Oilless Bushes, Flanged bush, thin walled, self lubricating, Oil-Free Bushings（Embedded lubricant：MoS2）

Experience the Strength of Self-lubricating Bearings

Oilless Bushes, Maintenance free bearing and guide bushes, thin walled, bronze with solid lubricant, Custom Bushings

In the world of mechanical components, efficiency and durability are paramount. Bearings play a critical role in reducing friction between moving parts, ensuring smooth operations in machinery. However, traditional bearings come with the need for regular maintenance and lubrication, which can be time-consuming and costly. Enter the era of oilless bushes with solid lubricants—a revolutionary solution that promises to transform how industries manage mechanical wear and tear.

An oilless bushing, also referred to as an oil-free bushing or bearing, is a type of plain bearing engineered to operate without lubrication. Unlike traditional bearings that need oil or grease for smooth functionality, oilless bushings are made from materials with inherent lubrication properties. This design allows them to efficiently support rotating shafts in industrial machines.

Discover the Benefits of Oilless Bushes with Solid Lubricant: The Future of Maintenance-Free Bearings, What are Oilless Bushes?

Oilless Bearing Straight Bush： Oilless bushes are bearings designed to operate without the need for additional lubrication. These components are not only designed to be maintenance-free but also aim to enhance the longevity and reliability of machinery. The key to their functionality lies in their innovative design and the materials used.

Guide sliding bearing bushing – straight and flanged size bronze straight type guide bushing， continuous and centrifugal cast bronze Bearing！

guide bush oilless graphite bearing gunmetal c92610
bronze bush CuZn25Al6Mn4 plain bearing copper base self-lubricating sleeve high strength brass inlaid graphite

Oil-Free Bushings（Embedded lubricant：MoS2）, Construction and Materials

Our oilless bushes are crafted from special brass, specifically SO#50SP2, which is known for its durability and corrosion resistance. The bushes are thin-walled and incorporate solid lubricants, eliminating the need for periodic greasing. This design innovation ensures that the bushes are both lightweight and robust, ideal for high-load applications where reducing downtime is essential.

These bushings provide substantial advantages, such as lower maintenance costs and simpler machinery design by removing the need for lubrication systems.

The Role of Solid Lubricants, oilless bushes

The solid lubricants embedded in these bushes are primarily graphite. Graphite is renowned for its natural lubricity, offering low friction without the need for external greases. This is crucial in environments where the presence of traditional lubricants can attract dirt and debris, leading to increased wear and potential failure.

Manufacturer and supplier of oilless bushes, we specialize in delivering high quality components for mechanical automation, press die applications, plastic molds, and a broad range of electrical and industrial supplies. Dive into our extensive product portfolio and easily configure the perfect part to meet your specific requirements. Oilless bushings are crucial in various applications where lubrication is either impractical or undesirable. These include:

Food Processing Machinery: They prevent contamination by eliminating the need for lubricants.

Industrial Machinery: Useful in situations where access for lubrication is challenging.

Transport and Equipment: Employed in automobiles, railcars, construction equipment, printing machinery, housing equipment, and power plants due to their lubrication-free operation.

oilless bushing
Pattern of graphite inlays sleeve bronze base alloy

oilless bushes, Benefits of Graphite as a Lubricant, Maintenance and Lifespan of Oilless Bushings

Self-lubricating: Graphite provides a constant supply of lubrication, reducing the coefficient of friction and wear.

High-Temperature Stability: Graphite maintains its lubricity even under high temperatures, making it ideal for applications with varying thermal conditions.

Chemical Resistance: Graphite is inert to most chemicals, ensuring that the bushes remain effective in harsh environments.

The lifespan of an oilless bushing is influenced by wear and tear from use. Theoretical formulas calculate the wear rate, taking into account factors such as specific wear rate, design surface pressure, operating speed, and friction time. Proper design ensures that the bushing meets its required lifespan without exceeding the intended wear volume, thereby maintaining operational efficiency and reliability.

Oil-Free Bushes（Embedded lubricant：MoS2）, Manufacturing on Demand

Advantages of Using Oilless Bushes

  1. Maintenance-Free Operation: These bushes do not require additional lubrication, saving time and resources in maintenance.
  2. Cost Efficiency: Reducing the need for frequent replacements and repairs lowers overall operational costs.
  3. Environmental Impact: With no need for oil or grease, these bushes are more environmentally friendly, reducing the risk of pollution.
  4. Versatility: Suitable for a wide range of applications, from automotive to industrial machinery, where efficiency and durability are crucial.

Applications

Oilless bushes are ideal for use in various sectors including automotive, aerospace, industrial machinery, and more. Their robustness makes them particularly suitable for applications where operational conditions can degrade traditional bearings, such as in dusty or corrosive environments.

Final Thoughts

As industries continue to seek solutions that reduce environmental impact and increase efficiency, oilless bushes with solid lubricants stand out as a significant advancement. By choosing these maintenance-free, durable, and environmentally friendly components, businesses can not only enhance their operational efficiency but also contribute to a more sustainable future.

Embrace the innovation of oilless bushes in your machinery and experience a new level of performance and reliability. With these advanced components, the future of bearings is not just about motion—it’s about moving forward responsibly and efficiently!

Our oilless bushes are composed of a high-wear-resistant copper cast alloy, with the sliding surfaces uniformly embedded with solid lubricant plugs based on the operational conditions. The high-strength copper alloy provides a higher load capacity, and the solid lubricant forms a low-friction film.

In technically dry running conditions, the bearing surfaces are designed with a thick running-in film, which allows the solid lubricant to transfer to the counter material upon first contact.

Structure:

  • Solid lubricant film
  • Solid lubricant plugs
  • Bronze backing

Material Features:

  • Maintenance-free and long service life.
  • Suitable for high static and dynamic loads.
  • Low and stable friction coefficient without stick-slip effects.
  • Applicable in dirty, corrosive, impact load, and edge load conditions.
  • The base material offers good shock absorption capabilities.
  • Operable across a wide temperature range.
  • Ideal for applications with frequent start-stop, reciprocating, rotating, and oscillating movements, and where forming an oil film is challenging.
  • Characterized by low wear rates and long service life.

Machining: Our bronze bearings are easy to machine. Essentially, machining our products is no different from working with ordinary steel. No special tools are required, but sharp, preferably new tools should be used.

Milling: It is recommended to use high-speed steel or carbide tools with cooling lubricants. Start with a roughing to about 0.3mm from the nominal distance. Generally, milling/roughing requires little force, slow feed, high speed, and shallow cutting depths.

Drilling: When using high-speed steel or carbide tools, the use of cooling lubricants is recommended. Drill as with ordinary steel, and if necessary, increase the feed rate at the same speed. Plates must be drilled from the back side, and if necessary to drill through solid lubricant reservoirs, counterboring on the sliding surface should be performed.

MoS2, or molybdenum disulfide, is a compound composed of molybdenum and sulfur. It is recognized for its remarkable properties as a dry lubricant. Here are some key characteristics and uses of MoS2:

Properties

  • Low Friction: MoS2 has a very low coefficient of friction, which makes it an excellent lubricant. Its structure consists of layers of sulfur atoms sandwiched between layers of molybdenum atoms. These layers can slide over each other easily, reducing friction.
  • High Stability: It remains stable at high temperatures and pressures, which is beneficial for applications involving extreme conditions.
  • Chemical Resistance: MoS2 is chemically inert, meaning it doesn’t react easily with other substances. This property makes it useful in chemically aggressive environments where other lubricants might degrade.

Uses

  • Lubrication: MoS2 is widely used as a lubricant in situations where liquid lubricants are unsuitable. For example, in vacuum environments or in space applications where liquids can evaporate or where conventional oils might collect dust and debris.
  • Coatings: It is often used to coat different parts of machines, like gears and bearings, to reduce wear and extend their lifespan. The coatings are particularly useful in reducing friction and wear without the need for additional lubrication.
  • Additives: MoS2 is also added to greases and oils to enhance their lubricating properties, especially under heavy load and high-temperature conditions.

Industrial Applications

Due to its excellent lubricating properties and stability, MoS2 finds applications across various industries, including automotive, aerospace, and manufacturing. It helps in reducing wear on moving parts and can significantly extend the service life of mechanical components.

Overall, molybdenum disulfide is a valuable material for applications requiring durable and efficient lubrication, especially in harsh operating conditions.

Introducing Our High-Temperature Oil-Free Leader Bushings – Custom Size Now!

Discover the ultimate solution for your high-load and high-temperature applications with our Oil-Free Leader Bushings. These bushings are engineered with a special copper alloy that offers outstanding thermal conductivity and resistance to corrosion, making them ideal for challenging industrial environments.

Key Features:

  • Embedded Lubricant: Each bushing incorporates MoS2, a solid lubricant known for its exceptional low-friction properties and high stability under thermal stress. This means you get a maintenance-free operation without the need for external lubrication.
  • High-Temperature Capability: Designed to withstand extreme temperatures, our bushings maintain performance integrity even in the most demanding conditions.
  • Material Excellence: Made from a special copper alloy, these bushings are not only robust but also provide excellent heat dissipation, further enhancing their operational lifespan.
  • Design Advantage: Available with a head for easy installation and alignment, these bushings are designed to offer superior performance in guiding applications where precision is critical.

Applications:

Perfect for use in automotive, aerospace, and industrial machinery, these bushings excel in applications such as:

  • High-speed production lines
  • Aerospace assemblies
  • Automotive engines and transmissions
  • High-temperature processing equipment

Availability:

We have a comprehensive stock of these high-temperature oil-free guide bushings, ready for immediate shipment to ensure your operations remain uninterrupted.

Elevate your machinery’s performance and reliability with our Oil-Free Leader Bushings. Contact us today to find out more or to place an order!

Oilless bushes made from solid cast bronze are highly suitable for demanding applications in harsh environments. We offer a standard range of products including plain bushes, flanged bushes, and sliding plates that meet ISO 4379 and DIN 1850 standards.

The solid bronze bodies can be drilled and filled with solid graphite lubricants, allowing their use in oil-free environments. Additionally, the solid copper bodies can be machined to include oil grooves and oil holes, which, when filled with grease, provide enhanced lubrication.

Features and Benefits:

  • Resistant to dirty environments
  • Capable of withstanding impact loads and low-speed vibrations
  • Operable even when the shaft surface is poorly treated
  • Excellent corrosion resistance

Materials:

  • Solid bronze bushes and plates are entirely made from tin bronze, CuSn10P, known for its excellent mechanical properties. All surfaces of the solid bronze bushings are precisely machined.
  • Solid iron bushings and plates are made from bronze material in the same manner, but they are much more cost-effective if your performance requirements are not as high.

Application Examples:

  • Construction machinery
  • Transportation equipment
  • Pulp and paper machinery
  • Offshore equipment

Maintenance-Free Bearings and Guide Bushes

  • SOB: Maintenance-free bearing and guide bushes, made of bronze with solid lubricant for reliable operation.
  • SOBU: Thin-walled, maintenance-free bearing and guide bushes, crafted from bronze with solid lubricant, designed for space-saving applications.
  • SOBF: Self-lubricating flanged bush, offering easy installation and maintenance-free performance.
  • SOBFU: Thin-walled, maintenance-free flanged bronze bushing embedded with solid lubricant. This variant is highly wear-resistant and functions well in dirty environments and high temperatures.
  • SESB: Standard bearing and guide bush for versatile applications.
  • SOBB: Bush with an integrated thrust washer for improved axial support.
  • SOVM: Guide bush specifically designed for ejector and stripper plates, enhancing the assembly’s functionality.
  • TSOEG: Self-lubricating guide bushes for ejector and stripper plates, ensuring smooth operation without maintenance.
  • SOSG: Flanged guide bush for targeted application needs.
  • SOST: Another flanged guide bush variant, tailored for specific engineering requirements.
  • SOBB2: Plain bearing made of two half shells with a thrust collar on both sides, self-lubricating. Note: The housing bore has a deviating tolerance of J6.
  • SOBC: Flanged bush made of red brass with solid lubricant, combining durability with excellent lubrication.

Specialized Bushes and Bearings

  • VDIB: VDI guide bush conforming to DIN 9834 standards, ensuring compatibility and performance.
  • BS: Wrapped bushes with grease pockets for intermittent lubrication, enhancing longevity.
  • SINTB: Oil-soaked sinter bush, designed for consistent lubrication and smooth operation.
  • SINTF: Flanged sinter bush, oil-soaked for enhanced lubrication and stability.
  • C-Bush: Bronze bearing according to DIN ISO 4379, offering standard compatibility and robust performance.
  • F-Bush: Flanged bronze bearing according to DIN ISO 4379, ideal for applications requiring stable mounting.

Self-Lubricating Options

  • LBM: LBM dry bush, self-lubricating for dependable performance without external lubrication.
  • LBMF: Flanged version of the LBM dry bush, offering easy installation and self-lubricating properties.
  • POB: Maintenance-free bush designed for long-lasting, reliable performance.
  • POF: Maintenance-free flanged bush, providing ease of installation and long-term durability.
  • SOBS: Spherical bearing, self-lubricating to accommodate angular misalignments.
  • SOBW: Washer, self-lubricating to ensure smooth operation in various applications.
  • SOBWN: Thrust washer without mounting holes, self-lubricating for versatile use in different setups.
  • LWM: Self-lubricating thrust washer, designed for high-performance applications requiring reliable axial support.

These descriptions aim to convey the key features and applications of each product clearly and effectively, making it easier for clients to identify the right component for their needs.

The ronze bearings are crafted from a high-wear-resistant copper cast alloy, strategically equipped with solid lubricant plugs distributed evenly across the sliding surfaces based on operating conditions. This high-strength copper alloy provides superior load-bearing capabilities, and the solid lubricant forms a low-density, low-friction film.

During dry running conditions, the bearing surfaces are designed with a thick running-in film that allows the solid lubricant to transfer to the counter material upon initial contact. This design ensures optimal distribution of the solid lubricant between the sliding component and its counterpart, requiring a small sliding gap. This gap, in the micron range, occurs through wear and expansion from the grooves, meaning that a zero-gap pairing, which could lead to seizing, is not possible with our solid-lubricant-incorporated bronze bearings.

In the case of SOB-type bronze bushings, after being inserted within the tolerance range of F7 to H7, the bushing narrows inside the bore. The prerequisites for this setup include:

  • H7 tolerance for the bore of the outer casing
  • Appropriate outer casing wall thickness
  • Optimal wall thickness for the socket

Based on diverse use-case experiences, the following tolerance ranges are recommended against the operating partner:

  • H6 for highest precision in cutting tool and mold manufacturing
  • F7, E7 for general engineering requiring high precision
  • D8, E8 for heavy-duty machinery under heavy loads
  • E8 + D9 for extreme conditions in plant construction, furnace operations, or maritime environments

Bronze elements such as plates and angle irons are available in thicknesses ranging from 0.02 to 0.15 millimeters, typically with a guiding slider gap of 0.05 millimeters and a vertical gap of 0.1 millimeters, tailored according to application needs and required precision.

We offer a wide range of bearing types, from sleeve and flange to washer, plate, and thrust bearing style, incorporating sintered, cast bronze, and steel-backed PTFE lining materials. Our bearings are available in oil-immersed, dry, or graphite-filled versions to meet diverse application requirements.

In addition to cast bronze (CA932 / SAE 660) products, we also provide a broad spectrum of bronze alloy materials. These include high leaded tin bronze (CA 936 and 937), aluminum bronze (CA 614, 630, and 954), and manganese bronze (CA 863).

Our machining capabilities range from boring (minimum of 0.0937 inches) to turning (up to 75 inches) and to precision finishing with lengths up to 50 inches. We also offer milling, drilling, tapping, reaming, and centerless grinding services, along with specialized oiling and dry and relubrication services.

We possess extensive expertise in grooving, offering a complete range of groove types from simple straight and circular grooves to double helical and figure-eight patterns. Grooves, plain or graphite-filled, can be provided with a minimum inner diameter of 0.190 inches and a length of 0.09375 inches.

The choice of grooves is influenced by several factors such as operating temperature, type of lubricant, supplementary lubrication systems, and load. Any standard bearing listed in our catalog can be customized through various modifications like grooving, graphitization, drilling, or re-machining to meet specific requirements.

Unless otherwise specified, the width and depth of the grooves will be proportional to the bearing’s wall thickness and dimensions, and contained within the bearing itself. If needed, we can provide custom designs or combinations of the standard styles shown below. Where design permits, we recommend using V-grooves as they allow lubricants to flow efficiently over the bearing.

Boundary lubrication refers to situations where no load is supported by the lubricant, merely operating under occasional lubrication. Mixed-film lubrication occurs when the load is partially supported by lubrication; most cast bronze bearings fall under this category with recommended grooving styles. Full-film lubrication involves a layer of lubricant separating the load and bearing, generally applicable to both mixed-film and full-film applications.

Graphite lubrication is applied on the inner diameter surface of the bearing, facilitating extended bearing life at high operating temperatures and in applications lacking supplementary lubrication. Graphite is embedded under high pressure into grooves on the inner diameter. When the shaft begins to rotate, a lubricating layer transfers onto the shaft.

All our standard stock bronze bearings, as well as custom bearings, are available for grooving and graphitization. There are many different graphite processing methods available, including plug style. The depth and width of the graphite grooves depend on the wall thickness, bearing diameter, and other factors, which may vary with individual applications. When using graphite-lubricated bearings, an additional clearance of 0.001″ to 0.002″ is recommended, which can be achieved by ordering bearings with larger inner diameters or through re-boring.

Working Principle of Oilless Bushings

Oilless bushings operate without the need for external lubrication by utilizing the following methods:

  1. Solid Lubricants: These bushings incorporate solid lubricants, such as molybdenum disulfide or metallic saponite, into the bushing material, which reduces friction.
  2. Metal Polymer: Low friction coefficients, such as Polytetrafluoroethylene(PTFE), polyacetal, and PEEK. These materials provide an excellent balance of strength and safety.

Types of Oilless Bushings

Oilless bushings are classified based on their material composition into the following categories:

  1. Resin Type: Made from materials such as polyacetal and tetrafluoroethylene, these bushings are lightweight, cost-effective, and have a low coefficient of friction.
  2. Double-Layer Type: These bushings consist of a metal backing with a surface layer of resin or solid lubricant, providing a compact design and excellent mechanical strength.
  3. Metal Type: Constructed from copper or aluminum alloys embedded with solid lubricants like graphite, these bushings are suitable for high-load applications and offer a long lifespan.

Oilless bushings excel in various challenging conditions including high and low temperatures, corrosive environments, contamination from foreign substances, shock loads, vibrations, and in structural parts where oiling is structurally infeasible, undesirable, or ineffective.

Advantages of Oil-Free Bearings:

  • Effective in Harsh Environments: Can be used in corrosive settings.
  • Versatile Motion Compatibility: Ideal for high-load and low-speed movements, reciprocating motions, shock loads, angular oscillations, and intermittent stopping actions where traditional oil lubrication fails.
  • Maintenance-Free: Operates without the need for refueling.

Additional Benefits:

  • High-Speed Operation: Suitable for high-speed activities under light to medium loads. At high speeds, centrifugal force creates an oil film from the lubricant along the rotating shaft, reducing metal-to-metal friction.

SOB and SOBFF Oilless Bushes are types of self-lubricating bronze bushings. These bushings are designed to function without the need for additional lubrication, which makes them suitable for a wide range of industrial applications. Below are the sizes and specifications for the Oilless Bush:

SOB06-10-12 SOB08-12-08 SOB08-12-10 SOB08-12-12 SOB08-12-15 SOB10-14-08 SOB10-14-10 SOB10-14-12 SOB10-14-15 SOB10-14-20 SOB12-18-08 SOB12-18-10 SOB12-18-12 SOB12-18-15 SOB12-18-16 SOB12-18-19 SOB12-18-20 SOB12-18-25 SOB12-18-30 SOB13-19-10 SOB13-19-12 SOB13-19-15 SOB13-19-16 SOB13-19-20 SOB14-20-10

SOB14-20-12 SOB14-20-15 SOB14-20-20 SOB14-20-25 SOB14-20-30 SOB15-21-10 SOB15-21-12 SOB15-21-15 SOB15-21-16 SOB15-21-20 SOB15-21-25 SOB15-21-30 SOB16-22-10 SOB16-22-12 SOB16-22-15 SOB16-22-16 SOB16-22-19 SOB16-22-20 SOB16-22-25 SOB16-22-30 SOB16-22-35 SOB16-22-40 SOB17-23-15 SOB18-24-12 SOB18-24-15 SOB18-24-16 SOB18-24-20 SOB18-24-25 SOB18-24-30 SOB18-24-35 SOB18-24-40 SOB19-26-15 SOB19-26-20 SOB20-28-10 SOB20-28-12 SOB20-28-15 SOB20-28-16 SOB20-28-19 SOB20-28-20 SOB20-28-25 SOB20-28-30 SOB20-28-35 SOB20-28-40 SOB20-28-50 SOB20-30-16 SOB20-30-20 SOB20-30-25 SOB20-30-30 SOB20-30-35 SOB20-30-40 SOB20-30-70 SOB22-32-12 SOB22-32-15 SOB22-32-20 SOB22-32-25 SOB25-33-12 SOB25-33-15 SOB25-33-16 SOB25-33-20 SOB25-33-25 SOB25-33-30 SOB25-33-35 SOB25-33-40 SOB25-33-50 SOB25-33-60 SOB25-35-12 SOB25-35-15 SOB25-35-16 SOB25-35-20 SOB25-35-25 SOB25-35-30 SOB25-35-35 SOB25-35-40 SOB25-35-50 SOB28-38-20 SOB28-38-25 SOB28-38-30 SOB28-38-40 SOB30-38-12 SOB30-38-15 SOB30-38-20 SOB30-38-25 SOB30-38-30 SOB30-38-35 SOB30-38-40 SOB30-38-50 SOB30-38-60 SOB30-40-12 SOB30-40-15 SOB30-40-20 SOB30-40-25 SOB30-40-30 SOB30-40-35 SOB30-40-40 SOB30-40-50 SOB30-40-60 SOB32-42-15 SOB32-42-20 SOB32-42-30 SOB32-42-40 SOB35-44-20 SOB35-44-25 SOB35-44-30 SOB35-44-35 SOB35-44-40 SOB35-44-50 SOB35-44-60 SOB35-45-20 SOB35-45-25 SOB35-45-30 SOB35-45-35 SOB35-45-40 SOB35-45-50 SOB35-45-60 SOB38-48-30 SOB38-48-40 SOB40-50-15 SOB40-50-20 SOB40-50-25 SOB40-50-30 SOB40-50-35 SOB40-50-40 SOB40-50-50 SOB40-50-60 SOB40-50-70 SOB40-50-80 SOB40-55-15 SOB40-55-25 SOB40-55-30 SOB40-55-35 SOB40-55-40 SOB40-55-50 SOB40-55-60 SOB45-55-30 SOB45-55-35 SOB45-55-40 SOB45-55-50 SOB45-55-60 SOB45-56-30 SOB45-56-35 SOB45-56-40 SOB45-56-50 SOB45-56-60 SOB45-60-30 SOB45-60-35 SOB45-60-40 SOB45-60-50 SOB45-60-60 SOB45-60-70 SOB45-60-80 SOB50-60-20 SOB50-60-30 SOB50-60-35 SOB50-60-40 SOB50-60-50 SOB50-60-60 SOB50-60-70 SOB50-60-80 SOB50-62-30 SOB50-62-35 SOB50-62-40 SOB50-62-50 SOB50-62-60 SOB50-62-70 SOB55-70-30 SOB55-70-35 SOB55-70-40 SOB55-70-50 SOB55-70-60 SOB55-70-70 SOB60-74-30 SOB60-74-35 SOB60-74-40 SOB60-74-50 SOB60-74-60 SOB60-74-70 SOB60-74-80 SOB60-74-100 SOB60-75-30 SOB60-75-35 SOB60-75-40 SOB60-75-50 SOB60-75-60 SOB60-75-70 SOB60-75-80 SOB60-75-100 SOB63-75-60 SOB63-75-70 SOB63-75-80 SOB65-80-40 SOB65-80-50 SOB65-80-60 SOB65-80-70 SOB65-80-80 SOB70-85-30 SOB70-85-40 SOB70-85-50 SOB70-85-60 SOB70-85-70 SOB70-85-80 SOB70-85-100 SOB70-90-50 SOB70-90-60 SOB70-90-70 SOB70-90-80 SOB75-90-50 SOB75-90-60 SOB75-90-70 SOB75-90-80 SOB75-90-100 SOB75-95-60 SOB75-95-70 SOB75-95-80 SOB75-95-100 SOB80-96-20 SOB80-96-40 SOB80-96-50 SOB80-96-60 SOB80-96-70 SOB80-96-80 SOB80-96-100 SOB80-96-120 SOB80-100-40 SOB80-100-50 SOB80-100-60 SOB80-100-70 SOB80-100-80 SOB80-100-100 SOB80-100-120 SOB80-100-140 SOB85-100-25 SOB85-100-60 SOB85-100-80 SOB90-110-30 SOB90-110-50 SOB90-110-60 SOB90-110-70 SOB90-110-80 SOB90-110-90 SOB90-110-100 SOB90-110-120 SOB100-120-40 SOB100-120-50 SOB100-120-60 SOB100-120-70 SOB100-120-80 SOB100-120-90 SOB100-120-100 SOB100-120-120 SOB100-120-140 SOB110-130-50 SOB110-130-70 SOB110-130-80 SOB110-130-100 SOB110-130-120 SOB120-140-70 SOB120-140-80 SOB120-140-90 SOB120-140-100 SOB120-140-120 SOB120-140-140 SOB125-145-100 SOB125-145-120 SOB130-150-80 SOB130-150-100 SOB140-160-100 SOB140-160-140 SOB150-170-80 SOB150-170-100 SOB150-170-150 SOB160-180-80 SOB160-180-100 SOB160-180-150 SOB170-190-100 SOB170-190-150 SOB180-200-100 SOB180-200-150 SOB190-210-100 SOB190-210-150 SOB200-230-150 SOB200-230-200 ： SOBB12-15 SOBB16-20 SOBB20-25 SOBB25-30 SOBB30-35 SOBB40-45 SOBB50-55 SOBB60-65  SOBC20-30-20 SOBC20-30-25 SOBC20-30-30 SOBC25-35-20 SOBC25-35-30 SOBC25-35-40 SOBC30-40-25 SOBC30-40-30 SOBC30-40-40 SOBC30-42-25 SOBC30-42-30 SOBC30-42-40 SOBC32-42-30 SOBC32-42-40 SOBC32-45-30 SOBC32-45-40 SOBC35-45-30 SOBC35-45-40 SOBC35-45-50 SOBC35-48-30 SOBC35-48-40 SOBC35-48-50 SOBC40-50-30 SOBC40-50-40 SOBC40-50-50 SOBC40-55-30 SOBC40-55-40 SOBC40-55-50 SOBC45-55-40 SOBC45-55-50 SOBC45-60-40 SOBC45-60-50 SOBC50-60-40 SOBC50-60-50 SOBC50-60-60 SOBC50-65-40 SOBC50-65-50 SOBC50-65-60 SOBC55-70-50 SOBC55-70-60 SOBC60-75-50 SOBC60-75-60 SOBC60-75-80 SOBC60-80-50 SOBC60-80-60 SOBC60-80-80 SOBC65-80-60 SOBC65-80-80 SOBC65-85-60 SOBC65-85-80 SOBC70-85-60 SOBC70-85-80 SOBC70-90-60 SOBC70-90-80 SOBC75-90-60 SOBC75-90-80 SOBC75-95-60 SOBC75-95-80 SOBC80-95-80 SOBC80-95-100 SOBC80-100-80 SOBC80-100-100 SOBC85-100-80 SOBC85-100-100 SOBC85-105-80 SOBC85-105-100 SOBC90-110-80 SOBC90-110-100 SOBC90-115-80 SOBC90-115-100 SOBC100-120-80 SOBC100-120-100 SOBC100-120-120 SOBC100-125-80 SOBC100-125-100 SOBC100-125-120  SOBF08-12-10 SOBF08-12-15 SOBF10-14-10 SOBF10-14-12 SOBF10-14-15 SOBF10-14-17 SOBF10-14-20 SOBF12-18-15 SOBF12-18-20 SOBF12-18-25 SOBF12-18-30 SOBF13-19-15 SOBF13-19-20 SOBF15-21-15 SOBF15-21-20 SOBF15-21-25 SOBF15-21-30 SOBF16-22-15 SOBF16-22-18 SOBF16-22-20 SOBF16-22-23 SOBF16-22-25 SOBF16-22-30 SOBF16-22-35 SOBF16-22-40 SOBF18-24-20 SOBF18-24-30 SOBF20-30-15 SOBF20-30-20 SOBF20-30-25 SOBF20-30-30 SOBF20-30-35 SOBF20-30-40 SOBF25-35-15 SOBF25-35-20 SOBF25-35-25 SOBF25-35-30 SOBF25-35-35 SOBF25-35-40 SOBF25-35-50 SOBF30-40-20 SOBF30-40-25 SOBF30-40-30 SOBF30-40-35 SOBF30-40-40 SOBF30-40-50 SOBF35-45-20 SOBF35-45-25 SOBF35-45-30 SOBF35-45-35 SOBF35-45-40 SOBF35-45-50 SOBF40-50-20 SOBF40-50-25 SOBF40-50-30 SOBF40-50-35 SOBF40-50-40 SOBF40-50-50 SOBF45-55-30 SOBF45-55-35 SOBF45-55-40 SOBF45-55-50 SOBF45-55-60 SOBF50-60-30 SOBF50-60-35 SOBF50-60-40 SOBF50-60-50 SOBF50-60-60 SOBF55-65-40 SOBF55-65-60 SOBF60-75-40 SOBF60-75-50 SOBF60-75-80 SOBF70-85-50 SOBF70-85-80 SOBF80-100-60 SOBF80-100-80 SOBF80-100-100 SOBF90-110-60 SOBF90-110-80 SOBF100-120-80 SOBF100-120-100 SOBF120-140-80 SOBF120-140-100 SOBF130-150-80 SOBF130-150-100 SOBF140-160-80 SOBF140-160-100 SOBF150-170-100 SOBF150-170-120 SOBF160-180-100 SOBF160-180-120 SOBFU5-7-10 SOBFU5-7-12 SOBFU6-8-10 SOBFU6-8-12 SOBFU6-8-15 SOBFU8-10-10 SOBFU8-10-12 SOBFU8-10-15 SOBFU8-10-20 SOBFU10-12-10 SOBFU10-12-12 SOBFU10-12-15 SOBFU12-15-12 SOBFU12-15-15 SOBFU12-15-20 SOBFU12-15-25 SOBFU12-15-30 SOBFU13-16-12 SOBFU13-16-15 SOBFU13-16-20 SOBFU15-18-10 SOBFU15-18-12 SOBFU15-18-15 SOBFU15-18-20 SOBFU15-18-25 SOBFU16-20-12 SOBFU16-20-15 SOBFU16-20-20 SOBFU16-20-25 SOBFU16-20-30 SOBFU20-24-15 SOBFU20-24-20 SOBFU20-24-25 SOBFU20-24-30 SOBFU20-24-40 SOBFU25-29-30 SOBFU25-29-40 SOBFU25-29-50 SOBFU30-34-30 SOBFU30-34-40 SOBFU30-34-50  SOSB12-11 SOSB12-23 SOSB15-13 SOSB16-13 SOSB16-18 SOSB18-18 SOSB20-20 SOSB20-25 SOSB25-20 SOSB25-25 SOSB30-25 SOSB30-35 SOSB35-25 SOSB35-35 SOSB40-27 SOSB40-37 SOSB40-47 SOSB50-38 SOSB50-48 SOSB50-58 SOSB60-38 SOSB60-68 SOSB70-50 SOSB70-80 SOSB80-60 SOSB80-90 ： SOML18-75 SOML18-100 SOML18-125 SOML18-150 SOML28-75 SOML28-100 SOML28-125 SOML28-150 SOML38-75 SOML38-100 SOML38-125 SOML38-150 SOML48-75 SOML48-100 SOML48-125 SOML48-150  TLP18-100 TLP18-160 TLP18-220 TLP28-100 TLP28-160 TLP28-220 TLP38-100 TLP38-160 TLP38-220 TLP48-100 TLP48-160 TLP48-220 TLP58-100 TLP58-160 TLP58-220 TLP68-100 TLP68-160 TLP68-220  SOLP35-100 SOLP35-150 SOLP35-200 SOLP35-250 SOLP35-300 SOLP35-350 SOLP50-100 SOLP50-150 SOLP50-200 SOLP50-250 SOLP50-300 SOLP50-350 SOLP75-150 SOLP75-200 SOLP75-250 SOLP75-300 SOLP75-400 SOLP75-500 SOBWN10 SOBWN12 SOBWN13 SOBWN14 SOBWN15 SOBWN16 SOBWN18 SOBWN20 SOBWN25 SOBWN30 SOBWN35 SOBWN40 SOBWN45 SOBWN50 SOBWN55 SOBWN60 SOBWN65 SOBWN70 SOBWN75 SOBWN80 SOBWN90 SOBWN100 SOBWN120 ： SOBW08 SOBW10 SOBW12 SOBW13 SOBW14 SOBW15 SOBW16 SOBW18 SOBW20 SOBW25 SOBW30 SOBW35 SOBW40 SOBW45 SOBW50 SOBW55 SOBW60 SOBW65 SOBW70 SOBW75 SOBW80 SOBW90 SOBW100 SOBW120  SOBU5-7-8 SOBU5-7-10 SOBU5-7-12 SOBU6-8-8 SOBU6-8-10 SOBU6-8-12 SOBU6-8-15 SOBU8-10-8 SOBU8-10-10 SOBU8-10-12 SOBU8-10-15 SOBU8-10-20 SOBU10-12-8 SOBU10-12-10 SOBU10-12-12 SOBU10-12-15 SOBU10-12-20 SOBU10-12-25 SOBU12-15-10 SOBU12-15-12 SOBU12-15-15 SOBU12-15-20 SOBU12-15-25 SOBU13-16-10 SOBU13-16-12 SOBU13-16-15 SOBU13-16-20 SOBU13-16-25 SOBU15-18-10 SOBU15-18-12 SOBU15-18-15 SOBU15-18-20 SOBU15-18-25 SOBU15-18-30 SOBU16-20-10 SOBU16-20-12 SOBU16-20-15 SOBU16-20-20 SOBU16-20-25 SOBU16-20-30 SOBU18-22-12 SOBU18-22-15 SOBU18-22-20 SOBU18-22-25 SOBU18-22-30 SOBU20-24-15 SOBU20-24-20 SOBU20-24-25 SOBU20-24-30 SOBU20-24-40 SOBU25-29-15 SOBU25-29-20 SOBU25-29-25 SOBU25-29-30 SOBU25-29-40 SOBU30-34-15 SOBU30-34-20 SOBU30-34-25 SOBU30-34-30 SOBU30-34-40 SOBU35-40-20 SOBU35-40-25 SOBU35-40-30 SOBU35-40-40 SOBU40-45-20 SOBU40-45-25 SOBU40-45-30 SOBU40-45-40 SOBU40-45-50 SOBU50-55-30 SOBU50-55-40 SOBU50-55-50

  • bushing with collar

    Custom Online CNC Machining Services

    Get instant quotes for custom metal and self-lubricating bronze machined parts with our Online CNC Machining Service. Quickly produce prototypes and production parts in just a few days!

Design Guide

CNC turned prototypes and production parts in days

Ready to get started on your quote?

SOBF 8-12-10 SOBF 16-22-12 SOBF 30-40-25 SOBF 50-60-50
SOBF 8-12-12 SOBF 16-22-15 SOBF 30-40-30 SOBF 50-60-60
SOBF 8-12-15 SOBF 16-22-18 SOBF 30-40-35 SOBF 55-65-40
SOBF 10-14-10 SOBF 16-22-20 SOBF 30-40-40 SOBF 55-65-60
SOBF 10-14-12 SOBF 16-22-23 SOBF 30-40-50 SOBF 60-75-40
SOBF 10-14-15 SOBF 16-22-25 SOBF 31.5-40-20 SOBF 60-75-50
SOBF 10-14-17 SOBF 16-22-30 SOBF 31.5-40-30 SOBF 60-75-80
SOBF 10-14-20 SOBF 16-22-35 SOBF 31.5-40-35 SOBF 63-75-67.5
SOBF 12-18-10 SOBF 16-22-40 SOBF 31.5-40-40 SOBF 65-80-60
SOBF 12-18-12 SOBF 18-24-15 SOBF 35-45-20 SOBF 70-85-50
SOBF 12-18-15 SOBF 18-24-20 SOBF 35-45-25 SOBF 70-85-80
SOBF 12-18-20 SOBF 18-24-25 SOBF 35-45-30 SOBF 75-90-60
SOBF 12-18-25 SOBF 18-24-30 SOBF 35-45-35 SOBF 80-100-60
SOBF 12-18-30 SOBF 18-24-35 SOBF 35-45-40 SOBF 80-100-80
SOBF 13-19-10 SOBF 18-24-40 SOBF 35-45-50 SOBF 80-100-100
SOBF 13-19-12 SOBF 20-30-15 SOBF 40-50-20 SOBF 90-110-60
SOBF 13-19-15 SOBF 20-30-20 SOBF 40-50-25 SOBF 90-110-80
SOBF 13-19-20 SOBF 20-30-25 SOBF 40-50-30 SOBF 100-120-80
SOBF 13-19-25 SOBF 20-30-30 SOBF 40-50-35 SOBF 100-120-100
SOBF 13-19-30 SOBF 20-30-35 SOBF 40-50-40 SOBF 120-140-80
SOBF 14-20-15 SOBF 20-30-40 SOBF 40-50-50 SOBF 120-140-100
SOBF 14-20-20 SOBF 25-35-15 SOBF 45-55-30 SOBF 130-150-80
SOBF 14-20-25 SOBF 25-35-20 SOBF 45-55-35 SOBF 130-150-100
SOBF 15-21-10 SOBF 25-35-25 SOBF 45-55-40 SOBF 140-160-80
SOBF 15-21-12 SOBF 25-35-30 SOBF 45-55-50 SOBF 140-160-100
SOBF 15-21-15 SOBF 25-35-35 SOBF 45-55-60 SOBF 150-170-100
SOBF 15-21-20 SOBF 25-35-40 SOBF 50-60-30 SOBF 150-170-120
SOBF 15-21-25 SOBF 25-35-50 SOBF 50-60-35 SOBF 160-180-100
SOBF 15-21-30 SOBF 30-40-20 SOBF 50-60-40 SOBF 160-180-120

SOBU 6-8-8 SOBU 13-16-20 SOBU 20-24-40
SOBU 6-8-10 SOBU 13-16-25 SOBU 25-29-15
SOBU 6-8-12 SOBU 15-18-10 SOBU 25-29-20
SOBU 6-8-15 SOBU 15-18-12 SOBU 25-29-25
SOBU 8-10-8 SOBU 15-18-15 SOBU 25-29-30
SOBU 8-10-10 SOBU 15-18-20 SOBU 25-29-40
SOBU 8-10-12 SOBU 15-18-25 SOBU 30-34-15
SOBU 8-10-15 SOBU 15-18-30 SOBU 30-34-20
SOBU 8-10-20 SOBU 16-20-10 SOBU 30-34-25
SOBU 10-12-8 SOBU 16-20-12 SOBU 30-34-30
SOBU 10-12-10 SOBU 16-20-15 SOBU 30-34-40
SOBU 10-12-12 SOBU 16-20-20 SOBU 35-40-20
SOBU 10-12-15 SOBU 16-20-25 SOBU 35-40-25
SOBU 10-12-20 SOBU16-20-30 SOBU 35-40-30
SOBU 10-12-25 SOBU 18-22-12 SOBU 35-40-40
SOBU 12-15-10 SOBU 18-22-15 SOBU 40-45-20
SOBU 12-15-12 SOBU 18-22-20 SOBU 40-45-25
SOBU 12-15-15 SOBU 18-22-25 SOBU 40-45-30
SOBU 12-15-20 SOBU 18-22-30 SOBU 40-45-40
SOBU 12-15-25 SOBU 20-24-15 SOBU 40-45-50
SOBU 13-16-10 SOBU 20-24-20 SOBU 50-55-30
SOBU 13-16-12 SOBU 20-24-25 SOBU 50-55-40
SOBU 13-16-15 SOBU 20-24-30 SOBU 50-55-50

SOB 8-12-8 SOB 22-32-12 SOB 40-55-40 SOB 70-90-60
SOB 6-10-12 SOB 22-32-15 SOB 40-55-50 SOB 70-90-70
SOB 8-12-10 SOB 22-32-20 SOB 40-55-60 SOB 70-90-80
SOB 8-12-12 SOB 22-32-25 SOB 45-55-30 SOB 70-90-100
SOB 8-12-15 SOB 25-33-12 SOB 45-55-35 SOB 75-90-50
SOB 10-14-8 SOB 25-33-15 SOB 45-55-40 SOB 75-90-60
SOB 10-14-10 SOB 25-33-16 SOB 45-55-50 SOB 75-90-70
SOB 10-14-12 SOB 25-33-20 SOB 45-55-60 SOB 75-90-80
SOB 10-14-15 SOB 25-33-25 SOB 45-56-30 SOB 75-90-100
SOB 10-14-20 SOB 25-33-30 SOB 45-56-35 SOB 75-95-60
SOB 10-15-10 SOB 25-33-35 SOB 45-56-40 SOB 75-95-70
SOB 12-18-8 SOB 25-33-40 SOB 45-56-50 SOB 75-95-80
SOB 12-18-10 SOB 25-33-50 SOB 45-56-60 SOB 75-95-100
SOB 12-18-12 SOB 25-33-60 SOB 45-60-30 SOB 80-96-20
SOB 12-18-15 SOB 25-35-12 SOB 45-60-35 SOB 80-96-40
SOB 12-18-16 SOB 25-35-15 SOB 45-60-40 SOB 80-96-50
SOB 12-18-19 SOB 25-35-16 SOB 45-60-50 SOB 80-96-60
SOB 12-18-20 SOB 25-35-20 SOB 45-60-60 SOB 80-96-70
SOB 12-18-25 SOB 25-35-25 SOB 45-60-70 SOB 80-96-80
SOB 12-18-30 SOB 25-35-30 SOB 45-60-80 SOB 80-96-100
SOB 13-19-10 SOB 25-35-35 SOB 50-60-20 SOB 80-96-120
SOB 13-19-12 SOB 25-35-40 SOB 50-60-25 SOB 80-100-40
SOB 13-19-15 SOB 25-35-50 SOB 50-60-30 SOB 80-100-50
SOB 13-19-16 SOB 28-38-20 SOB 50-60-35 SOB 80-100-60
SOB 13-19-20 SOB 28-38-25 SOB 50-60-40 SOB 80-100-70
SOB 13-19-25 SOB 28-38-30 SOB 50-60-50 SOB 80-100-80
SOB 14-20-10 SOB 28-38-40 SOB 50-60-60 SOB 80-100-100
SOB 14-20-12 SOB 30-38-12 SOB 50-60-70 SOB 80-100-120
SOB 14-20-15 SOB 30-38-15 SOB 50-60-80 SOB 80-100-140
SOB 14-20-20 SOB 30-38-20 SOB 50-62-30 SOB 85-100-25
SOB 14-20-25 SOB 30-38-25 SOB 50-62-35 SOB 85-100-60
SOB 14-20-30 SOB 30-38-30 SOB 50-62-40 SOB 85-100-80
SOB 15-21-10 SOB 30-38-35 SOB 50-62-50 SOB 90-110-30
SOB 15-21-12 SOB 30-38-40 SOB 50-62-60 SOB 90-110-50
SOB 15-21-15 SOB 30-38-50 SOB 50-62-70 SOB 90-110-60
SOB 15-21-16 SOB 30-38-60 SOB 50-62-80 SOB 90-110-70
SOB 15-21-20 SOB 30-40-12 SOB 50-65-30 SOB 90-110-80
SOB 15-21-25 SOB 30-40-15 SOB 50-65-40 SOB 90-110-90
SOB 15-21-30 SOB 30-40-20 SOB 50-65-50 SOB 90-110-100
SOB 16-22-10 SOB 30-40-25 SOB 50-65-60 SOB 90-110-120
SOB 16-22-12 SOB 30-40-30 SOB 50-65-70 SOB 100-115-100
SOB 16-22-15 SOB 30-40-35 SOB 50-65-80 SOB 100-120-40
SOB 16-22-16 SOB 30-40-40 SOB 50-65-100 SOB 100-120-50
SOB 16-22-19 SOB 30-40-50 SOB 55-70-30 SOB 100-120-60
SOB 16-22-20 SOB 30-40-60 SOB 55-70-35 SOB 100-120-70
SOB 16-22-25 SOB 31,5-40-30 SOB 55-70-40 SOB 100-120-80
SOB 16-22-30 SOB 31,5-40-40 SOB 55-70-50 SOB 100-120-90
SOB 16-22-35 SOB 32-42-15 SOB 55-70-60 SOB 100-120-100
SOB 16-22-40 SOB 32-42-20 SOB 55-70-70 SOB 100-120-120
SOB 17-23-15 SOB 32-42-30 SOB 60-74-30 SOB 100-120-140
SOB 18-24-10 SOB 32-42-40 SOB 60-74-35 SOB 110-130-50
SOB 18-24-12 SOB 35-44-20 SOB 60-74-40 SOB 110-130-70
SOB 18-24-15 SOB 35-44-25 SOB 60-74-50 SOB 110-130-80
SOB 18-24-16 SOB 35-44-30 SOB 60-74-60 SOB 110-130-100
SOB 18-24-20 SOB 35-44-35 SOB 60-74-70 SOB 110-130-120
SOB 18-24-25 SOB 35-44-40 SOB 60-74-80 SOB 120-140-70
SOB 18-24-30 SOB 35-44-50 SOB 60-74-100 SOB 120-140-80
SOB 18-24-35 SOB 35-44-60 SOB 60-75-30 SOB 120-140-90
SOB 18-24-40 SOB 35-45-15 SOB 60-75-35 SOB 120-140-100
SOB 19-26-15 SOB 35-45-20 SOB 60-75-40 SOB 120-140-120
SOB 19-26-20 SOB 35-45-25 SOB 60-75-50 SOB 120-140-140
SOB 20-28-10 SOB 35-45-30 SOB 60-75-60 SOB 125-145-100
SOB 20-28-12 SOB 35-45-35 SOB 60-75-70 SOB 125-145-120
SOB 20-28-15 SOB 35-45-40 SOB 60-75-80 SOB 130-150-80
SOB 20-28-16 SOB 35-45-50 SOB 60-75-100 SOB 130-150-100
SOB 20-28-19 SOB 35-45-60 SOB 63-75-60 SOB 130-150-130
SOB 20-28-20 SOB 38-48-30 SOB 63-75-70 SOB 140-160-100
SOB 20-28-25 SOB 38-48-40 SOB 63-75-80 SOB 140-160-140
SOB 20-28-30 SOB 40-50-15 SOB 65-80-40 SOB 150-170-100
SOB 20-28-35 SOB 40-50-20 SOB 65-80-50 SOB 150-170-150
SOB 20-28-40 SOB 40-50-25 SOB 65-80-60 SOB 160-180-80
SOB 20-28-50 SOB 40-50-30 SOB 65-80-70 SOB 160-180-100
SOB 20-30-10 SOB 40-50-35 SOB 65-80-80 SOB 160-180-150
SOB 20-30-12 SOB 40-50-40 SOB 70-85-30 SOB 170-190-100
SOB 20-30-15 SOB 40-50-50 SOB 70-85-35 SOB 170-190-150
SOB 20-30-16 SOB 40-50-60 SOB 70-85-40 SOB 180-200-100
SOB 20-30-20 SOB 40-50-70 SOB 70-85-50 SOB 180-200-150
SOB 20-30-25 SOB 40-50-80 SOB 70-85-60 SOB 190-210-100
SOB 20-30-30 SOB 40-55-15 SOB 70-85-70 SOB 190-210-150
SOB 20-30-35 SOB 40-55-25 SOB 70-85-80 SOB 200-230-150
SOB 20-30-40 SOB 40-55-30 SOB 70-85-100 SOB 200-230-200
SOB 20-30-70 SOB 40-55-35 SOB 70-90-50 Bronze bushing
A straight, special copper alloy type oil-free guide bushing for high temperatures.

Oilless Bushes Material

Your Source for Heavy-Duty Self-lubricating Bearings