance across a variety of industrial applications.

Bronzeoilless.com’s tribological solutions propel the industrial sector forward, bringing us closer to the future. Trusted in tens of thousands of vital applications worldwide, our products serve industries globally on a daily basis. Our aim is clear: to offer reliable, maintenance-free surface solutions for almost any application, regardless of where our products are needed.

With top-notch quality, service, and design, our cast bronze bearings boast precise tolerances, proprietary internal geometries, and premium materials, ensuring optimal performance and longevity.

Your Bushing Expert bronze wear plate
Connect with the bushing experts today. Reach out to us at una@viiplus.com to discuss your bushing needs and explore our range of solutions.Connect with the bushing experts today. Reach out to us at una@viiplus.com to discuss your bushing needs and explore our range of solutions.

Choose Your Bushing Material


In the domain of industrial applications, prioritizing smooth operation, longevity, and minimal upkeep is crucial. These bronze bushings represent a significant advancement, blending bronze’s robustness and resilience with graphite’s self-lubricating capabilities. This fusion yields numerous benefits, bolstering performance, cutting down friction, and elongating the lifespan of pivotal components.

Unveiling Enhanced Performance and Dependability: Delving into the Advantages of Bronze Bushings Featuring Graphite Inserts

Various materials find application in bushings, each possessing distinct properties and uses. Discover the materials that make us the bushing expert.


Explore How Our Expertise Translates Into Versatile Applications

The integration of cast bronze bushings and oilless bearings presents innovative solutions applicable across a spectrum of domains. Whether in technology, healthcare, education, business, or the arts, our products serve as pivotal components driving innovation, resolving challenges, and influencing the future landscape.

Our reach extends to global customers across varied markets and unique geographical regions worldwide. Through our expanding portfolio of engineered bearings and power transmission brands, we are committed to addressing the dynamic needs of our global clientele as they evolve over time.

bronze bushings minimize friction, wear, and maintenance requirements

Tailored Manufacturing Services – Custom Bronze and Brass Parts

As a bronze bushing manufacturer, we understand the significance of offering customized solutions that perfectly align with our client’s requirements. That’s why we’re thrilled to introduce our bespoke manufacturing services, where we specialize in crafting bronze and brass parts based on custom drawings, tailored to your specific material preferences and varied size specifications.

At Bronzeoilless.com, we pride ourselves on our ability to deliver precision-engineered solutions that exceed expectations. Our team of experienced engineers and technicians possesses the expertise and dedication to transform your ideas and drawings into high-quality bronze and brass parts that precisely match your unique needs. Whether you require custom bushings, bearings, or any other component, we have the capabilities to bring your vision to life.

Your Bushing Expert bronze bushing manufacturer
Your Bushing Expert bronze bushing manufacturer

Versatile Properties of Our Oilless Bearings

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Oilless bearings, also known as self-lubricating bearings, stand as the epitome of reliability and performance in the realm of industrial machinery. Our oilless bearings are designed to excel in diverse working environments, including:

  • Chemical exposure: Resistant to corrosion from acids, alkalis, and other harsh chemical
  • Temperature range: From -40°C to 300°C, Our oilless bearings boast an impressive temperature tolerance, allowing them to withstand extreme conditions without compromising performance.
  • Capable of handling rotational speeds up to 10,000 RPM or higher
  • Tolerance range: Typically within ±0.002 inches or tighter
  • High load-bearing capacity: Capable of supporting heavy loads up to 100,000 PSI.

our oilless bearings embody versatility, durability, and performance, making them the preferred choice for a wide range of industrial applications. With their ability to thrive in challenging environments and deliver consistent results, our bearings empower industries to achieve optimal efficiency and reliability. Contact us today to explore how our oilless bearings can elevate the performance of your machinery and equipment.

Types Of Bronze Bushing

Your Bushing Expert straight oilless bearing
straight bushing

A straight bushing is a cylindrical component typically made of metal or plastic, with a central hole running through it. It is used to reduce friction and wear between two moving parts or to provide a bearing surface for a rotating shaft.

Your Bushing Expert flanged bushing
Flanged Bushing

A flanged bushing is a type of bushing that has a flange or rim extending outward from one end. they are commonly used in various mechanical applications where accurate alignment, retention, and load distribution are important

JZW Self-Lubricating Bearing Split type bush Bearing
Split Bushing

A split bushing is a type of bushing that is designed with a break or gap along its length, allowing it to be easily installed or removed from a shaft or housing without having to slide it over the end.

Engine Bearings thrust washer bearings
bronze thrust washer

A bronze thrust washer is a type of washer made from bronze material and specifically designed to handle axial loads or thrust loads in mechanical systems. These washers are often used in applications where there is relative motion between two surfaces, such as rotating or reciprocating machinery.

wear strips, Slide Bearing Plate Supplier,wear plate for injection mould
wear plate

A wear plate, also known as a wear liner or wear pad, is a flat, often rectangular-shaped component typically made from durable materials such as steel, aluminum, or composite materials. Its primary function is to protect surfaces from abrasive wear, impact, or frictional damage caused by the movement of machinery, equipment, or materials.

spherical plain bearing
Spherical Bearing (SPS)

A spherical bearing oilless bushing, also known as a spherical plain bearing or oilless bushing, is a type of bearing designed to accommodate angular misalignment between two connected parts. Unlike traditional ball bearings, which operate with rolling elements, spherical bearings use sliding surfaces to allow for movement in multiple directions.

FAQs about Bronze Bushings

Sand Cast vs. Centrifugal Cast Bronze Bearings2024-04-12T05:06:15+00:00

What Is The Difference Between Sand Cast vs. Centrifugal Cast Bronze Bearings?

Sand casting and centrifugal casting are two distinct methods for producing metal parts, each with its own characteristics and applications. Sand casting is suitable for various shapes and sizes, making it ideal for creating intricate parts in various shapes. It is also known for its fast turnaround times and can be used for both small and large production runs. On the other hand, centrifugal casting is typically reserved for symmetrical parts, such as tubes, and is limited in its ability to produce special shapes and certain lengths. It is often used to create cylindrical parts and can be employed with a wide range of alloys, including aluminum, copper, bronze, and stainless steel. The centrifugal force generated during the process pushes the metal against the mold’s walls, creating a hollow part. Additionally, centrifugal casting is known for producing high-quality metal parts with a consistent and uniform wall thickness, making it suitable for various applications. Both methods have their strengths based on the types of parts they are most suitable for, and the choice between the two depends on the specific requirements of the project.

The Difference Between Sand Cast And Centrifugal Cast Bushes

Understanding Sand Casting

What is sand casting?

Sand casting is a traditional method for producing bronze bearings. It involves creating a mold from a mixture of sand and a binding agent.

Process of sand casting

  • Creating the mold: A pattern of the desired part is made and then pressed into a mixture of sand and binder.
  • Pouring molten metal: Once the mold is ready, molten bronze is poured into the cavity.
  • Cooling and solidification: The bronze cools and solidifies within the mold.
  • Removal and finishing: After cooling, the casting is removed from the mold and finished to achieve the desired dimensions and surface quality.

Advantages and disadvantages

  • Advantages:
    • Low tooling costs
    • Suitable for complex shapes
    • Can produce large components
  • Disadvantages:
    • Limited dimensional accuracy
    • Rough surface finish
    • Porosity issues

Insights into Centrifugal Cast Bushes

What is centrifugal casting?

Centrifugal casting is a method that utilizes centrifugal force to distribute molten metal into a mold cavity.

Process of centrifugal casting

  • Spinning the mold: The mold is rotated at high speeds around its axis.
  • Pouring molten metal: Molten bronze is poured into the spinning mold.
  • Centrifugal force distribution: The centrifugal force pushes the molten metal towards the mold walls, resulting in uniform material distribution.
  • Cooling and solidification: As the mold continues to spin, the bronze cools and solidifies.
  • Removal and finishing: Once solidified, the casting is removed from the mold and finished as required.

Advantages and disadvantages

  • Advantages:
    • Excellent material density and uniformity
    • Superior surface finish
    • Reduced porosity
  • Disadvantages:
    • Higher tooling costs
    • Limited to cylindrical shapes
    • Smaller size range

Key Differences Between Sand Cast and Centrifugal Cast Bronze Bearings

Material distribution

In sand casting, material distribution may not be uniform due to the manual pouring process, resulting in inconsistencies. Conversely, centrifugal casting ensures excellent material density and uniformity due to the centrifugal force.

Surface finish

Sand cast bronze bearings typically have a rough surface finish, requiring additional machining or finishing processes. Centrifugal casting offers a superior surface finish without the need for extensive post-processing.

Size limitations

Sand casting can accommodate larger and more complex shapes, making it suitable for a broader range of sizes. On the other hand, centrifugal casting is limited to cylindrical shapes and smaller components.


Sand casting generally has lower tooling costs and is more cost-effective for large volume production runs. Centrifugal casting involves higher tooling costs but offers better quality and consistency, making it economical for specialized applications.

Applications and Industries

Bronze bearings produced through sand casting are commonly used in heavy machinery, automotive applications, and industrial equipment where cost-effectiveness is crucial. Centrifugal cast bronze bearings find applications in high-performance machinery, aerospace, and marine industries where superior quality and reliability are paramount.

How To Make Your Graphite Oilless Bushing More Self-Lubricating2024-04-12T05:06:10+00:00

How To Make Your Graphite Oilless Bushing More Self-Lubricating?

In the realm of machinery and industrial applications, the quest for optimal performance often leads to innovations in materials and design. One such innovation gaining prominence is the use of graphite oilless bushings. These components play a crucial role in ensuring smooth operations, but the key lies in harnessing their self-lubricating capabilities effectively.

1. Choosing the Right Copper Material for Graphite Oilless Bushing

When it comes to self-lubricating bushings, not all copper materials are created equal. High-strength brass, aluminum bronze, and tin bronze are among the top choices. Each comes with its unique advantages and considerations. High-strength brass offers a cost-effective solution, while aluminum bronze and tin bronze provide enhanced performance at a higher cost.

Oil-Free Brass Bushings Used In Rolling Mills

High Strength Brass Bushing Material: ZCuZn25Al6Fe3Mn3 Alloy

The chemical formula for high-strength brass is ZCuZn25Al6Fe3Mn3, with approximately 65% copper and 24% zinc. The presence of zinc significantly enhances the alloy’s strength, hardness, and corrosion resistance.

Pressure Processing Characteristics:

High strength brass exhibits excellent plasticity, allowing it to withstand both cold and hot processing. However, during hot processing, such as forging, it may experience intermediate temperature brittleness. The specific temperature range for this phenomenon varies with the zinc content and typically occurs between 200 to 700°C. Therefore, it is advisable to maintain processing temperatures above 700°C to avoid this issue.

Mechanical Properties:

The mechanical properties of high strength brass vary with the zinc content. In the case of α-brass, as the zinc content increases, both the tensile strength (σb) and elongation (δ) continually rise. However, copper-zinc alloys with zinc content exceeding 45% have limited practical value. The standard high strength brass boasts a Brinell hardness (HB) greater than 200, compressive strength exceeding 600 MPa, and elongation greater than 10%.

Application Areas:

Due to its remarkable wear resistance, high strength, large hardness, and strong resistance to chemical corrosion, high strength brass finds applications in diverse industries. Common uses include the manufacturing of sheets, bars, rods, pipes, and cast components. Its machining properties make it a preferred material for various industrial applications where durability and reliability are crucial.

2. Selecting the Ideal Graphite Material

Contrary to popular belief, the graphite used in self-lubricating bushings is not “purely natural.” It is a product of meticulous craftsmanship involving the combination of graphite powder, polytetrafluoroethylene (PTFE) powder, and talc powder. The fineness of the graphite powder and the density of the pressing process significantly impact the final product’s performance.

3.Design Considerations for Maximum Lubrication

The design of self-lubricating bushings involves a delicate balance. The size of the graphite should match the inner diameter of the bushing, ensuring an efficient lubrication process. Additionally, the optimal percentage of graphite coverage on the inner surface is around 20%, striking the perfect equilibrium between lubrication and structural integrity.

4.Arrangement of Graphite for Different Motion Types

It’s a common misconception that a few drilled holes in the copper bushing filled with graphite will automatically result in self-lubrication. The reality is more nuanced, and the arrangement of graphite depends on the type of motion the bushing will experience. Rotational and linear movements require distinct graphite layouts, and one-size-fits-all solutions seldom live up to expectations.

Environmental Impact and Sustainability

Beyond the immediate benefits of self-lubricating bushings, it’s crucial to examine their broader impact on the environment. Reduced friction leads to lower energy consumption, aligning with the global push for sustainable manufacturing practices. Choosing self-lubricating solutions isn’t just a practical decision; it’s a step towards a greener, more sustainable future.

Which Bronze Bushing Materials And Shapes Are Available?2024-04-12T04:58:59+00:00

Which Self-Lubricating Bronze Bushing Materials and Shapes Are Available?


In the world of machinery and engineering, self-lubricating bronze bushings play a pivotal role. These unassuming components ensure that mechanical systems run smoothly by reducing friction, wear, and the need for constant maintenance. If you’re in the market for self-lubricating bronze bushings, this article is your comprehensive guide to the materials and shapes available.

Understanding Self-Lubricating Bronze Bushings

Before we dive into the specifics, let’s get a grasp of what self-lubricating bronze bushings are. These are crucial components used in various industries, from automotive to heavy machinery. They are designed to provide a low-friction interface between two moving parts, reducing wear and extending the lifespan of the machinery.

types of wear sleeves. BRONZED BUSHING

Materials of Self-Lubricating Bronze Bushings

1. Bronze Alloys

Bronze bushings are primarily made from various bronze alloys, each with its unique set of properties. Some of the common bronze alloys used for these bushings include:

a. Phosphor Bronze

Phosphor bronze is known for its excellent wear resistance, making it ideal for heavy-load applications.

b. Aluminum Bronze

Aluminum bronze bushings are corrosion-resistant and suitable for applications in harsh environments.

c. Manganese Bronze

Manganese bronze offers high tensile strength, making it perfect for applications where durability is essential.

Bronze Bushing Alloys Specifications

C90300B271 B505 B584J461, J462 (formerly 620)C-15345,ALLOY 8
C90500B271 B505 B22 B584J461, J462 (formerly 62)4845QQ-C-390
C90700B505J461, J462 (formerly 65)QQ-C-390
C92200B271 B505 B61 B584J461, J462 (formerly 622)C-15345,ALLOY 9 B-16541QQ-C-390
C92300B271 B505 B584J461, J462 (formerly 621)C-15345,ALLOY 10 B-16540QQ-C-390
C92700B271 B505J461, J462 (formerly 63)QQ-C-390
C93200B271 B505 B22 B584J461, J462 (formerly 660)C-15.12, ALLOY 12QQ-C-390
C93400B505C-15345,ALLOY 11 C-22087 C-22229QQ-C-390
C93500B271 B505 B584J461, J462 (formerly 66)QQ-C-390
C93700B271 B505 B22 B584J461, J462 792 (formerly 64)4827 4842QQ-C-390
C93800B271 B505 B66 B584J461, J462 (formerly 67)QQ-C-390
C94300B271 B505 B66 B584J461, J4624840QQ-C-390
C95300 C95300HTB271 B505 B148J461, J462 (formerly 688)C-11866, COMP.22QQ-C-390
C95400 C95400HTB271 B505 B148J461, J4624870 4871 4872 4873C-15345,ALLOY 13 C-11866,COMP.23QQ-C-390
C95500 C95500HTB271 B505 B148J461, J462C-15345,ALLOY 14 C-22087 B-21230 C-22229QQ-C-390
C86300B271 B505 B22 B584B271 B505 B22 B5844862C-15345,ALLOY 6 C-22087 C-11866,COMP 21 C-22229QQ-C-390
C86400B271 B505 B584QQ-C-390

2. Solid Lubricants

To make bronze bushings self-lubricating, manufacturers often embed solid lubricants into the bronze material. These solid lubricants can include:

a. Graphite

Graphite is a popular choice, known for its self-lubricating properties and ability to withstand high temperatures.

b. PTFE (Polytetrafluoroethylene)

PTFE is widely used for its low friction and non-stick properties, making it an excellent choice for applications with sensitive components.

3. Composite Materials

Some self-lubricating bronze bushings are made from composite materials, combining bronze with other substances to enhance performance. These materials offer a unique blend of characteristics tailored to specific applications.

Shapes of Self-Lubricating Bronze Bushings

1. Cylindrical Bushings

Cylindrical bronze bushings are the most common shape and are used in a wide range of applications. They are simple to install and provide excellent load-bearing capabilities.

2. Flanged Bushings

Flanged bronze bushings come with a flange, which acts as a thrust washer and simplifies the assembly process. These are often used in applications where axial movement is required.

3. Thrust Washers

Thrust washers are flat, disc-shaped bronze bushings designed to handle axial loads. They are often found in automotive and industrial applications.

4. Spherical Bushings

Spherical bronze bushings are designed to accommodate angular misalignment and are commonly used in linkages and control systems.

5. Custom Shapes

Manufacturers can produce custom shapes to meet specific design requirements. These can vary widely and are often tailored to unique applications.

Applications of Self-Lubricating Bronze Bushings

Self-lubricating bronze bushings find applications in various industries, including:

  • Automotive
  • Aerospace
  • Marine
  • Agriculture
  • Construction
  • Industrial machinery

These bushings are versatile and can be used wherever reduced friction and extended component life are essential.


Self-lubricating bronze bushings are indispensable in the world of machinery and engineering. With a wide range of materials and shapes available, they can be tailored to suit specific needs. Whether you’re working in the automotive, aerospace, or industrial sector, self-lubricating bronze bushings have a role to play in ensuring smooth operations.


  1. How do self-lubricating bronze bushings reduce maintenance costs? Self-lubricating bronze bushings reduce maintenance costs by minimizing friction and wear, thereby extending the lifespan of components and reducing the need for frequent maintenance.
  2. Can self-lubricating bronze bushings withstand extreme temperatures? Yes, some self-lubricating bronze bushings are designed to withstand high temperatures, thanks to the use of materials like graphite and PTFE.
  3. What are the advantages of using composite materials in self-lubricating bronze bushings? Composite materials offer a tailored blend of characteristics, allowing manufacturers to optimize performance for specific applications.
  4. Where are spherical bronze bushings commonly used? Spherical bronze bushings are often used in linkages and control systems where angular misalignment needs to be accommodated.
  5. Are custom-shaped bronze bushings expensive to manufacture? The cost of custom-shaped bronze bushings can vary depending on the complexity of the design and the materials used, but they are often a worthwhile investment for specialized applications.
Why Use Graphite Bronze Bushings?2024-04-12T04:58:53+00:00

Graphite bronze bushings, also known as graphite-filled bronze bushings, are a type of plain bearing or bushing used in various mechanical applications. They are designed to reduce friction between moving parts and provide support for rotating or sliding shafts. These bushings are made by combining bronze, a metal alloy, with graphite, a lubricating material.

Here’s a breakdown of the key components of graphite bronze bushings:

Bronze Alloy: The base material of graphite bronze bushings is typically a bronze alloy. Bronze is known for its excellent strength, corrosion resistance, and wear resistance. It’s a popular choice for bushing applications because of its durability.

Graphite Lubrication: The unique feature of oilless bronze bushings is the inclusion of graphite within the bronze material. Graphite is a solid lubricant that reduces friction between the bushing and the shaft it supports. It’s also heat-resistant and self-lubricating, which extends the lifespan of the bushing and minimizes maintenance requirements.

Choose Your Material / Alloy

  • C93200 Bearing Bronze
  • C95400 Aluminum Bronze
  • C86300 Manganese Bronze

graphite bronze bushings

Bronze Graphite bushings, also known as self-lubricating bronze bushings, are used in various applications for several reasons:

  • Self-Lubrication: Graphite bronze bushings have solid lubricant (graphite) embedded within the bronze material. This means they can operate effectively without the need for additional external lubrication. This makes them a reliable choice in applications where continuous lubrication is difficult or impractical.
  • Low Friction: The presence of graphite reduces friction, allowing for smooth, low-wear operation. This can result in reduced maintenance and longer service life for machinery and equipment.
  • High Load Capacity: Bronze is a strong material, and when combined with the self-lubricating properties of graphite, these bushings can handle heavy loads and provide excellent support in applications where high loads are a concern.
  • Resistance to Corrosion: Bronze is naturally resistant to corrosion, making graphite oilless bushings suitable for use in various environments, including those with exposure to moisture, chemicals, or other corrosive substances.
  • Shock Absorption: These bushings are effective at dampening vibrations and reducing shock in mechanical systems. This can contribute to smoother and quieter equipment operation.
  • Low Maintenance: The self-lubricating properties of oilless bronze bushings mean they require less maintenance compared to traditional bushings that need periodic lubrication. This can result in cost savings and less downtime.
  • Versatility: Graphite bronze bushings can be used in a wide range of applications, including automotive, industrial machinery, agricultural equipment, and more. They are available in various shapes and sizes to suit different needs.
  • Cost-Effective: While initially, they might be more expensive than some other bushing materials, their long service life and reduced maintenance requirements can make them cost-effective in the long run.

In summary, graphite bronze bushes are chosen for their ability to provide self-lubrication, low friction, high load capacity, resistance to corrosion, shock absorption, and versatility. These qualities make them a dependable choice for various applications, particularly when minimizing maintenance and ensuring smooth, long-lasting equipment operation is essential.

Application Of Graphite Oilless Bronze Bushings

Graphite bronze bushings, also known as self-lubricating bronze bushings, are versatile components used in various applications across different industries. These bushings are made of bronze and impregnated with graphite to provide lubrication and reduce friction. Here are some common applications of bronze graphite bushings:

  1. Industrial Machinery: Graphite bronze bushings are frequently used in industrial machinery, such as conveyor systems, printing machines, and packaging equipment. They provide low-friction, self-lubricating support to rotating shafts and components, reducing maintenance needs.
  2. Automotive Industry: In the automotive sector, these bushings find use in suspension systems, steering linkages, and transmission components. Their self-lubricating properties contribute to longer service life and quieter operation.
  3. Agricultural Equipment: Farm machinery, like tractors and harvesters, relies on bronze graphite bushings in pivot points and linkages. These bushings can withstand heavy loads and harsh environmental conditions.
  4. Construction Equipment: Graphite bronze bushings are used in construction equipment, such as cranes, bulldozers, and excavators, to provide wear-resistant and low-maintenance solutions for critical pivot points.
  5. Marine Applications: In the marine industry, they are employed in ship propulsion systems, steering mechanisms, and winches. Graphite bronze bearings are highly corrosion-resistant, making them ideal for saltwater environments.
  6. Hydraulic Cylinders: These bushings are used in hydraulic cylinders to support piston rods and reduce friction during movement. This application benefits from their ability to handle high pressure and reduce the need for external lubrication.
  7. Aerospace: In the aerospace sector, where lightweight and high-performance materials are crucial, graphite bronze bushings can be found in various components, such as landing gear and control systems.
  8. Railway Systems: Graphite bronze bushings are used in railway applications for suspension components, couplers, and other moving parts to ensure smooth operation and reduce maintenance requirements.
  9. Renewable Energy: Wind turbines and solar tracking systems use bronze graphite bushings to support rotating components and minimize friction, contributing to improved energy efficiency.
  10. Food and Beverage Industry: Graphite bronze bushes are often employed in food processing equipment due to their ability to work in hygienic environments with minimal lubrication requirements.
  11. Textile Machinery: Textile machines, like looms and spinning equipment, use these bushings to reduce friction and wear in various moving parts, resulting in increased productivity and reduced downtime.
  12. Oil and Gas Industry: They find application in oil and gas exploration and drilling equipment where they can withstand extreme conditions and reduce the need for constant maintenance in remote locations.
  13. Medical Devices: In certain medical devices and laboratory equipment, graphite bushings are used to minimize friction and wear in precision components.

Graphite bronze bushings are valued for their ability to reduce maintenance, extend component life, and operate effectively in various environmental conditions. Their self-lubricating properties make them an essential component in many industries where reliable and low-maintenance solutions are needed.

Tips for Selecting the Perfect Graphite-Impregnated Bearing for Your Requirements

  1. Evaluate Load Capacity: To ensure your bearing can handle the task, it’s vital to determine the maximum weight that will be exerted on it. This will guide you in selecting a bearing capable of supporting the anticipated load.
  2. Mind the Speed: Graphite-impregnated bearings are engineered for high-speed applications. If your intended use involves low-speed operations, this type of bearing may not be the most suitable choice for your needs.
  3. Opt for the Right Material: The choice of bearing material is pivotal, impacting both its strength and durability. Select a material that aligns with the specific demands of your application to ensure optimal performance and longevity.
  4. Consider the Environment: While graphite-impregnated bearings are inherently resistant to corrosion, it’s essential to take your operating environment into account. Evaluate potential exposure to chemicals or other corrosive substances to determine if these bearings are well-suited to your conditions.
  5. Determine the Correct Size: Bearings are available in various sizes, so it’s imperative to choose one that perfectly matches your application. Selecting the right size ensures that the bearing will function efficiently and effectively.
What are Thrust Washer Bearings?2024-05-23T05:20:16+00:00

What are Thrust Washer Bearings?

Thrust washer bearings, also known simply as thrust bearings, are a crucial component in various mechanical systems. These bearings play a pivotal role in supporting axial loads, ensuring smooth rotational motion, and minimizing friction within machinery. In this article, we will explore the different aspects of thrust washer, their types, applications, advantages, installation, maintenance, and more. Let’s dive in!

Types of Thrust Washer Bearings

Flat Washers

Flat thrust washers are the most common type, consisting of flat, washer-like components that help distribute axial loads evenly. They are widely used in automotive transmissions, gearboxes, and other industrial applications.

Spherical Washers

Spherical thrust washer bearings, on the other hand, are designed to accommodate misalignment and minor angular deviations. They are often used in applications where alignment is not perfect.

Needle Roller Thrust Bearings

Needle roller thrust bearings have small cylindrical rollers, making them suitable for high-speed, high-load applications. You’ll find them in gear pumps, small engines, and certain aerospace components.

Tapered Roller Thrust Bearings

Tapered roller thrust bearings are ideal for applications requiring high thrust capacity. They are commonly used in heavy machinery, such as construction equipment and marine propulsion systems.

Thrust Washer Bearings supplier

Oilless Thrust Washer Material

Oilless thrust washer, also known as self-lubricating thrust washer bearings, are designed to operate without the need for external lubrication. They are commonly used in applications where traditional oil or grease lubrication is impractical or undesirable. These bearings are made from various materials that provide inherent lubrication properties. Here are some common materials used for oilless thrust washer:

  1. Bronze Bearings: Bronze bearings are often impregnated with lubricating materials like graphite or PTFE (polytetrafluoroethylene). This impregnation allows the bearing to operate effectively without additional lubrication. These bearings are known for their durability and self-lubricating properties.
  2. PTFE (Polytetrafluoroethylene) Bearings: PTFE, also known as Teflon, is a low-friction material with excellent self-lubricating properties. PTFE thrust washers are used in applications where resistance to chemicals and high temperatures is required.
  3. Composite Bearings: Composite materials, such as PTFE-based composites or reinforced plastics, are often used to create oilless thrust washer. These materials combine the benefits of PTFE’s low friction and self-lubricating properties with the strength and durability of other materials.
  4. Graphite Bearings: Bearings made with graphite are self-lubricating and can withstand high-temperature environments. They are often used in high-temperature applications where traditional lubricants would break down.
  5. Plastic Bearings: Some plastic materials, such as acetal and nylon, have self-lubricating properties and can be used as oilless thrust washer bearings. These materials are often chosen for their resistance to corrosion and their ability to run dry without significant wear.

The choice of material for your oilless thrust washer bearing will depend on the specific requirements of your application, including factors like load capacity, temperature, and environmental conditions. It’s important to select the material that best suits the needs of your particular use case.

Exploring Powdered Metal Bronze SAE841 Bearings and SAE660 Casting Thrust Washers:

Powdered Metal Bronze SAE841 Thrust Washers – Inch and Metric

Powdered metal bronze SAE841 thrust washers are indispensable components used in the oil industry. These bearings are manufactured from a combination of copper (87-90%), tin (8-9%), carbon, and other elements. They are specially designed to provide a connected reservoir for oil.

One of the most distinctive features of sinter thrust washers is their self-lubricating nature. During operation, oil rises to the surface for lubrication, and when stationary, the thrust washer naturally replenishes the oil layer. This self-lubrication mechanism ensures efficient operation, making sinter bearings suitable for medium-speed heavy loads or high-speed light loads, with a maximum Pv rating of 50,000.

Powdered metal bronze SAE841 thrust washers are available in both inch and metric sizes, providing versatility for a wide range of applications.

Cast Bronze SAE660 Thrust Washers – Inch

In contrast to the sintered bearings, cast bronze SAE660 thrust washers are composed of copper (83%), tin (7%), lead (7%), and zinc (3%). These bearings offer remarkable durability and have a dense grain structure, ensuring a long service life.

casting thrust washers are characterized by their exceptional hardness, strength, and wear resistance, as well as excellent friction-resistant properties. With a tensile strength of 35,000 psi, a yield strength of 20,000 psi, and a Brinell hardness of 72, they are well-suited for medium-speed or lightly loaded heavy-duty applications.

Applications of Bronze Thrust Washer

Thrust washer bearings find their place in a wide range of industries:

Automotive Industry

In the automotive sector, these bearings are found in transmissions, engines, and drive axles, ensuring the efficient transfer of power.

Industrial Machinery

Industrial machines, including conveyor systems, paper mills, and hydraulic pumps, rely on thrust bearings for optimal performance.


Aerospace applications, such as aircraft landing gear systems and control surfaces, use thrust washer bearings to handle axial loads and maintain stability.

Marine Applications

In marine environments, where equipment faces the harsh challenges of saltwater and heavy loads, bronze thrust washer are essential for smooth operation.

Advantages of Thrust Washer Bearings

High Load-Carrying Capacity

Thrust washer bearings are designed to handle significant axial loads, making them suitable for heavy-duty applications.

Minimal Friction

These bearings reduce friction, resulting in improved efficiency and reduced wear and tear on machinery components.


Thrust washer bearings are built to last, even in demanding environments, providing long-term reliability.

Reduced Noise and Vibration

Their design minimizes noise and vibration, enhancing user comfort and equipment performance.

Installation and Maintenance

Proper installation and maintenance are critical for the longevity of thrust washers:

Proper Installation

Correct installation ensures that the bearings function optimally. This includes appropriate alignment and fastening.


Lubrication is vital to prevent excessive friction and wear. Using the right lubricant is key to extending the life of these bearings.

Common Maintenance Practices

Regular inspection, cleaning, and replacement of worn-out bearings are essential for reliable operation.

Common Issues and Troubleshooting

Despite their durability, thrust washer bearings may face issues, including:

Wear and Tear

Over time, these bearings may show signs of wear and tear. Regular maintenance helps identify and address these issues promptly.


Improper installation or damage can lead to misalignment, causing premature wear. Realigning the bearings is crucial.


Excessive axial loads can lead to overloading, potentially damaging the bearings. Ensuring that equipment operates within specified limits is vital.

Choosing the Right Thrust Washer Bearing

When selecting thrust washer bearings, consider various factors, including load capacity, operating conditions, and industry-specific requirements. Different applications may demand specific designs and materials to ensure optimal performance.

Innovations in Thrust Washer Bushings

Advancements in bearing technology have led to innovations in thrust washer bearings, with a focus on improving efficiency, durability, and environmental impact. New materials and design concepts are continually emerging, shaping the future of this essential component.

Comparison with Other Bearing Types

It’s essential to understand how thrust washer bearings compare with other bearing types, such as radial bearings and ball bearings, to make informed choices for your applications.

Environmental Impact

Sustainability is a growing concern. Thrust washers are evolving to become more eco-friendly, with manufacturers exploring options to reduce their environmental footprint.


In conclusion, thrust washer bearings are unsung heroes of the mechanical world. These bearings support axial loads, minimize friction, and ensure smooth operation in a wide range of applications. By selecting the right type, maintaining them properly, and considering environmental impact, you can ensure their longevity and efficiency.

Can Oil-Free Brass Bushings Be Used In Rolling Mills?2024-04-12T04:58:38+00:00

Can Oil-Free Brass Bushings Be Used In Rolling Mills?

In the world of manufacturing and industrial machinery, the choice of components is critical to the efficiency and longevity of the equipment. One such component that plays a pivotal role in rolling mills is bushings. Traditionally, oil-lubricated bushings have been the standard choice, but with advancements in technology, oilless brass bushings have gained attention. In this article, we will explore the possibility of using oil-free brass bushings in rolling mills.


Rolling mills are essential in the production of various metal products. They are used to reduce the thickness of metal sheets or shapes, making them a fundamental part of the metalworking industry. Bushings, although often overlooked, are crucial components that facilitate the smooth operation of rolling mills. They provide support and reduce friction between moving parts.

What Are Oil-Free Brass Bushings?

Oil-free self-lubricating brass bushings, as the name suggests, are self-lubricating components that eliminate the need for external oil or grease. These bushings are made from high-quality brass and are embedded with solid lubricants, ensuring a consistent and low-friction operation.

Oil-Free Brass Bushings Used In Rolling Mills

The Function of Bushings in Rolling Mills

In rolling mills, bushings are primarily used to support the rolls and spindles, which are constantly in motion. They help distribute the load evenly and reduce friction, thus extending the life of rolling mill equipment. The traditional choice has been oil-lubricated bushings, but oilless brass bushings are changing the game.

The Traditional Use of Oil-Lubricated Bushings

For many years, oil-lubricated bushings have been the industry standard. They require regular maintenance, including lubrication and monitoring of oil levels. While effective, they come with some drawbacks, including the risk of oil leakage and environmental concerns.

Advantages of Oil-Free Brass Bushings

Oil-free brass bearings offer several advantages that make them an attractive option for rolling mills:

  1. Maintenance-Free: These bushings require minimal maintenance, reducing downtime in rolling mill operations.
  2. Low Friction: oilless provide consistent and low friction, leading to energy savings.
  3. Environmental Friendly: They eliminate the risk of oil leakage, making them environmentally friendly.
  4. Extended Lifespan: The self-lubricating properties of these bushings contribute to their longevity.

Are Oil-Free Brass Bushings Suitable for Rolling Mills?

The suitability of oil-free brass bushings for rolling mills depends on various factors. Manufacturers must consider the load, speed, and operating conditions when making the switch. Oil-free brass bushings is an excellent choice for many rolling mill applications, but a detailed analysis is crucial.

Factors to Consider When Using Oilless Brass Bushings

  1. Load Capacity: Ensure that the bushings can handle the specific load of your rolling mill.
  2. Operating Temperature: Consider the temperature variations within the mill and choose bushings that can withstand them.
  3. Speed: Different rolling mills operate at different speeds; select bushings accordingly.

Case Studies: Successful Implementations

Several rolling mills have successfully implemented oil-free brass bushings. These case studies highlight the positive impact on maintenance, efficiency, and overall operations. Manufacturers have reported cost savings and increased productivity after making the transition.

Challenges and Limitations

While self lubricating brass bushings offer numerous benefits, they are not without challenges. High initial costs and the need for precise installation can be potential barriers for some manufacturers. Additionally, in extreme operating conditions, oil-lubricated bushings may still be preferred.

Maintenance and Longevity of Oilless Brass Bushings

To maximize the benefits of oil-free brass bushings, regular maintenance is essential. This includes inspecting the bushings for wear and tear, ensuring they remain properly lubricated, and replacing them when necessary. With the right care, these bushings can provide long-lasting service.

Environmental Benefits of Oil-Free Brass Bushings

One of the significant advantages of oil-free brass bushes is their environmental friendliness. They eliminate the risk of oil contamination and contribute to a cleaner and safer working environment. In an era where sustainability is a growing concern, this is a notable advantage.


In conclusion, oil-free brass bushings offer a compelling alternative to traditional oil-lubricated bushings in rolling mills. Their low maintenance requirements, environmental benefits, and enhanced efficiency make them a viable choice for manufacturers seeking to improve their operations. However, a detailed analysis of specific application requirements is essential before making the switch.

Are Custom-Machined Bronze Bushings Available?2024-04-12T04:58:26+00:00

Are Custom-Machined Bronze Bushings Available?

Yes, Bronzeoilless.com custom-machined bronze bushings are available. Bronze bushings are commonly used in various applications to provide a low-friction and durable bearing surface. If you require specific dimensions, materials, or designs that aren’t readily available as standard off-the-shelf products, you can have bronze bushings custom-machined to meet your unique requirements.

Custom Machined Bronze Bushings: Tailored Solutions for Your Needs

When it comes to ensuring the smooth operation of machinery and equipment, every component plays a crucial role. Custom-machined bronze bushings are one such component that can make a significant difference in the performance and longevity of your machinery. we offer tailored solutions that meet the unique requirements of our clients.

The Importance of Customization

Off-the-shelf components are convenient for many applications, but they may not always provide the best fit for your specific machinery or equipment. Custom machined bronze bushings are engineered to exact specifications, ensuring a precise fit and optimal performance. Here are some reasons why customization matters:

  1.  Precision Fit:
    Custom bronze bushings are machined to match the exact dimensions and specifications of your machinery. This precision fit reduces the risk of wear, tear, and unwanted vibrations, ultimately extending the lifespan of your equipment.
  2. Enhanced Performance:
    Each application is unique, and off-the-shelf solutions may not provide the required performance under specific conditions. Customized bronze bushings are designed to perform optimally, even in challenging environments.
  3. Reduced Maintenance:
    With a custom solution, you can expect lower maintenance costs and downtime. Properly fitted bronze bushings reduce the need for frequent replacements or repairs.

Custom Machined Bronze Bushings

Our Commitment to Customization

At Bronzeoilless.com, we are committed to providing tailored solutions that meet the individual needs of our clients. Our custom machined bronze bushings are manufactured with the following key features in mind:

  • Material Selection:
    We offer a wide range of bronze materials to choose from, such as aluminum bronze, phosphor bronze, and manganese bronze, each with its unique set of properties. We help you select the material that best suits your application.
  • Precision Machining:
    Our state-of-the-art machining facilities and experienced technicians ensure that each bronze bushing is machined to perfection, meeting your exact specifications.
  • Lubrication and Coating:
    To further enhance the performance and longevity of our custom bronze bushings, we offer various lubrication and coating options tailored to your specific application.

Custom Products and Bulk Orders

Whether you need a single custom machined bronze bushing or a bulk order to meet the demands of a large-scale operation, we have the capabilities to accommodate your requirements. Our commitment to quality and precision remains consistent, whether it’s a small, custom order or a large-scale production run.

Why Choose Bronzeoilless.com?
Choosing the right supplier for custom machined bronze bushings is a critical decision, and here’s why clients trust us:

  1. Expertise:
    With years of experience in the industry, we have a deep understanding of various applications and can provide expert guidance to select the best bronze material and design for your specific needs.
  2. Quality Assurance:
    Quality is at the heart of what we do. We implement stringent quality control measures throughout the manufacturing process to ensure that our products meet or exceed industry standards.
  3. Timely Delivery:
    We understand the importance of timely deliveries. Our streamlined production process allows us to deliver on time, ensuring minimal disruption to your operations.
  4. Customization Capabilities:
    Our dedication to customization means that you get precisely what you need. We work closely with you to design and deliver custom bronze bushings that optimize the performance of your machinery.
  5. Competitive Pricing:
    Our commitment to offering the best value ensures that you receive high-quality custom products at competitive prices.

Custom machined bronze bushings from Bronzeoilless.com are the solution to your machinery and equipment needs. Contact us today to discuss your requirements and experience the difference that precision and customization can make in your operations. We look forward to partnering with you to enhance the performance and reliability of your machinery.

Creating a custom machined bronze bushing involves several steps in the manufacturing process. Here’s an overview of the typical process:

  • Material Selection: Choose the appropriate type of bronze alloy for the specific application. Common choices include phosphor bronze, aluminum bronze, and manganese bronze. The choice of alloy will depend on factors like load-bearing capacity, corrosion resistance, and wear resistance.
  • Design: Create a detailed design for the bushing, including the dimensions, tolerances, and any special features required for the application. This can be done using computer-aided design (CAD) software.
  • Raw Material Acquisition: Procure the bronze material in the form of bars or tubes, depending on the design specifications. Ensure that the material meets the required standards and quality.
  • Cutting: Use a saw or cutting machine to cut the bronze material into rough blanks or billets, which are approximately the size and shape of the desired bushing.
  • Turning: Place the bronze billets in a lathe machine. This machine will rotate the workpiece while cutting tools shape the bronze to the precise dimensions and geometry specified in the design. Turning operations may include facing, grooving, and parting.
  • Boring: If necessary, bore a hole through the center of the bronze billet to create the inner diameter of the bushing. This can be done on the lathe or a dedicated boring machine.
  • Milling: Use a milling machine to create any flats, keyways, or other features on the outer surface of the bushing, as required by the design.
  • Drilling: If additional holes or lubrication channels are needed in the bushing, use a drilling machine to create them. These holes can help with lubrication and cooling.
  • Finishing: The machined bronze bushing may have rough surfaces or sharp edges. Finishing processes like sanding, grinding, or polishing are performed to achieve a smooth and precise finish.
  • Quality Control: Inspect the finished bronze bushing for dimensional accuracy, surface finish, and any defects. Ensure that it meets the specifications outlined in the design.
  • Surface Treatment: Depending on the application, the bronze bushing may undergo surface treatments such as heat treatment, plating, or coating to enhance its performance and durability.
  • Assembly: If the bushing is part of a larger assembly, it can be installed according to the assembly instructions. This may include pressing it into a housing or attaching it to a shaft.
  • Packaging and Shipping: Once the custom machined bronze bushings pass quality control, they are packaged for protection and shipped to the customer.
Are Oilless Bearings Used In Oil And Gas Production?2024-04-12T04:58:18+00:00

Are Oilless Bearings Used in Oil and Gas Production?

In the fast-paced world of oil and gas production, every component of machinery must perform reliably in harsh environments. Bearings are no exception, serving as crucial components in various equipment used in this industry. This article explores the use of oilless bearings in oil and gas production, their advantages, applications, challenges, and the future they hold in this dynamic sector.

The Importance of Bearings in Oil and Gas Production

Before delving into oilless bearings, let’s first understand the pivotal role of bearings in the oil and gas industry. Bearings are mechanical components that reduce friction between moving parts, enabling the smooth operation of machinery. In oil and gas production, machinery operates under extreme conditions, including high temperatures, heavy loads, and abrasive substances. Bearings are essential for ensuring the reliability and efficiency of equipment.

Types of Bearings Used in the Industry

In the oil and gas industry, a variety of bearings are employed to meet the specific requirements of different equipment. The two primary types of bearings used are roller bearings and sleeve bearings.

  • Roller Bearings: These bearings use cylindrical rollers to reduce friction. They are commonly found in applications with high radial loads, such as pumps and compressors.
  • Sleeve Bearings: Sleeve bearings, also known as journal bearings, use a plain cylindrical surface to support rotating shafts. They are often used in slower-moving applications, like turbines.

Oilless Bearings: An Overview

Oilless bearings, as the name suggests, operate without the need for traditional lubricants like oil or grease. They are self-lubricating and use materials like metal alloys or composites impregnated with solid lubricants to reduce friction between moving parts. This unique feature makes them a promising choice for the oil and gas industry.

Advantages of Using Oilless Bearings

Reduced Maintenance

One significant advantage of oilless bearings is their reduced maintenance requirements. Traditional bearings necessitate regular lubrication and maintenance to prevent wear and damage. In contrast, oilless bearings can operate for extended periods without the need for frequent maintenance, making them highly reliable in remote and inaccessible locations.

Enhanced Durability

Oilless bearings are known for their durability. They can withstand high loads, shock, and vibration, which are common in the oil and gas industry. This prolonged lifespan results in cost savings and increased operational efficiency.

Environmental Considerations

In today’s environmentally conscious world, the reduced need for lubricants in oilless bearings is a considerable advantage. This not only minimizes the risk of oil spills but also aligns with sustainability goals, making them a preferred choice in eco-sensitive locations.

Applications of Oilless Bearings in Oil and Gas Production

Oilless bearings have found applications in various aspects of oil and gas production, including:

  • Drilling Equipment: Oilless bearings are used in drilling machinery, where their self-lubricating properties help maintain drilling efficiency in harsh conditions.
  • Compressors and Pumps: These components require reliable, low-maintenance bearings to ensure uninterrupted operation. Oilless bearings are well-suited for this purpose.
  • Extraction Machinery: Bearings are crucial in the machinery used for oil and gas extraction, and oilless bearings offer superior performance and longevity in these applications.

Challenges and Limitations

While oilless bearings offer numerous benefits, they do face challenges in extreme conditions, such as high-temperature environments and extreme pressures. It is essential to assess the suitability of oilless bearings for specific applications carefully.

High Temperature Environments

Oilless bearings may struggle in exceptionally high-temperature settings. When operating near their upper temperature limits, their performance can deteriorate. In such cases, alternative bearing solutions may be required.

Extreme Pressures

In applications where bearings are subjected to extreme pressures, it’s crucial to evaluate whether oilless bearings can handle the load. Traditional bearings with oil or grease lubrication may be better suited for such conditions.

Maintenance and Care of Oilless Bearings

While oilless bearings require less maintenance than traditional bearings, they are not entirely maintenance-free. Regular inspections and cleaning are still necessary to ensure optimal performance and longevity. It’s essential to follow the manufacturer’s guidelines for maintenance and care.

The Future of Oilless Bearings in the Industry

The oil and gas industry is continually evolving, with an increasing focus on efficiency, safety, and environmental responsibility. Oilless bearings align with these goals and are likely to play a more prominent role in the industry’s future. As technology advances and materials improve, oilless bearings will become even more reliable and versatile.


In summary, oilless bearings are gaining traction in the oil and gas industry due to their reduced maintenance requirements, enhanced durability, and eco-friendly attributes. While they are not suitable for all applications, their use is expanding, contributing to more efficient and sustainable operations in this vital sector.

Frequently Asked Questions

What are oilless bearings?

Oilless bearings are self-lubricating bearings that operate without the need for traditional lubricants like oil or grease. They use materials impregnated with solid lubricants to reduce friction between moving parts.

How do oilless bearings work?

Oilless bearings work by using materials impregnated with solid lubricants, allowing them to self-lubricate and reduce friction between moving parts. This unique feature makes them suitable for applications with reduced maintenance requirements.

Are oilless bearings cost-effective?

Yes, oilless bearings are cost-effective in the long run due to their reduced maintenance needs and extended durability. They result in cost savings and increased operational efficiency.

Can oilless bearings withstand high temperatures?

Oilless bearings have limitations in high-temperature environments, and their performance may deteriorate near their upper temperature limits. It’s essential to consider the specific temperature requirements of the application.

Where can I find oilless bearings for oil and gas applications?

Oilless bearings suitable for oil and gas applications can be sourced from reputable manufacturers and suppliers specializing in industrial bearings. Be sure to choose a supplier with a proven track record in providing reliable solutions for the industry’s unique challenges.

Types Of Oilless Bushings2024-04-12T04:58:05+00:00

Discover the Types of Oilless Bushings for Optimal Performance

Our types of oilless bushings are made from high-quality materials and designed to withstand extreme temperatures, pressure, and friction. They are easy to install and require minimal maintenance, making them an ideal solution for a wide range of industrial applications. Our bushings offer reliable and long-lasting performance, ensuring your machinery operates at optimal efficiency.

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What Is Oilless Bushing?

In the world of mechanical engineering, bushings are essential components that reduce friction between moving parts. With the increasing demand for maintenance-free and eco-friendly solutions, oilless bushings have gained popularity in various industries.

An oilless bushing, also known as a self-lubricating bushing, is a type of bearing that does not require external lubrication. they are also known for their low coefficient of friction, high wear resistance, and long service life.

Materials For Oilless Bushings

Oilless bushings are typically made from three types of materials:

  1. Metal-polymer composites
  2. Solid polymer
  3. Metal (e.g., bronze, iron)

These materials possess self-lubricating properties, which help reduce friction and wear without the need for additional lubrication.

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C83600 bearing bronze

Types of Oilless Bushings

  • Metal-polymer composite bushings consist of a metal backing with a layer of polymer on the sliding surface. The polymer contains solid lubricant particles, which provide a low friction coefficient and wear resistance. These bushings are lightweight, compact, and suitable for applications with high loads and low speeds.
  • Solid polymer bushings are made entirely of a self-lubricating polymer material. They offer excellent wear resistance, low friction, and are resistant to chemicals and corrosion. These bushings are ideal for applications that require minimal maintenance and operate in harsh environments.
  • Bi-metal bushings have a steel or bronze backing and a sintered layer of a low-friction alloy, such as lead-bronze or aluminum-tin. These bushings offer high load capacity and excellent wear resistance. They are suitable for applications with moderate to high speeds and loads.
  • Wrapped bronze bushings are made of a bronze strip with diamond-shaped lubrication pockets or holes filled with solid lubricant. These bushings are known for their high load capacity, good wear resistance, and low maintenance requirements. They are often used in agricultural and construction equipment.

Key Applications Of Oilless Bushings

Oilless bushings are commonly used in a variety of industries, including:

  • Automotive Industry: Suspension systems, steering systems, and transmissions
  • Aerospace Industry: Landing gear components, actuators, and flight control systems
  • Industrial Machinery: Pumps, compressors, and textile machinery

“We offer sleeve, flanged, thrust, and linear bushings. Each type is designed to meet specific performance requirements and is suitable for different loads and speeds.”

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Your Bushing Expert flanged bushing

Importance of Oilless Bushings in Machinery

Oil-free bushings present numerous advantages over traditional lubricated counterparts, including their simplistic structure, ability to withstand extreme temperatures, and frequent start-stop operations. They find ideal applications across various industries, spanning automotive, engineering, 3C electronics, and healthcare, enhancing the durability and reliability of automobiles, industrial robots, wind turbines, solar tracking systems, and more.

Widely utilized in aerospace, automotive, construction, medical, and manufacturing sectors, these bushings offer multifaceted benefits. By eliminating the need for external lubrication, they reduce maintenance costs, save time, address environmental concerns, and maintain cleanliness in work areas. Moreover, oil-free bushings operate silently, mitigating noise pollution within the working environment.

Materials For Oilless Bushings

Various types of oil-free bushings are available, including bronze, brass, plastic, steel, and porous metal materials. Each type offers unique properties suited to specific applications. For example, bronze bushings are ideal for heavy loads at moderate speeds or light loads at high speeds, while brass bushings excel in low-load, high-speed applications. Plastic bushings provide excellent chemical resistance, low friction coefficients, and good wear resistance. Steel bearings withstand high loads and have prolonged service life in high-speed, high-load applications. Porous metal materials, produced through powder metallurgy techniques, boast excellent lubricating properties.

Oil-free bushings offer several advantages over traditional lubricated counterparts. They eliminate the need for external lubrication, reducing maintenance requirements and mitigating risks associated with inadequate lubrication. Additionally, they eliminate the need for continuous lubrication devices, reducing installation and operational costs. Environmentally friendly, these bushings eliminate the need for oil disposal and perform exceptionally well in extreme temperature ranges from -200°C to 600°C. Moreover, they reduce material requirements, as lower shaft hardness requirements diminish the need for quenching, streamlining the production of associated components.

Your Bushing Expert straight oilless bearing
grooved bronze bushings

Types of Oilless Bushings

When choosing oil-free bushings, consider these factors for best results:

  1. Material: Determines load capacity, temperature resistance, and durability. Common materials are bronze, brass, and metal alloys like C95400, C93200, and C86300.
  2. Design: Ensure it suits your application. Straight bushings for linear movements, flange bushings for secure placement. Inner and outer diameters must match the mating shaft and housing.
  3. Load Capacity: Crucial for withstanding applied forces. High-load capacity bushings are made of robust materials with thicker walls.
  4. Temperature Range: Critical for extreme conditions. Some bushings operate from -200°C to 600°C.
  5. Lubrication: Self-lubricating, but type affects performance. For instance, graphite-plugged bushings are suitable for high-temperature and heavy-load applications.
  6. Maintenance: Consider maintenance needs. Some require no maintenance, while others need occasional cleaning or lubricant replacement.
  7. Cost: Initial cost vs. long-term benefits. Higher initial costs may offer longer service life and lower maintenance expenses.

Consider these factors to choose the right oil-free bushing for your application, ensuring top performance and durability.

Oilless Bushes VS Traditional Lubricated Bearings2024-03-27T05:27:13+00:00

Revolutionize Your Bearings with Oilless Bushes

Upgrade to the future of bearing technology with our Oilless Bushes. Experience the unparalleled performance, reduced maintenance, and a cleaner, more efficient solution for your bearings needs.

C83600 bearing bronze

Unparalleled Performance with Oilless Bushes

Upgrade Your Bearings

And Reduce Maintenance

Say goodbye to the hassle of lubrication and welcome the convenience of our advanced Oilless Bushes. Traditional lubricated bearings can be a headache to maintain, with the constant need for re-lubrication and the risk of leakage causing damage to surrounding components. Our Oilless Bushes offer a reliable, low-maintenance alternative, saving you both time and money in the long run. Upgrade your bearings today and enjoy the peace of mind that comes with a maintenance-free, high-performance solution.

Ditch Traditional Bearings for Our Advanced Oilless Bushes

Save time and money with a low-maintenance, high-performance alternative.

Oilless Bushes VS Traditional Lubricated Bearings
Oilless Bushes VS Traditional Lubricated Bearings, graphite bronze bushing

the difference between oilless bushes and Traditional Lubricated Bearing

Oilless Bushes

VS Traditional Lubricated Bearings

Oilless bushes: They are made from materials with built-in lubricants or solid polymer composites, which provide a low friction coefficient and reduce wear even without the presence of liquid lubricants. This makes them suitable for applications where it is difficult to maintain regular lubrication.

Traditional lubricated bearings: These bearings require a constant supply of lubricants, such as oil or grease, to minimize friction and wear. Inadequate lubrication can lead to higher friction, wear, and potentially bearing failure.

Upgrade your bearings for a smoother, more efficient experience.

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Comparing Oilless Bushings to Traditional Lubricated Bearings

An Array of Oilless Bushing Types

Oilless bushings serve both static and dynamic applications, offering friction reduction, shock absorption, wear protection, and load support. Diverse forms of oilless bushings cater to distinct needs. These include Bronze Bushings, Self-Lubricating Bushings, Steel Bushings, PTFE (Teflon) Bushings, and Graphite-Filled Plastic Bushings.

  • Bronze bushings consist of a bronze alloy infused with graphite plugs, providing self-lubrication and finding use in automotive and agricultural machinery. Self-Lubricating Bushings use metal materials coated with polymers for high-load scenarios. Steel Bushings feature anti-corrosion coatings and find use in harsh environments. PTFE Bushings, with their abrasion-resistant properties, are fit for electronic and aerospace systems. Graphite-Filled Plastic Bushings excel in heavy-load applications and vibration reduction.

Manganese Bronze Bushing supplier, Comparing Oilless Bushings to Traditional Lubricated Bearings

Oilless Bushes VS Traditional Lubricated Bearings, oilless bearing manufacturer

The Difference Between Oilless Bushes And Traditional Bearings, Which Is Better?:

Oilless bushes: They are well-suited for use in harsh environments, such as in the presence of dirt, dust, chemicals, and extreme temperatures. They can also function effectively in applications with oscillating or reciprocating motion, where traditional bearings might face challenges.
Traditional lubricated bearings: They perform better in high-speed and high-load applications, as their liquid lubricants can dissipate heat more effectively. However, they are more vulnerable to contamination, which can affect their performance.

Oilless bushes may have a higher initial cost compared to traditional bearings, as they are made from specialized materials and may involve more complex manufacturing processes.
Traditional lubricated bearings are typically less expensive initially, as they use more common materials and simpler manufacturing processes.

Due to their self-lubricating properties, oilless bushes generally require less maintenance than traditional bearings, making them ideal for applications where maintenance access is limited or costly.
Traditional lubricated bearings need Regular maintenance, such as lubrication and cleaning, necessary to ensure optimal performance and extend their service life.

Oilless bearings tend to have lower operating and maintenance costs, as they do not require regular lubrication or maintenance interventions. Additionally, their long service life can lead to cost savings in the long run.
The traditional bearings: They usually have higher operating and maintenance costs, as they require regular lubrication and maintenance, and may need more frequent replacement due to wear or contamination.

What Are Bushings On The Vehicle?2024-04-12T04:57:49+00:00

Part Of The Suspension And Steering Systems

Please contact us to discuss your specific requirements about what kind of vehicle bushings you are looking for. We will try to get back to you soon with the details of the auto spare parts you want to purchase.

  • Brass Bushing
  • Phosphor Bronze Bushing
  • Leaded Bronze
  • Aluminum Bronze
  • Manganese Bronze Bushing


Sales Growth



Spring Bush In The Suspension System

A spring bush is a type of bushing or bearing used in the suspension system of a vehicle. It is typically made of rubber, plastic, or metal, and is designed to absorb shock and reduce friction between moving parts.

  • the spring bushing is located between the spring and the suspension arm, even with bumps and uneven surfaces, the spring bush would directly reduce wear and noise, and improve the overall ride quality.

  • Spring bushings can wear out over time due to constant use and exposure to heat and weather conditions. It is important to have wear resistance spring bushings to maintain safety and performance.

King Pin Bush In The Steering System

A king pin bush is a type of bushing or bearing used in the steering system of some vehicles. It is typically made of metal and is designed to provide a low-friction interface between the king pin and the steering knuckle, allowing the steering to operate smoothly and accurately.

In vehicles with a solid front axle, the king pin is a large vertical pin that connects the axle to the steering knuckle. The king pin bushings are located at the top and bottom of the king pin, and allow the steering knuckle to pivot smoothly on the king pin as the vehicle turns.

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vehicle bushings

Vehicle Bushings Manufacturers

At Bronzeoilless.com, we produce vehicle bushings with precise dimensions using the appropriate materials.

Our high-quality bushings are composed of graded materials that meet international standards and possess desirable properties.

Through machining and grinding, we achieve smooth surface finishes on our bushings, resulting in outstanding bearing properties. Our products are manufactured to last longer and perform exceptionally well thanks to the combination of perfect materials and precise manufacturing.

Benefit Of Vehicle Bushings

Vehicle Bushings are an important component in vehicles for several reasons:

  • they help to improve the ride quality of the vehicle by reducing the impact of shock and vibration on the body.
  • bushings help to reduce wear and tear on other components in the vehicle. By reducing the impact of shock and vibration, bushings can help to extend the life of other components in the vehicle, such as suspension systems and engine mounts.
  • Finally, Vehicle bushings can provide a layer of cushioning between two metal components TO reduce the energy that is lost through friction.
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Bronze Spider Bushings, also known as Eccentric Bushings, might not steal the spotlight, but they are the unsung heroes of machinery. These small cylindrical components, often made of bronze or similar materials, might not look like much, but they play a critical role in various machines and equipment, especially in industries where precision and durability are paramount.


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oilless bearings and bushings, the type of what is bushing


    what is bushing2024-04-12T04:57:45+00:00

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    What Is Bushing? How Do They Work?

    A bushing is a type of bearing that facilitates movement between two parts while reducing friction. It is a hollow, single-component cylinder that reduces friction between a shaft and a bore, alters the size of the bore, and guides or supports a moving part. Bushings work through friction and force, and they can be made of various materials such as bronze or plastic. They can also be self-lubricating, which means they release lubricant to the bearing surface, reducing the need for external lubrication. Bushings are used in various applications, including suspension systems and industrial machinery.

      What Is Bushing: From Friction Reduction To Precision Alignment

      A bushing, also known as a plain bearing, is a cylindrical lining designed to reduce friction and wear inside a hole, often used as a casing for a shaft, pin, or hinge. It can also serve as an elastic bearing used for vibration isolation. Oilless bronze bushings, a type of bushing, offer advantages such as self-lubrication, higher load bearing capacity, resistance to vibration, and suitability for harsh conditions. They are commonly used in various industries due to their strength, durability, and performance. In contrast to ball bearings, which reduce friction through rolling components, bushings slide over shafts or rods, providing extremely low friction movement and are suitable for applications involving sliding rather than rolling. Additionally, air bushings, a type of bushing, are used to minimize friction between moving parts and eliminate misalignment inherent in mechanical systems, making them ideal for precision machining and other applications.

      Witness the wonders of bushings! Learn how these components work magic in reducing friction, ensuring precision alignment, and more. Click to unravel the versatile world of bushings!

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      what is bushing casting bronze bearing

      What Is The Purpose Of Using A Bushing In Mechanical Engineering

      In mechanical engineering, a bushing is a cylindrical lining designed to prevent wear to moving components. It is often used as a casing on machinery with rotating or sliding shafts, pins, or hinges. Bushings serve several purposes, including reducing friction and wear inside a hole, guiding or supporting moving parts, limiting the size of an opening, providing insulation and protection for conductors, and adapting to join pipes of different sizes. They are compact, lightweight, and possess high load-bearing capacities, making them versatile components in modern engineering. Bushings are used in various applications, such as in vehicle suspension systems, precision machining, and to minimize friction between moving parts in mechanical systems.

      Embark on a journey to the heart of rotational motion! Understand the critical role of bushings in bearings.

      How Do Oilless Bronze Bushings Compare To Other Types Of Bushings?

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      Oilless bronze bushings are a type of bearing that is oil-free and wear-free and used to reduce friction in a system. they offer several advantages compared to other types of bushings. They are known for their higher load-bearing capacity, reduced cost, increased resistance to vibration, suitability for harsh conditions, space-saving design, and self-lubrication. The use of bronze, a strong and naturally porous metal, contributes to its durability and longer lifespan compared to other metals like brass. Additionally, oilless bronze bushings can be made from materials with excellent corrosion resistance, making them ideal for use in humid or seawater applications. Their unique construction, which includes hardened steel races with a sintered bronze bearing material, offers superior load capacity and reduces the risk of seizure due to contamination.

      Furthermore, they can be used in a wide range of applications, including steel mills, machine tools, construction machinery, and offshore structures. Overall, oilless bronze bushings are a popular choice due to their strength, durability, and performance.

      Explore what is bushing and oilless bronze bushing

      High-Strength Brass-Based Oilless Bronze Bushing

      types of oilless bushings, waht is bushingOilless bronze bushings, also known as self-lubricating bushings, are a type of high-strength brass bearing that utilizes oil pockets for lubrication. These innovative components combine the functions of traditional bronze bushings with the advantages of high-strength brass (ZCuZn25Al6Fe3Mn4), resulting in increased hardness and extended operational lifespan. Oilless bushings offer remarkable load-bearing capabilities, making them suitable for heavy-duty applications.

      Features of Oilless Bushings:

      • Low Maintenance Frequency: Oilless bushings require minimal maintenance due to their self-lubricating design, reducing downtime and operational costs.
      • Ideal for Low-Speed Heavy Loads: Unlike ball-type linear bearings, oilless bushings excel in low-speed, high-load conditions, making them a preferred choice for various industrial scenarios.
      • High-Temperature and Low-Temperature Suitability: Oilless bushings can operate effectively under extreme temperature conditions, ensuring reliable performance in diverse environments.
      • Space-Saving Design: With thinner wall thickness compared to linear bearings, oilless bushings conserve space while delivering robust functionality.
        Suitable for Linear and Rotary Motion: Oilless bushings are versatile components that can be utilized for both linear and rotary motion applications.

      Materials for Oilless Bronze Bushings:

      Oilless bronze bushings come in five different materials, each tailored for specific requirements:

      • Copper Alloy: Resistant to high temperatures and chemicals, suitable for heavy loads and low-speed operations.
      • Bronze Castings: Excellent sintering resistance, suitable for small-scale operations, low loads, and high-speed applications.
      • Dry Type (Composite Layer): Suitable for heavy loads and low-speed applications, featuring a compact and thin-walled design.
      • Resin: Heat and chemical-resistant (such as PTFE resin), compliant with food safety regulations, suitable for low loads and low-speed operations.
        Castings: Suitable for medium loads and low-speed operations.

      Types of Oilless Bushings:

      • Straight Column Type
      • Shoulder Type
      • Thrust Type
      • Flange Integral Type
      • Flange Type Fixed Seat Assembly (Copper Alloy Bushing Embedded)
      • Threaded Bushing Type (Copper Alloy Bushing Embedded)

      Flange Integral Copper Alloy Standard Inner Diameter Type

      Category: Flange Type
      Metal: Brass
      Operating Environment: Standard / Oil-Containing
      Lubrication: Self-lubricating / Periodic Lubrication
      Maximum Surface Pressure: 29 N/mm²
      Maximum Speed: 0.5 m/s
      Maximum PV Value (Range): 1.1~2.0 N/mm²·m/s
      Maximum PV Value: 1.65 N/mm²·m/s

      How To Use Oilless Bushing?

      Here are some general steps to follow when using oilless bushings:

      1. Ensure the bushing is compatible with the application: Check the manufacturer’s specifications to ensure the bushing is suitable for the specific application, including load capacity, temperature range, and other environmental factors.
      2. Proper installation: Ensure that the bushing is installed properly according to the manufacturer’s guidelines. Improper installation can lead to premature failure or poor performance.
      3. Avoid contamination: Oilless bushings are sensitive to contamination, which can affect their performance. Keep the bushings clean and free of dust, dirt, and debris.
      4. Maintenance: Oilless bushings require less maintenance than traditional bushings, but they still need a periodic inspection to ensure they are performing properly. Check for signs of wear or damage and replace the bushing if necessary.

      Types Of Oilless Bushing

      There are several types of oilless bushings:

      • graphite plugged bronze bushing: the solid lubricant bushing, which uses a solid material, such as graphite, to provide lubrication between the bushing and the shaft. The solid lubricant slowly releases during use, providing a constant supply of lubrication without the need for oil or grease.
      • polymer bushing, which is made from self-lubricating plastic material. These bushings have small pockets or channels built into the surface, which trap and distribute the lubricant evenly across the surface of the bushing.
      • composite bushing, which uses a combination of materials, such as PTFE (polytetrafluoroethylene) and bronze, to create a low-friction surface. The PTFE acts as a lubricant, while the bronze provides strength and support.
      oilless bearings and bushings, the type of what is bushing
      wholesale oiless bushing bearing oilless bronze bushing

      Advantages of Oilless Bushings

      • Maintenance-Free Operation: Oilless bushings eliminate the need for frequent lubrication, reducing maintenance efforts and downtime.
      • Extended Lifespan: The self-lubricating mechanism enhances durability, leading to longer-lasting components.
      • Reduced Friction and Noise: These bushings provide smoother movement and quieter operation compared to traditional bearings.
      • Cost-Effective: While initial costs may be higher, the long-term savings from reduced maintenance and longer lifespan make them cost-effective solutions.
      • Oilless bushings are well-suited for heavy machinery due to their robust load-bearing capacity, impact resistance, and self-lubricating capabilities. They offer exceptional performance and dependability in demanding industrial settings, making them an ideal choice for applications involving heavy loads, low speeds, and reciprocating or oscillating movementsoilless bushings are designed to perform without the need for oil, making them a reliable and efficient solution for heavy machinery applications, where traditional oil-based lubricants may not be practical or effective.

      What is Bushing Demystified: Understanding Its application

      A bushings find applications across diverse industries, including:

      • Automotive: Suspension systems, steering columns, and engine components.
      • Manufacturing: Conveyor systems, robotics, and industrial machinery.
      • Aerospace: Landing gear, control systems, and flight control surfaces.
      • Medical: Diagnostic equipment, patient handling systems, and laboratory instruments.
      • Consumer Electronics: They find a place in electronics like computers and appliances due to their vibration-dampening capabilities and durability.

      we can offer a wide range of oilless bushing options tailored to different industries’ requirements.

      What is Bushing Demystified

      Bronze & Brass Material

      PN-EN 1982

      Bronzeoilless.com employs the sophisticated technique of centrifugal casting to produce a wide range of high-quality bushes, thrust washers, and sleeves. These products are crafted using various copper alloys that adhere to global standards such as PN-EN 1982, DIN 1705, 1709, 1714, PN 91/H-87026, ASTM B271, and BS 1400. Moreover, they are not limited to standard alloys; special alloys are also employed to meet unique requirements.

      GROUPPN-EN 1982DIN 1705, 1709, 1714PN 91/H-87026ASTM B271BS 1400
      TIN BRONZESCUSN10 (CC480K)CUSN10B10C52400
      TIN BRONZESCUSN12 (CC483K)CUSN12C90800
      LEADED BRONZESCUSN10PB10 (CC495K)B1010C93700
      BRASS ALLOYSCUZN32AL2MN2F31 (CC763S)C86400

      DIN 1705, 1709, 1714

      GROUPPN-EN 1982DIN 1705, 1709, 1714PN 91/H-87026ASTM B271BS 1400
      TIN BRONZESCUSN10 (CC480K)CUSN10B10C52400
      TIN BRONZESCUSN12 (CC483K)CUSN12C90800

      PN 91/H-87026

      GROUPPN-EN 1982DIN 1705, 1709, 1714PN 91/H-87026ASTM B271BS 1400
      TIN BRONZESCUSN10 (CC480K)CUSN10B10C52400
      LEADED BRONZESCUSN10PB10(CC495K)B1010C93700


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      Friction Bearing Mnaufacturer

      Collaboration with Bronzeoilless

      • Your Partner From Prototyping to Production

      We are here to support you every step of the way, from prototyping to full-scale production and beyond. At Bronzeoilless.com, we provide a comprehensive range of solutions to assist you in developing functional prototypes and seamlessly transitioning to production parts. With the capability to create custom parts on demand, our extensive selection of over 70 materials and 20 processes ensures flexibility and precision in meeting your specific requirements.

      • Metal Production Solutions

      Bronzeoilless manufacturer is your comprehensive solution for metal production. Our team is dedicated to meeting your manufacturing needs with a staff of technical experts, and a user-friendly secure quoting platform.

      We offer competitive pricing and efficient lead times on a wide range of services including, metal injection molding, die casting, metal stamping, metal extrusion, sheet metal fabrication, laser cutting, waterjet cutting, laser tube cutting, and tube bending. Start your quote or contact us today to get started.