Steel and copper inlaid bronze Gleitlager bearings are specifically designed for use in metallurgical machinery, where they play a crucial role in ensuring smooth and reliable operation under extreme conditions. These bearings incorporate a bronze alloy base with steel and copper inserts, combining the strength and durability of steel with the wear resistance and lubrication properties of bronze and copper.

The bronze alloy base of the Gleitlager bearings offers excellent corrosion resistance and thermal stability, making them suitable for the harsh environments often encountered in metallurgical applications. The steel inserts provide additional strength and rigidity, ensuring that the bearings can withstand heavy loads and impact forces.

The copper inserts in the Gleitlager bearings serve as a natural lubricant, reducing friction and wear during operation. This extends the service life of the bearings and reduces maintenance requirements. The copper also contributes to the bearings' ability to dissipate heat, preventing overheating and damage to the machinery.

The precision-engineered design of the Gleitlager bearings ensures that they fit precisely into the machinery, providing smooth and reliable motion. This improves the efficiency and productivity of the metallurgical machinery, reducing downtime and waste.

In addition, the Gleitlager bearings are often equipped with self-lubricating features such as graphite inserts or oil grooves. These features eliminate the need for frequent lubrication, further reducing maintenance requirements and downtime.

Overall, steel and copper inlaid bronze Gleitlager bearings are an essential component of metallurgical machinery. Their combination of strength, durability, wear resistance, and lubrication properties ensures smooth and reliable operation under extreme conditions, improving the efficiency and productivity of the machinery.

VSB-JDB-3 Steel matrix composite self-lubricating bearing

steel-copper inlaid bearing is a solid lubricating product embedded with solid lubricant after sintering tin bronze powder as a whole in the substrate of the steel sleeve, which not only has the function of vsb-jdb-2, but also can save cost and improve compressive strength.Its end face can be used for welding and installation with matrix, so it is suitable for metallurgical machinery, construction machinery and oil machinery and other fields where refueling is not allowed

Stainless steel bearings: stainless steel bearings and ordinary bearings, not only material has an obvious advantage, and in the process, precision control, than the ordinary bearings to be more strict.In the working process, the stainless steel bearings work stably, the noise is small, the corrosion resistance, the stainless steel bearings can organize the batch production, has realized the high strength, the high precision.Can be used in a variety of products easy to rust, strong corrosion, mainly used in medical equipment, ocean engineering, cryogenic engineering, optical instruments, high-speed machine tools, high-speed motors, printing machinery, food processing machinery and other parts.Stainless steel is often divided into: martensitic steel, ferrite steel, austenitic steel, austenitic - ferrite

VSB-JDB-3 Steel matrix composite self-lubricating bearing Technical Data

Steel matrix composite self-lubricating bearing Alloy material

Schematic diagram of lubrication principle

Steel matrix composite self-lubricating bearing advantage

Graphite bearing has good adsorption, thermal conductivity, chemical stability, strong oxidation resistance and high temperature resistance.Self - lubricating effect and other high - quality characteristics.Highly praised by industrial users.Sometimes in order to achieve more prominent antioxidant characteristics, graphite bearings will be treated with a special process.

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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.

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.

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.

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.