When it comes to replacing worn-out or damaged bushings, our cast bronze sleeve bushings are an excellent choice. These bearings are made from aluminum bronze, a material that offers exceptional wear resistance, corrosion resistance, and mechanical strength.

The self-lubricating design of our aluminum bronze bushings eliminates the need for regular lubrication, making them a convenient and cost-effective solution. This feature also reduces friction and heat generation, ensuring smoother operation and longer service life.

Our cast bronze sleeve bushings are precision-machined to ensure seamless integration into your existing system. They are designed to fit various shaft diameters and configurations, providing a reliable and robust replacement for worn-out bushings.

Our commitment to quality and reliability is unwavering. We adhere to strict manufacturing standards and employ rigorous quality control measures to ensure that each bearing meets the highest performance standards.

If you're looking for a reliable and durable solution to replace worn-out bushings in your machinery, our cast bronze sleeve bushings are the perfect choice. Contact us today to learn more about how our self-lube bearings can enhance the performance and efficiency of your equipment.

Graphite Plugged Bushings

Graphite Plugged Bushings Products are a complete line of self lubricated bronze bearing / bushing products that excel whenever standard lubrication is impractical, including heavy load, high temperature applications. They are manufactured from a variety of bronze alloys including Aluminum Bronze or CDA954, Bearing Bronze or CDA932 and Manganese Bronze or CDA863. These products are available in Standard Bearings, Washers and Wear Plates.
Some Fundamentals Of Aluminum Bronze:Aluminum Bronze Bushing made to order from china is basically alloys of aluminum and copper, with addition to metals such as iron, nickel and silicon. These materials are used in right proportions to enhance certain physical, mechanical as well as fabrication characteristics.
Aluminum Bronze Bushing Straight Bushings Engineered for a Longer More Reliable Service Life
Aluminum bronze graphite bushings is the highest strength standard copper based alloy. VIIPLUS produces C95400, C95500 and C95900 in standard sizes of bronze bushings. Aluminum in conjunction with iron and nickel in C95500 acts as a strengthener in these alloys. All of the aluminum bronzes can be heat treated, further increasing tensile strengths.

Aluminum Bronze Bronze Bushings-- C95800

Self-Lubricating Oil-Less Type Bushings
Aluminum bronze graphite bushings is the highest strength standard copper based alloy. VIIPLUS produces C95400, C95500 and C95900 in standard sizes of Bronze graphite Bushings. Aluminum in conjunction with iron and nickel in C95500 acts as a strengthener in these alloys bronze bushings. All of the aluminum bronzes bearings can be heat treated, further increasing tensile strengths.

Bronze sleeve bearings flanged bronze bushings for sale

Applications

C95800 ALUMINUM Bronze bushings
machinery, shafts, valve bodies, propeller hub, worm gears, bushings, propeller blades, pickling equipment, worms, wear plates, gears

Material Technical Data

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

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

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

C95800 Aluminum Bronze Bushings & Plate

• Inch Sized Bushings

• Metric Sized Bushings

Bearings Features
Flexible design, simple, convenient with wide applications
The designing of oil-feeding system is both a labor consuming and time consuming job. Therefore, the neglecting of oil-feeding apparatus in the designing of solid Iubricant bearings saves the cost of oil-feeding apparatus. Besides, for various specific circumstances, the solid lubricant bearings can be designed into various types to meet the requirements thereof. The use of solid lubricant bearings can greatly reduce the cost of mechanical maintenance and oil.

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.

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.