Metal-polymer self-lubricating bearing solutions offer a unique combination of durability, wear resistance, and low-friction performance that is essential for various hydraulic components. These bearings are designed to operate in demanding environments, where traditional bearings may fail due to friction, wear, or lubrication issues.

The metal-polymer composite material used in these bearings consists of a metal matrix reinforced with polymeric fibers or particles. This combination provides a strong base material with enhanced lubrication properties. The polymer component helps to reduce friction and wear, while the metal matrix ensures durability and structural integrity.

One of the key advantages of metal-polymer self-lubricating bearings is their ability to operate without the need for external lubrication. This significantly reduces maintenance requirements and downtime, as there is no need to replace lubricants or perform regular maintenance checks. The bearings are also resistant to chemicals and other contaminants, further enhancing their reliability in harsh environments.

In hydraulic components, metal-polymer self-lubricating bearings are commonly used in pistons, cylinders, valves, and other moving parts. They help to ensure smooth and efficient operation, while reducing wear and friction, extending the life of the component.

In summary, metal-polymer self-lubricating bearing solutions provide an excellent choice for hydraulic components that require reliable and low-friction performance in demanding environments. Their unique combination of durability, wear resistance, and self-lubricating properties make them an ideal solution for a wide range of applications.

Dryslide bushings

Dry slide bushings have a general structure consisting of a steel substrate connected to a porous bronze agglomeration layer impregnated and coated with a material from a / lead bearing. Dry sliding plain bearings take advantage of the excellent properties of a dry bearing and combine them with strength, stability and good wear resistance, excellent thermal conductivity and low thermal expansion.

Basic material / final condition: ST+Stainer bronze + RED FLANGE bushings, Bundbuchse collared bushings

Butt joint bronze steel backed bush , copper bushing , Brass made bushing 0810 1825 2020...

Rolled dry sliding bushings ,Metal-Polymer Self-lubricating Bearing Solutions | Hydraulic Components in High Performance Plain Bearing Solutions.Choose from a variety of polymer plain bearings type & Material.Cylindrical bushes Hydraulic Cylinder Bushings Repairs & Components Bushings collar bushes for sale,manufacture of metal-backed bearings.

Characteristics and Advantages

• bushings requires no lubrication

• Provides maintenance free operation

• has a high pU capability

• Lubricated bushings exhibits low wear rate

• Seizure resistant

• Suitable for temperatures from -200 to +280 °C

• High static and dynamic load capacity

• Good frictional properties with negligible stick-slip

• Resists solvents

• No water absorption and

therefore dimensionally stable

• BUSHINGS is electrically conductive and shows no electrostatic effects

• SELF-LUBRICATING BEARINGS has good embedability and is tolerant of dusty environments

• Compact and light

• OILLESS bearings are prefinished and require no machining after assembly

Metal-Polymer Low Friction Plain Bearings (Material Steel + Bronze + )
Steel/ composite bearing, in red color layer

Metal-Polymer Low Friction Plain Bearings Composite Dry Bushing Flange Bush .

By working with you early in the design process, VIIPLUS BUSHINGS is able to inspect your parts and ensure that the performance and cost-effectiveness of the bearing and surrounding components are optimized.

CHARACTERISTICS

Metal-Polymer Self-lubricating Lead Free Bearing Solutions
VSB-40 similar 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

• Lead-free material

• Good frictional properties with negligiblestick-slip

• High static and dynamic load capacity

• Suitable for rotating, oscillating,reciprocating and sliding movements

• Compact size and low weight

• Prefinished that requires no machining after assembly

• Possibility to burnish for reduced

Characteristics of Lubricated Bearings
VSB-40 series similar Standard Products

• Metal-Polymer Low Friction Plain Bearings Cylindrical bushes

• Metal-Polymer Low Friction Plain Bearings Flanged bushes

• Metal-Polymer Low Friction Plain Bearings Flanged Washers

• Metal-Polymer Low Friction Plain Bearings Thrust Washers

• Metal-Polymer Low Friction Plain BearingsB Cylindrical bushes

• Metal-Polymer Low Friction Plain BearingsB Flanged bushes

• Metal-Polymer Low Friction Plain Bearings Strip

• Metal-Polymer Low Friction Plain BearingsB Strip

AVAILABILITY

Bearing forms available in standard dimensions

WHAT IS BUSHINGS?

-bronze powder-steel is a widely used three-layer self-lubricating bearing material with good anti-friction and anti-wear.

APPLICATION

Given the performance characteristics in both dry and lubricated operating conditions, VSB-40 Metal-Polymer Low Friction Plain Bearings and Metal-Polymer Low Friction Plain BearingsB bearing materials are extensively used in a wide range of automotive and industrial applications, such as:

·Automotive

Braking systems, clutches, gearbox and transmissions, hinges - door bonnet and
boot, convertible roof tops, pedal systems, pumps - axial, radial, gear and vane, seat mechanisms, steering systems, struts and shock absorbers, wiper systems.

·Industrial

Aerospace, agricultural, construction equipment, food and beverage, marine, material handling, office equipment, packaging equipment, pneumatic and hydraulic cylinders, railroad and tramways, textile machinery, valves.

What is self-lubricating bearing

General profile steel-base oil-free self-lubricated bearing

1. oil-free or less lubricated, can be used without maintenance or less maintenance.

2. Good wear resistance, small friction coefficient and long service life.

3. with appropriate elastoplastic, the stress can be distributed on a wide contact surface to improve the bearing capacity.

4. The coefficient of static and dynamic friction is similar, so as to ensure the working accuracy of the machine.

5. Can make machinery reduce vibration, reduce noise, prevent pollution, improve working conditions.

6. Transfer film can be formed during operation to protect the grinding shaft.

7. The hardness requirement of grinding shaft is low, which reduces the processing difficulty of related parts.

8.Thin wall structure, light weight, can reduce the mechanical volume.

9. steel back can be plated with a variety of metals, can be used in corrosive media;At present, it has been widely used in sliding parts of various machines.

Boundary lubricated bearing series

1. Good load bearing and wear resistance.

2. Suitable for high load and low speed rotating motion, swing motion and often open and close frequently under load and not easy to form hydrodynamic lubrication occasions.

3. Under the condition of boundary lubrication, the bearing can be maintained without oil for a long time, while the bearing's service life can be prolonged by oil adding in the passing layer.

4. The plastic layer on the surface can leave a certain amount of margin during processing and forming, and the assembly can be processed by itself after being pressed into the seat hole to achieve better assembly size.

5. The products are mainly used in automobile chassis, metallurgical machinery, mining machinery, water conservancy machinery, construction machinery, agricultural machinery, steel rolling equipment, etc.

Standard Bushing Parts For Hydraulic Cylinder Repair:

• Inspect / Repair / Replace Bushings As Necessary
• Carbon Steel Is Normally Used As A Backing Material

Other Bushings Application

Typical Applications Include Automotive Vehicles, Farm Equipment, Construction And Material Handling Equipment.

Delivery

We can deliver the cargo to you by following ways:

1. By Courier:
DHL, FEDEX, UPS, TNT, SF EXPRESS
China Post, China Small Package,etc.

2. By Air:
We can deliver to Shanghai,Ningbo etc.

3. By Sea:
Near by ports are Shanghai and Ningbo

Package

Bearing/Busing is covered with polybags in carton and covered by protective film
Outer is wooden carton or pallet
Hot Tags: sae841 bushing, China, suppliers, manufacturers, factory, wholesale, customized

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https://www.viiplus.com

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.