The Solid Lubricating Graphite Bronze Oilless Water Valves Bushing is a specialized component designed for use in water valves that require a self-lubricating, oil-free solution. This bushing incorporates graphite, a natural solid lubricant, within a bronze matrix, creating a unique composite material with exceptional properties.

The graphite component of the bushing provides excellent wear resistance and self-lubricating capabilities. This means that the bushing can operate smoothly without the need for external lubrication, significantly reducing maintenance requirements and downtime.

The bronze matrix provides the bushing with structural strength and stability. Bronze is a durable material that is resistant to corrosion and can withstand the rigors of demanding applications. The combination of graphite and bronze creates a bushing that is both tough and long-lasting.

The oilless design of this bushing is ideal for water valves and other applications where the presence of oil could contaminate the system. The solid lubricating properties of the graphite allow the bushing to operate smoothly without the use of oil or grease.

In summary, the Solid Lubricating Graphite Bronze Oilless Water Valves Bushing is a reliable and efficient component for water valves and other similar applications. Its unique combination of graphite and bronze, along with its oilless design, ensures smooth operation and reduced maintenance requirements.

Valve Shaft Bushings

China Bronze Oilless Bushing, Bronze Oilless Bushing,Brass Sleeve Bushing

Oilless Bush - Oil Less/Graphite Embedded Bush Distributor

Water Valves Bushing brass sleeve bushing consists of self-lubricating Oilless bearings made up of high-strength brass alloy bases made with advanced casting technology and built-in solid lubricants. They can be combined with various types of solid lubricants according to the conditions of use.

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Oilless Bearing Model

Featrue

· Can be used in water

· Can be repaired without the need for lubrication. Demonstrates high performance in high load and low speed operations.

· Demonstrates superior wear resistance in applications where oil films such as reciprocating movements, oscillations, frequent starts and stops, etc. are rarely produced.

· Superior chemical resistance and corrosion resistance.

· Standard Water Valves Bushing Brass Sleeve Bushing products are available.

Mechanical properties

·The values shown above are typical values, not the standard values. (Note)Compressive strength is 0.1%.

Replacment 500SP1-SL4　SERIES BRASS SLEEVE BUSHING plugged graphite Water Valves Bushing size sheet:

Service range

Characteristics

1.Without the extra cost and time saving of oil supply device, oil injection hole and oil tank processing and oil supply device, processing fee and assembly fee, the manufacturing cost can be greatly reduced.

2.The reduction in operating costs significantly reduces the amount of lubricating oil used and the maintenance cost of equipment, and also eliminates the risk caused by insufficient oil supply.

3.In addition, the use of self-lubricating oilless bearings can also improve mechanical properties, extend service life and improve reliability.

4.Recovery and environmental protection of lubricating oil without waste oil recovery treatment is conducive to environmental protection.

Advantages

1. Flexible, simple, convenient and wide range of use;

2. Can be used without oil;

3. Low use cost;

4. Excellent performance under high load and low speed;

5. Where the oil film is difficult to form, such as reciprocating movement, swaying movement and frequent starting and stopping, it can give play to excellent wear resistance;

6. Excellent drug resistance and corrosion resistance;

7. The cost of the Valves Bushing Brass Sleeve Bushing product is more competitive. Compared with similar Valves Bushing Brass Sleeve Bushing products, it has a longer working life, less maintenance, long replacement cycle and good performance.

Application

·Water Valves

·Potential applications

Not limited to hydraulic machinery, such as segmentation, miters and emergency gates, swing rings, wind power components, large valves, heavy machinery, cranes and conveyors, mining, construction, agriculture and other off-road equipment . equipment.
Oilless Bearings are also suitable for iron plants, steel mills, offshore structures and civil engineering projects such as bridges and other structures.

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.

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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.

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.