Wrapped bronze bearings are specifically designed for use in hoisting machines, where they play a crucial role in ensuring smooth and reliable operation. The bronze material used in these bearings is known for its excellent wear resistance, high strength, and corrosion resistance, making it a suitable choice for demanding industrial applications.

The wrapping construction of these bearings provides additional stability and durability. The bronze material is wrapped around a core structure, creating a strong and resilient bearing that can withstand the heavy loads and repetitive motion typical of hoisting machines.

Wrapped bronze bearings also exhibit good self-lubricating properties, which helps reduce friction and wear during operation. This results in lower maintenance requirements and extended service life for the bearings.

In addition, wrapped bronze bearings are precision-engineered to fit the specific requirements of hoisting machines. They are designed to ensure proper alignment and load distribution, minimizing stress and wear on the bearings and the surrounding components.

Overall, wrapped bronze bearings are an excellent choice for hoisting machines, providing superior performance, durability, and reliability in demanding industrial environments.

Bronze Bushing, Steering Case, Axle, Front And Rear

Provide You Best Self-lubricating Bearings Solution.

WB702 60x65x40 bronze bushings made to order!

Wieland B09 dimensions wieland bearings gleitlager bronze!

Replacement Parts Bushings, Dimensions of the tube for machined bushings OD up to 100 mm Wall thickness depending on OD

CuSn8P: Bronze highly resistant to load, high temperature, corrosion and
wear. Under heavy load, it requires a hardened shaft.
Application: Small-end bearings, joint bearings subject to impact load, standard alloy for wrapped bushings.

Composition (standard values)

Sleeve Bearings · Straight – Flange Sleeve Bearing(WF-WB700 & WB700)

The bearings are manufactured of a cold formable homogenous bronze, which because of this will obtain exceptional material properties. The execution of the flange permits that the bearing also can carry axial loads. The standard sizes are fitted with diamond-shaped lubrication indents on the bearing surface.

These indents serve as lubricant reservoirs I .a. to rapidly build up a lubrication film in the moment of start and therewith reduce the start friction. The properties of the WB700-material, tog with the procedure of wrapping and calibration, make this type of bearing especially suitable for constructions, where medium or high loads and relatively slow movements are occurring

WB700 is a kind of bushes wrapped by bronze strip. The bronze is made as to 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. It is of high load capacity and long life, in place of traditional casting bronze bush. It is cheaper and more compact. It is widely applied in hoisting machines and other construction machines, automobiles, tractors, trucks, machine tools, and some mineral engines.

Advantages:

1. Lead-free and fully recyclable. Less expensive than a machined bushing.
2. Minimal space required.
3. Lighter in weight than machined bushing or roller bearing.
4. High stability under load, therefore particularly suitable for oscillating bearing.
5. Lubrication grooves are coined into the metal, and any shape desired is possible.
6. Grease depots for long-term lubrication.

■ WB700 Technical Data

WF-WB700 Flanged Bushing is a kind of slide bearing in split wrapped bushing. It is made of CuSn6.5 or CuSm.The bronze is made as a particular formulation with high specific and gravity.

WF-WB700 Flanged bushing offers the following additional advantages:

1. A single bushing and take both radial and axial forces.
2. A single bearing element is needed to replace both thrust washer and cylindrical bushing.
3. High stability.

4. No fixing of thrust washers.

Physical and Mechanical Properties:

Bushing, Steering Case, Axle, Front And Rear

Bushing Supplier. Add Equipment to your list. to find the parts that fit.

bushing products. A wide variety of bushing options are available to you,

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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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