Oil-Free Bushing Square Flange Graphite Bronze Bushing is a high-performance component designed for use in various industrial applications where lubrication-free operation is required. The square flange design provides a stable and secure mounting base, ensuring reliable performance even under extreme conditions.

The bushing is made from graphite bronze, a material that offers excellent wear resistance, corrosion resistance, and thermal conductivity. This material choice ensures that the bushing can withstand high temperatures and pressures without the need for lubrication, reducing maintenance costs and extending the operational lifespan of the equipment.

The Oil-Free Bushing Square Flange Graphite Bronze Bushing is suitable for use in a wide range of applications, including pumps, compressors, gearboxes, and other rotating machinery. It helps reduce friction and wear, ensuring smooth and efficient operation of the equipment.

Our bushings are precision-manufactured to meet strict quality standards, ensuring a perfect fit and optimal performance in your specific application. We offer a comprehensive range of sizes and specifications to meet your unique requirements.

Contact us today to learn more about our Oil-Free Bushing Square Flange Graphite Bronze Bushing and how it can enhance the performance and reliability of your industrial equipment. We look forward to working with you to find the perfect solution for your lubrication-free operation needs.

Viiplus specializes in the production and sales of copper sleeves: self-lubricating copper sleeves, powder metallurgy copper sleeves, oil-containing copper sleeves, oil-free self-lubricating copper sleeves, JDB inlaid graphite copper sleeves, JF-800 bimetallic copper sleeves, FB090 bronze-based copper sleeves, British copper Sleeve, self-lubricating gasket.

Aluminium Bronze/Graphite Oiless Bushing

Large Oiless Bushing Size

graphite bronze parts, graphite sleeve, CNC bronze bushing, graphite sleeve flange, manganese sliding bearings

high tensile CuZn25Al5 oiless brass sleeve bushing ,WGB-650 Bronze Bearings,Graphite bronze bushings

Wholesale products oil hole sealing groove counterbore high-quality copper bushing brass bronze oil groove

Square Flange Copper Bush Solid Lubricant Embedded Bushes Graphite Sleeve

Material: Brass & Graphite
Inner Diameter: mm
Outer Diameter: 8mm
Length: 5mm
Flange Dimension: 8x8x5mm
Package Includes:
pcs Flange Graphite Bushing Sleeve

Self-Lubricating Graphite Plugged Bronze Sleeve Bushings Now Available Online

Graphite Impregnated Brass Bearings 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. With Graphite Impregnated Brass Bearings no form of supplementary lubrication is required.

A film of solid lubricant is transferred unto the shaft as it starts to run. The self-lubricating features allow the Graphite Impregnated Brass Bearings to be used where oiling is difficult, expensive to implement and where grease/oil cannot be used. Excellent lubricaiton is achieved even under high loads at low speeds.

Oil-free and self-lubricating, simple and durable

Square Flange Copper Bush Graphite Impregnated Brass Bearings Material

The sturdy bronze bushing and plate are completely made of tin bronze CuSn10P, which has good processing ability. All surfaces of the solid bronze bushing are machined.
The solid iron bushing and plate are made of the same bronze material, but if you do not have high requirements for high performance, the cost will be greatly reduced.

Graphite Impregnated Brass Bearings Features and advantages

1.Insensitive to dirty environment

2.Resistant to shock loads and vibrations at slow speeds

3.Enable operation with a poor shaft surface finish

4.Good resistance to corrosive conditions

Graphite Impregnated Brass Bearings Application

• Construction machinery
• Transport equipment
• Pulp and papermaking machinery
• Off-shore equipment

The application range of Graphite Impregnated Brass Bearings is almost limitless. From rigidity to maintenance applications, to high temperature environments to heavy-duty applications, graphite plug bronze bushings have excellent service life and wear resistance. These applications include:

Steel plant, slag, drying equipment, roasting furnace, heat exchanger, die, assembly line, machine tool, chain conveyor, offshore structure, bridge crane, winch, hatch cover, rudder arm, lifting equipment, tire and paper mill, Toggle the connecting rod bearings of injection molding machines, mixers, grinders, crushers, construction machinery, mining machinery, connecting rod bearings, electric shovel, etc.

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.