Metric cylindrical oilless bushes, constructed from CuSn8 and CuSn6 bronze alloys, are precision-manufactured components designed for superior performance in various industrial applications. These bushes feature oil or grease grooves that allow for the efficient distribution of lubrication, significantly reducing friction and wear.

The CuSn8 and CuSn6 bronze alloys used in these bushes offer excellent wear resistance, corrosion resistance, and mechanical properties. These alloys are known for their high strength and durability, making them suitable for use in high-load and high-speed applications.

The cylindrical shape of the bushes provides a stable and secure fit within the housing, ensuring reliable and consistent performance. The oil or grease grooves, strategically placed along the bush's surface, allow for the continuous supply of lubrication to the contact areas, further enhancing the bush's lifespan and performance.

Wh used in heavy machinery, motor vehicles, or other mechanical systems, these metric cylindrical oilless bushes offer a cost-effective and maintenance-friendly solution for reducing friction and wear. Their precision manufacturing, high-quality material, and lubrication grooves ensure reliable and efficient performance in various industrial settings.

Self-lubricating Plain Bushings, Wrapped Bronze Bearing With Through Holes | Metric Cylindrical Oilless Bushes CuSn8 & CuSn6

Wrapped bronze bearings are made entirely from phosphor bronze CuSn8. CuSn8 is characterized by the purity of the alloy with only a very low level of impurities.

Bronze bushing flange F092 ID100 OD105 F120 L50.pd...

092 Wrapped Bronze Series - Metric | Viiplus Bearings

The Wrapped Bronze Bearings are wrapped in cold bent homogeneous bronze (CuSn8) with exceptional material properties. Standard sizes include holes that are specially distributed over the entire bearing surface. These holes serve as lubricant reservoirs for quickly creating a lubricating film at the beginning of movement and, therefore, to reduce friction during movement. The material is suitable for construction and agricultural machinery, etc., where high loads and slow movement occur.

The bronze bushing wrapped in 090 / 092 is made of CuSn8P in tin-brass. The surface of the 090 is drilled with diamond oil sockets that are preserved to save oil. The surface of the 092 is drilled with oil openings at a certain angle and density; therefore, it is easier to form an oil film when the bushing works. The Wrapped Bronze Bearing products have good anti-fatigue, anti-erosion, anti-abrasion and load capacity. The products are widely applied under conditions of heavy load, but low operating speed, as in agricultural, building and engineering machinery.

Wrapped Bronze Bearing-High Quality Factory Price

FB092 Wrapped bronze bearings are made entirely of bronze. They are particularly suitable for applications that have to be relubricated due to dirty environments.
The sliding surface is provided with lubrication holes that contribute to improved lubrication performance.
This socket is manufactured in accordance with ISO 3547 and DIN 1494.

Oilless Bushes

Buying Request of Bronze Sleeve Bearings Choose Your Style - Plain, CuSn8 & CuSn6 or Oil / Grease Grooved?FB092 Tinapronssi 4050 Liukulaakeri. (40x44x50)

They are manufactured from china a variety of Bronze Alloys, including: CuSn8 / CuSn6 Bronze. MADE TO ORDER FROM CHINA Tuleja z brązu typ 092F lub 090F.We provide your desired Flange Bushings according to the specifications you require. Buying Request of Bearings Customized Wrapped Bronze Bearings

The Wrapped Bronze 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.

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

Wrapped Bronze Bushings Material Structure

CuSn8 with composition Sn 8 % P < 0.05 % Cu Rest

Wrapped Bronze Bearing Bronze hole distributing bearing is designed with cusn6.5p0.1 or cusn8p0.3 bronze as the matrix, and uniform and orderly oil filling holes are designed.Apply lubricating grease after assembly.Reconfiguration end face seal and use, the Wrapped Bronze Bearing has the advantages of large oil storage, easy installation, small design machine, and can replace the use of copper sleeve, greatly reduce the cost.These bronze bearings have been developed to for slow speed, high load applications, especially suited for oscillating motion and are perfect for the construction, mining/quarrying, agriculture and automotive industries.

Physical and Mechanical Performance

Bronze Bushings Application Character

1. The inner hole of this Wrapped Bronze Bearing product is filled with rhomboidal oil holes and oil pits, which can store a large amount of oil in use and extend the interval time of refueling;
2. Less oil lubrication, suitable for difficult lubricating or water lubrication occasions;
3. Good wear resistance, small friction coefficient and long service life;
4. It can be used in the range of -100℃ to 200℃;
5. Good running performance, low noise and no pollution;
6. Thin wall structure, light weight, can reduce the mechanical volume;
7. The matrix has high density, no gas shrinkage cavity and large bearing capacity;

Currently has been widely applied to various mechanical sliding parts, such as: automation machinery and equipment (scale, swing, slide, bending, cyclotron, turning parts) of the hydraulic cylinder guide bush, textile machinery, plastic molding machine, die-casting machine, rubber machinery, hydraulic truck, automobile, motorcycle industry, ports, water conservancy, construction, agricultural machinery, etc.

Cylindrical Bushings Plain Bearings and Sleeve Wrapped Bronze Bearings Metric Bronze CuSn8 with Lubrication 090 Strips, Slide paths

VIIPLUS is one of China supplier of Wrapped Bronze bearings.The are made completely of bronze. They are particularly suitable for applications, which must be re-lubricated due to dirty environments. The sliding surface is provided with lubrication pockets, which contribute to the enhanced lubrication performance.wrapped bronze bushing is made of tin-bronze CuSn8P with its surface punched with diamond oil sockets which are preserved for oil saving. It has good anti-fatigue, anti-erosion anti-abrasion and load capacity. The Wrapped Bronze Bearing products are widely applied in conditions of heavy load but low running velocity, such as on agricultural, buiding and engineering machines.

092 Wrapped bronze bushing with through holes

Operating performance

Availability

Bearing forms available in standard dimensions· Cylindrical bushes
Bearing forms made to order: cylindrical bushes with non-standard dimensions, flanged bushes, sliding plates, customized bearing designs

We can offer special sizes, shapes, shapes or lengths upon request. Please contact us for a quote or more information.

WE ARE A PROFESSIONAL
SELF-LUBRICATING BEARING MANUFACTURER & SUPPLIER

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If you have any questions, please feel free to contact us,you are always welcome, thank you!

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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