Introducing our Brass High Strength Flange Embedded Graphite Plugged Bushings, specifically designed to offer exceptional performance and durability in a wide range of industrial applications. These bushings are crafted from high-grade brass, renowned for its strength and corrosion resistance, ensuring reliable operation even in harsh environments.

The unique design of our bushings features a flanged structure that provides additional support and stability. The embedded graphite plug enhances lubrication, reducing friction and wear, while also ensuring smooth and efficient operation. This combination of features results in bushings that are both tough and long-lasting.

Furthermore, our bushings are designed with precision mating housing and shaft tolerance. This ensures a secure and snug fit, minimizing movement and vibration during operation. The tight tolerances also contribute to the overall stability and performance of the bushings, making them ideal for high-precision applications.

Wh you're looking to replace worn-out bushings or upgrade your equipment with superior components, our Brass High Strength Flange Embedded Graphite Plugged Bushings are the perfect choice. They offer superior performance, durability, and precision, ensuring smooth and efficient operation of your machinery.

In summary, our Brass High Strength Flange Embedded Graphite Plugged Bushings are a top-notch solution for industrial applications that require high-strength, corrosion-resistant bushings with precision mating housing and shaft tolerance. Trust us to provide you with the best bushings for your specific needs.

Graphite Plugged Bushings

Inner diameter tolerance is F7 for Bronze Graphite OILLESS BUSH Outer diameter tolerance is m6 for Bronze Sliding Bushing Base material is CuZn25A15Mn4Fe3 All bush has solid graphite insert Leaser Marking possible on flat length surface Material Test Report and Final Inspection Report Available CNC Machined Bronze & Metal Products,Standard Size and Custom Bushings are available from stock made-to-order from china.Graphited bearings are primarily used in applications that need continual lubrication in hard to reach areas.Dimension Report for each part
Flange Tolerance Guide Bearing Mating Housing Shaft Special Solid Lubricant Embedded
Embedded Graphite Bronze Bushings Made-To-Order Choose your Bushing Inch Size,

Custom & Special Graphite Bronze Bushings

We provide sliding bearing for European, Japanese and American standard online.
Sliding Bronze bearings with or without flange are made of casted bronze material with special Graphite + additive embedded.The bronze bushings is aimed for high loads and the solid lubricant makes it possible to use plugged graphite bearings without additional lubrication. Sliding bearings show excellent performance without lubrication under conditions of low speeds and extreme high or low temperatures. The lubrication reservoirs are dispersed in a special way over the bearing surface, therefore the whole bearing surface is lubricated when the movement occurs.
Bronze Bushings Material Customized
Our main products are:Sliding bearings, self-lubricating bearings, solid lubrication bearings, self-lubricating bearings, sliding plate,trust washer,gasket, copper, brass sleeve bushings, and design ,Bushing material:phosphorus copper (QSn6.5 QSn10-1, 0.1), brass (H62, H65, H68 H70, H85, H90), tin bronze (QSn6-6-6, QSn5-5-5 CuSn10Pb1, CuSn8, CuSn4, CuSn12),Aluminum bronze (C60600, C64200, C60800, C61300, C61400, C61900, C62300, C62400, C63000, C63020, C63200, C65100, CuAL10Fe3, CuAL9Fe4Ni4, CuAL9Mn2, CuAL9Ni3Fe2, CuAL10Ni5Fe4), etc.

Sliding Bearings Precautions For Use:
1. Where possible, try to use standard design;
2. Please note that the surface of any foreign body assembly;
3. Sliding surface after use, because the solid lubricant film formation results in a surface with black or gray-black phenomenon, please do not scrub, as usual;
4. Before assembly, if the lubricating oil applied to the wear parts, can shorten the running-in period, in favor of mechanical operation, operation;
5. The assembly should be slowly pushed forbidden beat, so as not to damage bearings and cause deformation;
6. Design, should be used in different parts of the appropriate material, in order to improve the mechanical properties, extending bearing life;
7. In the high load, the reciprocating motion, it is recommended to use screws;
8. In fresh water, sea water, and at sea, the shaft, or recommend the use of stainless steel, chrome plated.
Groove Type :Single Loop Figure Eight Straight & Circular Double Loop Double Figure Eight Half Figure Eight Straight Circular
Note: In order to form a more perfect oil film between the bearing & shaft, we recommend a V-shaped groove whenever the design permits, as it allows full flow of the lubricant across the bearing surface.

Technical Parameters

Copper Alloy Bushings Materials

High-strength copper alloy as base material, according to the use conditions by a certain percentage of its working surface machined hole and fill one solid lubricant. High-strength copper alloy provides a high load carrying capacity and the solid lubricant can be formed lower friction. Under dry friction condition of our pre-designed layer of lubricating film in the bearing surface to ensure that in the shortest possible time will be transferred to the solid lubricant on the coupling member and form a valid solid lubricant film.

Sliding Bearing Characteristics

Custom Bushings Designs are taking on a huge need for today's self-lubricating bearing materials. Even in extreme extreme operating conditions and maximum load conditions are also required maintenance-free. With the continuous improvement of cost requirements, the reliability of equipment and plant operation requirements are also getting higher and higher. Metal self-lubricating bearings are designed for maintenance-free and self-lubricating conditions under long-term service conditions, thus making it possible to design reliable long-term self-lubricating systems. Metal self-lubricating bearing materials can be widely used in high-load low-speed conditions of rotation, swing and linear reciprocating motion, but also applies to traditional lubrication can not be achieved or prohibited to use the occasion, or in special conditions such as dust, Load or irradiation conditions need long-term and stable use.

Available Sliding Bearings Form:

Plain cast bronze sleeve bushings,grooved cast bronze sleeve bushings,flanged cast bronze bushings,thrust washer,cast bronze bearings , Oversized Bearings
Bushings Size:Our standard bearing line features over different deminsion & inch size bushings that are carried in stock.
Made-To-Order Cast Bronze Sleeve Bearings for an Oil/Grease Application
VIIPLUS INTERNATIONAL according to different customer requirements, according to DIN, BS, EN (DIN/EN), SS, NS, UNS, SAE and China GB standard production of all kinds of bronze, brass bushing, plate and rod products.All products are made of electrolytic copper by centrifugal casting, continuous casting and extrusion sliding bearings.
Sliding Bearing Application
Suite for general machines and under atmosphere,Ship,hydraulic turbine,gas turbine etc.

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Beyond Grease: A Deep Dive into Oilless Bushings & Why Viiplus Leads the Way

Friction is the enemy of efficiency. In countless machines, from massive industrial equipment to intricate automotive components, the constant battle against wear and tear dictates performance, longevity, and maintenance costs. Traditionally, grease and oil have been the go-to solutions, but they come with their own set of challenges: frequent re-lubrication, potential contamination, environmental concerns, and limitations in extreme conditions.

Enter the world of oilless bushings, also known as self-lubricating bearings or sliding bearings. These innovative components offer a smarter way to manage friction, delivering reliable movement without the need for external lubrication.

At Viiplus (www.viiplus.com), we don't just supply these components; we engineer solutions. Leveraging deep expertise in metallurgy and tribology (the science of friction, wear, and lubrication), we've become a leading name in sliding bearing technology. But what exactly are oilless bushings, and why should they be on your radar? Let's dive deeper.

What Exactly Are Oilless Bushings? The Science of Self-Lubrication

Unlike traditional ball or roller bearings that rely on rolling elements and require constant lubrication films, oilless bushings operate on the principle of sliding motion. Their "magic" lies in their material composition and structure, designed to provide their own lubrication at the bearing surface. This can be achieved through several key technologies:

1. Solid Lubricants Embedded: Materials like graphite, MoS₂, or PTFE are embedded directly into the metallic matrix (often bronze) of the bushing. As the shaft rotates or slides, a minuscule amount of this solid lubricant is transferred to the mating surface, creating a low-friction film.

2. Porous Metal Structures: Sintered bronze or iron materials are created with microscopic pores. These pores are vacuum-impregnated with oil during manufacturing. In operation, slight heating causes the oil to expand and seep onto the bearing surface, providing lubrication. When it cools, the capillary action draws the oil back in, creating a closed-loop system.

3. Layered Composites: These often feature a strong backing (like steel), an intermediate sintered layer (like bronze), and a low-friction overlay (often PTFE-based). The PTFE layer provides the primary sliding surface, offering extremely low friction.

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Contrasting Logic: Oilless vs. Traditionally Lubricated Bearings

The Tangible Benefits: Why Make the Switch?

Choosing oilless bushings isn't just about eliminating grease guns. It's about unlocking significant operational advantages:

• Drastically Reduced Maintenance: This is the most obvious benefit. No re-greasing means less labor, less scheduled downtime, and simplified maintenance protocols. Imagine the savings across a factory floor!

• Enhanced Reliability: Lubricant starvation is a major cause of bearing failure. Self-lubricating bearings ensure consistent lubrication, leading to predictable performance and longer service life, especially in hard-to-reach locations.

• Superior Performance in Harsh Conditions: Oilless bushings excel where traditional lubricants fail:

  • High Temperatures: Certain types can operate at temperatures far exceeding the limits of conventional greases.

  • Low Temperatures: No grease means no stiffening or freezing issues.

  • Contaminated Environments: The absence of sticky grease reduces the ingress of dirt, dust, and debris.

  • Vacuum or Underwater: Ideal for applications where liquid lubricants are impractical or impossible.

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• Cost Savings (Total Cost of Ownership): While the initial purchase price might sometimes be higher, the TCO is often significantly lower due to savings on lubricants, labor, downtime, and potential component failure replacement.

• Environmental Friendliness: Eliminating oil and grease leakage prevents contamination of products, machinery, and the environment. Crucial for industries like food processing, pharmaceuticals, and textiles.

• Compact & Simplified Designs: Without the need for lubrication systems (nipples, lines, reservoirs), machine designs can be more compact and streamlined.

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Exploring Viiplus's Portfolio: Finding Your Solution

Viiplus offers a comprehensive range of self-lubricating bearings designed to meet diverse application needs. Understanding the different series helps in selection:

• JDB Series (Graphite Plugged Bronze): Excellent for high-load, low-speed applications, intermittent motion, and high temperatures. The graphite plugs provide continuous solid lubrication. Ideal for heavy machinery, molds, and hydraulic components.

• SF Series (PTFE-Based Composite): Typically metal-backed (SF-1: steel, SF-2: steel/bronze) with a PTFE-based lining. Offers very low friction, good wear resistance, and suitability for dry running or marginal lubrication. Common in automotive, office equipment, and hydraulics.

• JF Series (Bimetal Bushings): Combines a steel backing with a sintered bronze or lead-bronze lining. Good load capacity and fatigue strength. Often used with grease or oil but can operate marginally lubricated. Found in engines, chassis parts, and agricultural machinery.

• FB Series (Wrapped Bronze): Often made from bronze strip, sometimes with lubrication pockets or through-holes. A cost-effective solution for medium loads and speeds, typically requiring initial greasing but offering extended re-lubrication intervals.

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Quick Comparison Chart (General Guide):

(Note: This is a simplified guide. Always consult specific product data sheets or Viiplus experts for precise application requirements.)

Uncertain which material or type suits your project? Our Bushing Material Selection Guide is designed to help, or Contact Us for a Free Quote and Expert Advice.

Why Partner with Viiplus? Expertise Meets Quality

Choosing the right supplier is as critical as choosing the right bushing. Here’s why companies worldwide trust Viiplus:

• Deep Expertise: Our foundation in metallurgy and tribology, coupled with a talented R&D team, means we understand the science behind reliable movement. We don't just sell; we solve friction challenges.

• Uncompromising Quality: We employ advanced manufacturing techniques (including sand casting, centrifugal casting, metal casting, investment casting) and a rigorous quality management system, ensuring every bushing meets the highest standards.

• Comprehensive Range: From standard metric sizes in JDB, SF, JF, and FB series to custom solutions including cylindrical, flange, double flange bushings, wear plates, and guide rails – we have the portfolio to match your needs.

• Global Reach, Seamless Logistics: Based in China, we ship sliding bearings worldwide. Our professional team handles customs clearance efficiently, ensuring smooth, timely delivery with all necessary documentation.

• Customer-Centric Approach: We believe in ethical practices and building trust. We offer flexible production (single units to large series), competitive pricing, and  online support.

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