Durable CuSn6Zn6Pb3 Bimetal Bearing Bushes are designed to provide exceptional wear resistance and durability in a wide range of industrial applications. Manufactured using a high-quality bimetallic material, these bushings offer a unique combination of properties that make them ideal for demanding environments.

The CuSn6Zn6Pb3 alloy composition ensures excellent corrosion resistance, while the bimetallic construction provides both strength and ductility. This allows the bushings to withstand high loads and temperatures, maintaining stable performance even under extreme conditions.

These bearing bushes are available in both metric and imperial sizes, making them compatible with a variety of machinery and equipment. The metric size bushings are precision-engineered to fit metric shafts and housings, ensuring a secure and reliable fit.

The durable construction and precise sizing of CuSn6Zn6Pb3 Bimetal Bearing Bushes contribute to their long service life and reduced maintenance requirements. Wh used in automotive, construction, or other industrial applications, these bushings are a dependable choice for ensuring smooth and efficient operation.

Bimetal Bearing Bushes.

Bimetal bearing for Engines, Gears, Transmission systems, Joints and Kinematic systems, Pumps, Compressors, Elevators / Escalators, Textile machinery, Others

Bimetal Bearing Bushes has high performance environmental friendly dual metal bearings are customer-specified products. Bimetal Bearing Bushes uses low-carbon steel plate as supporting base and powder metallurgy sintering and rolling processes to form a leadless CuSn8Ni steel-copper alloy product. The materials in this product meet RoHS directory/regulation/rule , under certain circumstances can substitute for JF800 products. Bimetal Bearing Bushes has high load bearing capacity and good wear-resistance. Its shortcoming is that it cannot be used without oil lubrication. In places where oil lubrication is sufficient, Bimetal Bearing Bushes has superior performance.

OEM Connecting Road Bimetal Bushing Bimetal Bearing Metal Bushes Car Bushing Parts Chassis Bush Auto Parts

Bimetals bearing & bushings CuSn6Zn6Pb3 manufactures Bimetallic bearing is based on high quality low carbon steel, sintered lead-tin-bronze alloy CuSn6Zn6Pb3 Material on the surface, rolled spherical oil hole on the alloy surface, easy to store oil and effectively reduce wear.The steel back can be plated with copper or tin as required.Suitable for medium load, medium to high speed, and bearing with large impact load, used for rolling bearing, thrust gasket, piston pin bearing of connecting rod of internal combustion engine on mechanical equipment.
We Are Committed To New Bearing & Bushings.Conventional lubricating Bearings.

bi-metal bushing is backing on low carbon steel, sintered with CuPb10Sn10 or CuSn6Zn6Pb3 bronze powder, which has the highest load capacity among the bi-metal bushings. the application including balance suspensions of heavy-duty trucks, track roller of bulldozers, auto chassis etc.

It is a kindly of high load and low speed bushing, with wide application.

Liner material: CuPb10Sn10 or CuSn6Zn6Pb3

Load capacity: 65N/mm2

Temperature Max: 260℃

Liner hardness: HB70~100

Technical Parameters

CuSn6Zn6Pb3 tin bronze self-lubrication bearing, is a kind of density is higher than high-force brass, suitable for high temperature and low load occasions, reflects very wear-resistant.

This copper alloy is the main material for bronze solid lubrication inlaid bearing, bimetallic bearing, etc. It can be made into copper sleeve, bearing bush, gasket, slide block, guide rail and so on.

In addition to the standard products shown in the catalog, you can also provide non-standard products or order according to customer requirements.

Chemical Composition

[alloy technical parameters]
Chemical composition of tin bronze (CuSn6Zn6Pb3) : Sn5~ 7%, Zn5~ 7%, Pb2~ 4%, Cu residue
Base material: CuSn6Zn6Pb3
Ultimate dynamic load: 60N/mm2
Basic hardness: HB80~100
Friction coefficient: <0.15
*** service temperature: 350℃
*** sliding speed: 2m/s

Standard

ISO3547 DIN1494 Bimetallic Bearing

Application

The product is double the carrying capacity of the strongest alloy bearing a heavy vehicle balanced bridge bushings, gaskets; bulldozer driven pulley; automotive steel bushings are using the product.
It is a very purpose. wide high-load low-speed sliding bearings.

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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