In the heavy equipment and mining manufacturing industries, precision bushings play a crucial role in ensuring smooth and reliable operation. Among these, manganese bronze flanged bronze graphite plugged bushings with tight tolerance are highly sought-after for their durability, wear resistance, and self-lubricating properties.

These bushings are crafted from manganese bronze alloy, a material renowned for its excellent strength, hardness, and corrosion resistance. The addition of graphite plugs further enhances their performance by providing natural lubrication, reducing friction and wear between the bushing and mating surfaces.

The flanged design of these bushings allows for easy installation and secure positioning within the equipment. The tight tolerance specifications ensure precise fitment, minimizing movement and vibration, which is crucial for heavy-duty applications.

In heavy equipment and mining operations, where equipment is subjected to extreme loads and harsh environments, these precision manganese bronze flanged bronze graphite plugged bushings offer a robust and reliable solution. They help maintain the alignment and stability of critical components, enhancing overall equipment performance and extending service life.

Overall, these bushings represent the pinnacle of precision engineering and materials science, delivering superior performance and durability for heavy equipment and mining manufacturing applications.

Graphite Plugged Bushings

The CHINESE Supplier & Manufacturer of Precision Bushing Components.Heavy Equipment / Mining Bushings We Stock and Manufacture Solutions for the Heavy Equipment and Mining Industries Bushes Aluminum Bronze & manganese bronze Flanged Bronze Graphite Tight tolerance precision bushing sliding bearing Plugged Bushings Size Bronze Metric Graphite Plugged Sleeve ID x OD x Length mm
Self Lubricating Graphite Plugged Bronze Sleeve Bushing Plug Graphite Sleeve Bushing
Engineered bronze sleeve bearings for Every Industry! Bronze Bushing Products

• Sleeve Bushings
• Slide Bearings
• Thrust Bearings
• Injection Block Bearings
• Thrust Washers

we are a major supplier of precision customized sliding bearings to a range of commercial industries, providing turnkey solutions to customers at competitive rates. Leveraging our state of the art machining capabilities and on-site materials warehouse, we are able to create bushing parts for critical applications from any combination of materials.

High Tensile Manganese Bronze Solid

Our company produces various grades of copper alloy bushing material products:

Brass: H62, HAl66-6-3-2, an ordinary high-strength brass, special hard high-strength brass (HB> 250), etc. Aluminum Bronze: QAl10-5-5, ZCuAl10Fe3, ZCuAl9Fe4Ni4Mn2, CuAl10Ni etc. Bronze: ZCu5Pb5Zn5, CuSn7Zn4Pb7, CuSn8, CuSn12, ZCuSn10P1 etc. High lead and copper: ZCuPb10Sn10, CuPb15Sn7 etc. Meanwhile according to different customer requirements, in accordance with DIN, BS, EN, UNS, SAE and Chinese GB standards of production of various products (eg: CuZn39Pb3, CuZn40Al2, C86200, C95800, C48200). Welcome to inquire!
Self Lubricated for Higher Temperatures and Heavier Loads
Solid self-lubricating bearing with graphite plug insert | Graphite copper sleeve bushings

• Inch Sized Bushings
• Metric Sized Bushings

Quality Bronze Gleitlager & Polymer Plain Bearings Manufacturer
MATERIAL:C86300 Manganese Bronze
C86300 (SAE 430B) Manganese Bronze Bushing Plugged Graphite (spec sheet)
C86300 Typical applications include slow speed heavy duty load bearings, gears, cams and hydraulic cylinder parts.continuous cast manganese bronze is a high strength, non-heat treatable copper alloy intended for use in applications requiring a good combination of outstanding wear characteristics and high bearing strength for heavy loads and slow speeds.

Bronze sleeve bearings flanged bronze bushings for sale

Performance

Graphite Plugged Cast Bronze Bushings can be utilized where heavy loads must be supported at low to medium speeds
The Plug Graphite Cast Bronze Bushing is able to withstand high temperatures up to 570 F
The self-lubricating feature allows bearings to be used where oiling is difficult, expensive to implement, and where grease/oil cannot be used. Excellent lubrication is achieved even under high loads at low speeds.
Self lubrication with specially embedded solid lubricants reduces friction. Coefficient of Friction: 0.04 to 0.2

Technical Data

Applications

Bushings for Construction Equipment, Boom Link Bushings for Power Shovels, Toggle Link & Guide Bushings for Injection Mold Machines, Steel Mill Equipment, Furnace Dragouts, Drying Equipment, Roasters, Press Dies, Assembly Lines, Hydro-Electric Structures, Winches, Hoisting Equipment, Tire and Paper Mill Machinery and Many Other Industrial Applications.

Bushing Assembies

We also handle bushing parts packaging and assemblies.

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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