Self-lubricating bushings are a crucial element in the hydraulics industry, playing a vital role in ensuring the smooth and efficient operation of hydraulic systems. These bushings are designed to provide long-lasting lubrication, reducing friction and wear, which can lead to increased system performance and durability.

The self-lubricating feature of these bushings eliminates the need for regular lubrication, making maintenance easier and reducing operational costs. This feature is achieved through the use of special materials or coatings that naturally release lubricant as they operate.

The hydraulics industry relies heavily on precision components to handle high-pressure fluids, and self-lubricating bushings are an excellent choice for such applications. They can be found in various hydraulic systems, including pumps, valves, cylinders, and other critical components.

By focusing on hydraulics industry needs, manufacturers of self-lubricating bushings can provide customized solutions that meet specific performance requirements. This ensures that the bushings integrate seamlessly into the hydraulic system, delivering optimal performance and reliability.

In summary, self-lubricating bushings are an essential component in the hydraulics industry, enabling efficient and durable fluid handling while reducing maintenance requirements. By focusing on industry needs, manufacturers can provide tailored solutions that meet the unique challenges of hydraulic systems.

Self Lubricating Steel Backed Bronze Bushing | Focus Hydraulics Industry

Cylindrical Sliding Bushings- Bearing & Bushings, Supplier of Hydraulic Bush - Hydraulic Bushing, Hydraulic Cylinder Bush offered by www.viiplus.com

Hydraulic System Cylinder Valve Bushing, Self Lubricating Bearings

VIIPLUS Self-Lubricating Bearings Material provides high-end casting to our valve divisions including materials like (low temperature) carbon steel/ stainless steel/ Bushing POM Bushes and high bronze alloy steels bearings.All analyses regarding the mold and pattern designs are being performed in our own premises in order to guarantee a constant casting level and quality.

Self-Lubricating Bearings Hydraulic system cylinderbushing | VSB-40

Auto transmission parts automobile steering system flange bushing and bearings for sale

VSB-40 Metal-Polymer Low Friction Plain Bearings

Detailed information

Sf-1d hydraulic special bearing. Is on the basis of SF, 1 p combined with the oil cylinder and the working principle of the shock absorber and design a new type of material, under the condition of no oil is wear-resisting, in addition to the product has the advantages of SF, 1 d, especially suitable for reciprocating frequent occasions large lateral force. Its performance is similar to that of Metal-Polymer Low Friction Plain Bearings, which is gradually replacing sf-1p products, which can be used in automotive, motorcycle shock absorbers and various hydraulic cylinders.

VSB-40 Metal-Polymer Low Friction Plain Bearings low friction bushings offer good wear and low friction performance over a wide range of loads, speeds and temperatures in dry running conditions
· Very good performance in lubricated applications
· Good performance in greased applications
· Suitable for linear, oscillating and rotating movements

Suitable for dry running, low coefficient of friction, lower wear, good sliding characteristics, the transfer film created can protect the mating metal surfaces, suitable for rotating and oscillating movement, high chemical resistance, low absorption of water and swelling. The VSV-40 improved the friction and much good wear resistance over the common CSB-10 range under lubricated operation.

1. /Polymer fibres mixture thickness 0.01~0.03mm. Lead-free bearing layer provides an excellent initial transfer film, which effectively coats the mating surfaces of the bearing assembly, forming an oxide type solid lubricant film.

2. Sintered bronze powder thickness 0.20-0.35mm, provides max. thermal conductivity away from the bearing surface, also serves as a reservoir for the mixture.

3. Steel backing, provides high load carrying capacity, excellent heat dissipation.

4. Copper/Tin plating thickness 0.002mm, provides good corrosion resistance.

5. Steel + Bronze Powder + /Fibre(Metal-Polymer Low Friction Plain Bearings)

· Metal-Polymer Composite Bushing Material
· Steel back + Porous Bronze Sinter +
· + Fillers

Sliding layer + Fillers Porous Bronze Sinter Steel Backing

Tech. Data

* Depending on operating conditions

Technical data

Bearing forms available in standard dimensions
· Cylindrical bushes
· Flanged bushes
· Sliding plates
· Thrust washers
· Flanged washers



Metric bearings and imperial bushings made to order: Standard bushing forms in special sizes, half-bushings, stamped/deep drawn shapes, bearings with locating notches, lubricant holes and grooves, customized designs

VSB-40 is developed for high duty, oil lubricated, hydraulic applications...Automotivesuspensionstruts,absorbers guide bushing, hydraulic cylinders, gear pumps, motors, axial and radial piston pumps & motors.VSB-40 is designed mainly for using under lubricated conditions and it performs excellent wear resistance and low static/dynamic shockfriction coefficient.

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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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