Our Metal Polymer Bearings Solution, featuring a unique Hole Slit Bushing design, offers an innovative and environmentally friendly bearing solution that meets all RoHS standards. This solution combines the durability and strength of metal with the lubrication and wear resistance of polymer materials, providing superior performance and long-lasting reliability.

The Hole Slit Bushing design allows for easy installation and adjustment, making it suitable for a wide range of applications. The bushings are precision-engineered to ensure smooth operation and reduced friction, resulting in improved efficiency and reduced maintenance costs.

Our Metal Polymer Bearings Solution is fully compliant with RoHS (Restriction of Hazardous Substances) standards, meaning it does not contain any harmful substances that are restricted or banned by international regulations. This ensures that our bearings are safe for use in various environments, including those with strict environmental regulations.

Wh you're looking to replace worn-out bearings or upgrade your existing system, our Metal Polymer Bearings Solution with Hole Slit Bushing offers a robust and reliable option that meets both performance and environmental requirements. Contact us today to learn more about our bearings and how they can benefit your application.

Metal Polymer Bearings Solution With Hole Slit Bushing In Accordance With RoHS

Our POM bearing material is known by various names such as POM or PTFE. Buying a POM bushing replacement bearing from VIIPLUS or its guarantees that you do not receive a cheap qoute bushing.

Grease-lubricated composite bearings, oil lubricated applications, metal polymer bearing for The agricultural equipment made to order online from china.The steel sleeve bushing is very suitable for lubrication A sliding layer with a smooth or recessed surface Suitable for grease lubrication
Low speed, low specific pressure, good dry friction performance.It is used in modern agriculture is in urgent need of solving the friction and wear problems during the lubrication of edges and boundaries, the maintenance-free problems and the heavy load problems under harsh working conditions.
While VIIPLUS SLIDING BEARINGS of agricultural machinery products, is to solve above problems, the perfect solution is given.

Metal-polymer Composite Bearings made in china

These materiais consist of metal backing bonded to a porous bronze sintered layer with based polymer bearing layer.The metal backing provides mechanical strength, while the bronze sinter layer provides a strong mechanical bonding between the backing and the bearing lining,the based polymer offers exceptional low friction even under dry condition and the thermoplastic based polymer is generally designed to operate with marginal lubrication.

Feature:

Excellent anti - dust and anti - harsh environment performance
Excellent chemical reaction resistance
Excellent corrosion resistance
Good fatigue resistance
Good wear resistance
Can be machined to meet tighter tolerances
Lead-free material, in accordance with the RoHS

High load capacity
Excellent impact resistance and self - aligning performance
Excellent anti-pollution performance
Good frictional and abrasion resistance
Good resistance to chemical corrosion
Good dry friction property

Typical applications

Recommended for applications requiring intermittent operation or border lubrication. Agricultural equipment: gearbox, clutch, baling carriages and wheel turntables for bale accumulators, front axle articulated bearings, intermediate gear bearings and steering knuckle bearings for combine harvesters ... Especially good - suitable for applications where grease cannot be supplied continuously or repeatedly.

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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