When it comes to metric flanges that offer exceptional performance and reliability, our graphite plugged bushings stand out as a trusted solution for self-lubricating applications. These flanges, equipped with graphite-plugged bushings, provide a unique advantage in terms of durability and friction reduction.

Graphite is a naturally occurring mineral known for its excellent lubricating properties. By plugging the bushings with graphite, we ensure that the flanges are able to lubricate themselves during operation, significantly reducing friction and wear. This self-lubricating feature eliminates the need for frequent lubrication or maintenance, making these flanges a cost-effective and convenient choice.

Our metric flanges are designed and manufactured to meet strict quality standards, ensuring their reliability and durability in various applications. The graphite-plugged bushings are precisely engineered to fit the flanges, providing a smooth and efficient operation.

Wh you're looking for flanges for machinery, equipment, or any other industrial application, our graphite plugged bushings ensure that your metric flanges will perform at their best. With their self-lubricating properties, these flanges will help you achieve smoother operations, longer lifespans, and reduced maintenance costs.

In summary, our trusted metric flanges with graphite plugged bushings are an ideal choice for self-lubricating applications. Their superior performance, durability, and cost-effectiveness make them a valuable addition to your industrial operations.

Graphite Plugged Bushings

Solid Bronze Cylindrical Bushes Bearing forms made to order: cylindrical bushes with bronze alloy according to C86300/C86200, special parts according to ISO, DIN or customer design, special alloys.Click here to go to our online catalog BRONZE SLIDING PLATE PLUGGED GRAPHITE.pdf and product specifier PLUGGED BRONZE BERINGS Series Bushings including sleeve bushing and flanged diminsions downloads.

plug graphite bearings are primarily used in applications that need continual lubrication in hard to reach areas. graphite is mechanically forced into the holes/grooves under extreme pressure. a film of lubricant is transferred to the shaft as it begins to turn. these bearings offer continuous lubrication over long periods without maintenance.

From Small Diameter To Large Diameter,Sleeve Bushing And Bearings Products And Solutions Are The Choice Of Discerning Engineers.

Trusted China Sliding Bearing Company, Bronze Bushings Supplier-Graphite C86300 Bronze Bushing

Self-Lubricating Oil-Less Type Bushings | C86300 Manganese Bronze With Graphite Plugs Metric Flanges Sizes

Extremely High Load Capacity;

.

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 Componen

Self Lubricating Graphite Plugged Bronze Sleeve Bushing
Plug Graphite Sleeve Bushing

• Inch Sized Bushings

• Metric Sized Bushings

Material

C86300 Manganese Bronze

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.

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.

4.  

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.

  •  
  •  
  •  
  •  
  •  
  •  
  •  

• 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.

•  

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.

•  

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.

•