The C86300 Slide Bearing, also known as a Turned Bronze Bushing with Solid Lubricant Embedded, is a precision-manufactured component used in various applications where high wear resistance and smooth sliding properties are essential. This bearing material, typically composed of tin-based bronze alloy, is specifically designed to withstand heavy loads and frequent sliding motions while minimizing friction and wear.

The solid lubricant embedded within the bronze alloy provides a continuous lubrication layer that reduces the need for external lubrication. This self-lubricating feature makes C86300 slide bearings ideal for applications where lubrication is difficult or not feasible, such as in high-temperature or contaminated environments.

The flanged design of the bushing provides additional stability and prevents unwanted movement within the housing. The solid bronze construction ensures durability and long-lasting performance, even under demanding conditions.

Overall, C86300 Slide Bearings with Solid Lubricant Embedded are a reliable choice for applications requiring smooth, wear-resistant sliding surfaces. They are commonly used in machinery, equipment, and automotive components where precision and reliability are crucial.

Graphite Plugged Bushings, Bushing Price

VIIPLUS CHINA is the china supplier of continuous cast bushing & flange bearings with graphite and a major distributor of bronze alloys bushings. Our customers rely on us for high quality materials that help increase their profitability.REQUEST A QOUTE
Designing – Production – Assembling – Bronze Bushings Components for Industry

Bushing & Bearings Metal Cutting

Order the exact size, length and quantity of bronze sleeve bushing plugged graphite required for your job, saving time and money.
Metal Bushing & Bearings drilled by VIIPLUS Services
Drilling & Turning
Material processed to meet your exact requirements.
Bronze Metal Services milling a bar
Milling
Receive pre-machined bushing and reduce your processing time to manufacture bearings parts.
VIIPLUS CHINA EXPORT Manufacturing, produces precision bushings, spacers, sleeves, and specialty machined parts servicing the global valve industry. Capable of offering specialized materials self-lubricating bearing strips, proficient with stainless steel, carbon steel, C86300 bronze, aluminum bronze and plug graphite bushing materials.
Main advantages of solid bronze bearings include:Not affected by impurities Suitable for corrosive environments Suitable for impact loads and vibrations at low speeds Has a groove to retain the lubricant
Sliding bearings with or without flange are made of casted bronze material with special solid lubricant embedded.
Sliding Bearings specialist with technical expertise, good service and excellent delivery precision.
Extremely high load capacity; May be used without additional lubrication. Excellent for constructions with low speeds and high loads. Products Slide bearings bronze & Flange Bushings. Bronze Bearings Product Find your dimensions .

Description

The base metal is aimed for high loads and the solid lubricant makes it possible to use BRONZE-bearings without additional lubrication. BRONZE GRAPHITE BUSHING-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. These lubrication reservoirs cover about 25-30% of the sliding surface.
Standard technical data is shown below. More information





Graphited bearings should be soaked in lubricant prior to application. The graphite absorbs the lubricant, which is then transferred to the shaft when heated by the shaft motion. This action provides oil needed to lubricate but not in sufficient quantity to cause leakage at the bearing ends. The oil is re-absorbed by the graphite when motion ceases.


Plug graphiting is accomplished by drilling a rowed, staggered hole configuration through the bearing wall and pressing graphite into these holes and hard baking. The size and number of drilled holes and the number of rows is determined by the bearing length and diameter.

• Inch Sleeves
• Metric Sleeves
• Metric Flanges
• Metric Washers

Solid self-lubricating bearing with graphite plug insert | Graphite copper sleeve bushings

Graphite Plugged Bronze Bushings are all self-lubricating and maintenance free. These bushings are machined out of continuous cast bronze and plugged with solid lubricant plugs. A bushing and it's mating surface should always be seperated by a film of lubricant.Many of VIIPLUS’s components use graphite. Here is what you need to know about it. Graphite is ordinary carbon in a highly unusual form, a two-dimensional crystal. Think of it as a one-atom thick sheet. A piece of graphite is a stack-up of these sheets. A graphite pencil lead feels oily because these one-atom thick sheets are very slippery.

• Wear Plates
• Wear Strips
• Bushings
• Slide Assemblies
• Guide Components

Self Lubricating Graphite Plugged Bronze Sleeve Bushing
Plug Graphite Sleeve Bushing

• Inch Sized Bushings
• Metric Sized Bushings

Material

Bronze:CuZn25Al5

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.

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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