Metal and bimetal bronze CuPb10Sn10 sleeve bushings are widely used in applications that require high wear resistance, corrosion resistance, and good load-bearing capabilities. These bushings are often made from a combination of copper, lead, and tin alloys, such as CuPb10Sn10, which provides excellent mechanical properties and self-lubricating capabilities.

The SAE 792 standard specifies the dimensions and requirements for split bushes, which are designed to fit into a housing and provide a bearing surface for rotating or sliding components. The sleeve bushings made from CuPb10Sn10 bronze material are commonly used in SAE 792 housing split bushes, offering reliable performance and long service life.

The split design of SAE 792 housing bushes allows for easy installation and removal, which is crucial in applications where maintenance and repair are important. The bushings are also designed to withstand high loads and provide good alignment, ensuring smooth and efficient operation of the rotating or sliding components.

Metal and bimetal bronze CuPb10Sn10 sleeve bushings for SAE 792 housing split bushes are widely available from various suppliers, including those in China. When selecting a supplier, it is important to ensure that the bushings meet the SAE 792 standard and are made from high-quality materials to ensure optimal performance and durability.

Bronze Sleeve Bushings

Bimetal cylindrical bearings are available on order.Dimensions and tolerances follow ISO 3547 and specifications.VIIPLUS INTERNATIONAL offers, along with the widest range of lubricated and self-lubricating bearing Sleeve Bushing Bimetal Bearing made to order from china factory, a comprehensive technical and application engineering knowledge.In this respect, our Application Engineers can assist you in:Choosing the right type of plain bearing for your application! Design of the bearing according to standard dimensions or to customer specific requirements! Establishing a life time estimate! Assembly and installation recommendations.

Bimetal plain bearing materials each consisting of a steel backing to which is sintered a lead bronze sliding layer. Metal Sleeve Bushings forms made to order from china: cylindrical bushes and thrust washers with non-standard dimensions, sliding plates, customized bearing designs.

Bimetal Sleeve Bush bore may bored, reamed, broached or ball burnished in situ to control the assembled bearing clearance,Suitable for oil or grease lubrication Steel backing provides strength and rigidity,Hardened shafts are not required,Thin wall construction permits compact bearing assembly.

Bimetal Bearing Solutions for Lubricated Applications

Bimetal Bushing Characteristics
Physical and Mechanical Properties

• Capable of supporting high specific loads
• Excellent fatigue strength under dynamic and shock load conditions
• Suitable for oil and grease lubrication
• Superior performance under oscillating movement
• Steel backing provides strength and rigidity
• Thin wall construction permits compact bearing assembly
• Indents in the bearing surface provide a reservoir for grease and thus allow extended re-greasing intervals
• Tolerant of relatively poor mating surface finish

Bearing forms available in standard dimensions

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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