Metal-Polymer Plain Bearings Oil/Grease Lubricated Bushing With Blue POM Coated Self Lubricating Bearing

The Metal-Polymer Plain Bearings, specifically the oil/grease lubricated bushing with a blue POM (Polyoxymethylene) coated self-lubricating surface, offers a unique combination of durability, reliability, and self-lubricating properties.
The core of this bearing is constructed from a metal material, providing it with excellent structural strength and stability. The blue POM coating, on the other hand, is known for its wear resistance, low friction coefficient, and self-lubricating capabilities. This coating significantly reduces the need for external lubrication, resulting in reduced maintenance and downtime.
The oil/grease lubricated design of this bushing allows for efficient heat dissipation and reduces the risk of thermal stress and fatigue. The lubricant also acts as a buffer between the moving parts, further reducing friction and wear.
The blue POM coating is particularly advantageous in harsh environments or applications involving high temperatures, as it maintains its properties and lubricity even under extreme conditions. This coating also provides excellent corrosion resistance, extending the bearing's lifespan.
Overall, the Metal-Polymer Plain Bearings with the blue POM coated self-lubricating surface are an excellent choice for applications requiring low friction, high wear resistance, and reduced maintenance. Whether used in industrial machinery, automotive components, or other applications, these bearings offer reliable and dependable performance.

Metal-Polymer Composite Plain Bearings| VIIPLUS Self-lubricating Bearings

Metal-polymer composite plain bearings are bearings for very small radial or axial pouches. They work with little noise and are particularly suitable where high loads must be supported in combination with a relatively slow rotation and rotation movement. These products are available as bushings, flanged bushings and thrust washers in two groups of materials.

·Maintenance-free
·Low-maintenance
·Special designs
·special materials

Metal-Polymer Plain Bearings Grease Lubricated

POM bearings are made with a steel support on which a sintered bronze layer is applied. An upper POM layer is then applied to this bronze layer. The intermediate bronze layer ensures effective heat dissipation and creates a strong union between the steel support and the sliding surface.

The steel primer is provided with a layer of copper or tin to prevent corrosion, while the top POM layer contains grease wells to retain grease.

FEATURES

·Quiet operation free of squeaking or knocking.
·Low friction.
·Damage prevention to shaft.
·Virtually wear-free bearing surface with minimal lubricant.
·Low friction for smooth rotation at startup and at low speed under high load conditions.
·Seizure-free sliding surfaces.
·Excellent shaft misalignment tolerance.
·Ability to withstand impact loads.
·Excellent load-carrying performance even under oscillating and fretting conditions.

CHARACTERISTICS

·Metal-Polymer Plain Bearings for grease or oil lubricated applications

·Standard parts contain recesses in the sliding layer; smooth sliding layer available on request

·Optimal performance at relatively high loads and low speeds

·Suitable for linear, oscillating and rotational movements

·A wide range of parts available from stock

STRUCTURE AND COMPOSITION

Metal-Polymer Composite Bushing Material
Steel Back + Porous Bronze Sinter +
POM with Lubrication Indents

1. Self-lubricating. POM layer 0.3-0.5 mm. Once the lamination process is complete, the POMs are filled in the intersection of the bronze layer, the lubrication marks are printed, which are full of oil grease, which will be removed and transferred to the mating surface, form a lubricating film physically, which will reduce the fire. and protect the coupling shaft.
2. Porous bronze layer; The layer provides self-lubricating strength. Layer.
3. Steel support The layer provides load and thermal conductivity
4. Copper / tin layer.

PROPERTIES

ADVANTAGES

Main advantages of POM bearings include:

·Minimal maintenance
·High sliding velocity
·High load capacity
·Low friction coefficient
·Minimal bearing play

OPERATING PERFORMANCE

APPLICATION

Metal-Polymer Plain Bearings are particularly suitable for harsh environments where frequent maintenance is not possible.
Common applications:

·Hydraulic applications
·Elevators
·Transport
·Mechanical engineering
·Construction machinery


MAJOR APPLICATIONS:General industrial machinery, heavy machinery, machining facilities, plants and automotive parts

AVAILABILITY

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

Metric bearings and imperial bushings made to order: standard bush forms with special dimensions, half sleeves, special shapes obtained by pressing, bearings with locating slots, machined lubrication holes and grooves, custom sleeve designs.

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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