The 4550 CuSn8P Slide Bearing Bushing is a precision-engineered component crafted from the renowned CuSn8P alloy, also known as tin-phosphorus bronze. This alloy is highly prized for its remarkable wear resistance, corrosion resistance, and overall strength.

The Slide Bearing Bushing is specifically designed for sliding or rotating applications, where a smooth and dependable interface is paramount. The CuSn8P alloy ensures a low-friction surface, promoting smooth and effortless movement while minimizing wear and tear. This results in extended operational life and reduced maintenance requirements.

The "4550" designation likely refers to the specific dimensions or configuration of this bushing, although exact measurements may vary depending on the manufacturer. However, regardless of the precise dimensions, the use of CuSn8P alloy guarantees consistent and reliable performance.

In conclusion, the 4550 CuSn8P Slide Bearing Bushing is a high-quality component crafted from CuSn8P alloy, offering superior wear and corrosion resistance. It is ideally suited for sliding or rotating applications requiring a smooth and reliable interface.

4550 CuSn8P Slide Bearing Bushing

Quality bronze bushings (wall thickness 2.5mm) made by bronzegleitlager.com Order Today, discount price! 4550 CuSn8P Slide Bearing Bushing ID45xOD50xLength 50mm, Split Wrapped Bronze Bush sleeve plain bearing made to order from china.

WB802 FB092 4550 CuSn8P Slide Bearing Bushing 45x50x50mm

Bronze Sleeve & Flanged Bearings. bronze bushing & Custom size. leading bronze bushing Manufacturer. In Stock. bronze wrapped bushing sliding bush bronze bushing cheap price.

Wrapped bronze bushing slide bearing

Bronze Bushing Tyoe: WF-WB802, FB092

Specificaiton: 4550 , 45x50x50mm

Inner diameter: 45mm

Outer diameter: 50mm (wall thickness 2.5mm)

Straight Type: Sleeve Bronze Bushings, cylindrical wrapped bronze bearings

Totally Height: 50mm

Standard: DIN1494 / ISO3547

Material: CUSn8P Bronze

Hardness: HB110- HB125

Wrapped Bronze Bearing is made of bronze material with lubricating holes. It is a kind of wrapped greased (also sometimes graphite) lubricating bushing bearing. Bronze material normally in CuSn6.5 or CuSn8, the bronze is made as the particular formulation with high specific and gravity, and on its surface may be incorporated with spherical or diamond shaped indentations or/and oil grooves as required by customers.

Lubricating

Lubrication should be achieved through the shaft or radially through the bearing housing. All commonly used grease types or oils can be used.

Application field

The wrapped bronze bushings are widely used in construction machinery, agricultural machinery and so on.

Bronze Bushings Types

Ordinary cylindrical bearings, flanged bearings, thrust washers, sliding plates.

Wrapped Bronze Bushing Material

• CUSn8P Bronze

Characteristics

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

Wrapped Bronze Bushing Composition

Wrapped Bronze Bushing Features

1. Easy of fitting and lubrication
2. High load capacity
3. Excellent wear resistance with lower friction
4. High level thermal conductivity
5. Minimum overall dimensions
6. Chemical resistance
7. Extended service life and lubrication intervals than normal CSB-090 type bushings
8. Free selection of lubricants
9. Collection of dust and rub off particles in the holes

Wrapped Bronze Bushing Properties

Assembly For Bronze Sleeve Bushings

The bearings are intended to be pressed into housing with H7 tolerance. The inner diameter of the slide bearing will then hold tolerance H9.



+86 (0)57384499350 www.viiplus.com
FB092-5050 product drawing.pdf

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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