Easy to assemble, the CuSn8 Sleeve Bronze Flanged Sleeve Bearings exhibit a high load capacity, making them ideal for applications that require superior strength and durability. The use of CuSn8 bronze material ensures excellent wear resistance and long-lasting performance, even under heavy loads. The flanged sleeve design adds stability and rigidity to the bearing, while the easy assembly feature simplifies installation and maintenance. Wh in industrial machinery, automotive components, or any other high-load application, these bearings provide a reliable and efficient solution for smooth operation.

Self Lubricating Plain Bearing & wrapped bronze bushing

Our strength is high precision bronze bearings customize demand Easy to assemble . Our speciality is customized bearing in all sorts of bronze and brass sleeve bushing.Rolled flange bearings for extra heavy loads.Plain Bearings and Sleeve Bearings Metric Bronze CYLINDRICAL FLANGE BUSHES CuSn8 with Lubrication 092 & 090 boccole | Bearing forms made to order: cylindrical bushes with non-standard dimensions, flanged bushes, sliding plates, customized bearing designs
Oil-free bearing in the actual use of the effect

Characteristics

– Extra high load capacity
– Good lubrication properties
– Wide temperature range
– Easy to assemble

Bushing Areas of use
Forest- and constructional machinery,
agricultural machinery, cranes, forklifts, hoisting
equipment etc.
China's industry has gradually improved, and is very popular! Among them, the sliding bearing, and so the product will undoubtedly become the focus of attention, and now, we can see it in many places shadow. Experts on sliding bearings for what we have an important role.

Shapes & Types
Plain cylindrical bearings, flanged bearings,
thrustwashers, slidingplates.

Bearing forms available in standard dimensions

• Cylindrical bushes
• Bearing material made of solid bronze strip with indents for lubrication
• Good wear resistance, suitable for rough conditions
• Optimum performance under relatively high loads and low speeds

The importance of bearing installation we have a wide range of understanding. Nowadays, imported sliding bearings are required by the increasingly stringent market conditions required for the equipment and other properties that are also increasingly diverse in performance. Can from a large number of structure, size, choose the most appropriate bearing, need different angles.

However, the domestic bearing technology is relatively foreign relatively weak, need to be further improved. Rolling bearing internal clearance is small compared to sliding bearings, the parts of the machining accuracy is high, therefore, high precision operation.

At the same time, the rigidity of the bearing can be increased by the preload method. This is very important for precision machinery. However, the rolling bearing and sliding bearings, each have advantages and disadvantages, each occupy a certain application, therefore, the two can not completely replace each other!

ROLLED SLIDING BEARINGS (CUSN8)
VSB-22 FLANGE BUSHES Bronze Bearings made of CuSn8 with Lubrication Indents
Bronze Wrapped Bearing with Oil Pockets(092 CYLINDRICAL BUSHES

VSB-22 092 Cylindrical Bushes Flange Bushes

Easy for fitting and lubricating
High load capacity
Inner Diameter machineable parts are available against order
High level thermal conductivity
Minimum overall dimensions
Chemical resistance.
Initial pre-lubrication at assembly required

The bearings are wrapped from a cold formed homogenous bronze (CuSn8) with exceptional material properties. The standard sizes are fitted with diamond shaped lubrication indents in the bearing surface. These indents serve as lubricant reservoirs to rapidly build up a lubrication film at the start of movement and thereafter reduce the running friction. The material is suitable for construction and agricultural machinery applications.

Bronze Bearings and Bronze Sleeve Bushings made of CuSn8 with Lubrication Indents

This type of bushing is widely applied in hoisting machines and other construction machines, automobiles, tractors, trucks, machines tools and some mineral engines. It can be fabricated into bushes, half bearings, flanged bushes, taist washers, spherical bearing andsoon.

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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