The Steel Lubricated Bearing – Oilless 2000 is a high-performance bearing designed for exceptional durability and long-lasting reliability. This oil-free bearing eliminates the need for lubrication, significantly reducing maintenance requirements and operational costs.

Crafted from high-grade steel, the bearing offers robust structural integrity and superior wear resistance. Its unique lubrication system ensures smooth operation even under heavy loads and high-speed conditions.

The Oilless 2000 bearing is suitable for a wide range of applications, including machinery, pumps, and other industrial equipment. Its oil-free design means it can operate in environments where traditional oil-lubricated bearings may not be suitable, such as in dusty or wet conditions.

Our commitment to quality and innovation ensures that the Steel Lubricated Bearing – Oilless 2000 meets the highest standards of performance and reliability. Wh you need a bearing for a specific application or are looking for a durable and efficient solution for your industrial operations, we have the perfect solution for you.

Contact us today to learn more about the Steel Lubricated Bearing – Oilless 2000 and how it can enhance the performance and reliability of your machinery and equipment.

Hardened steel bushing with graphite are frequently used in hydraulic cylinders & pivot joints of excavator booms, arms and bucket joints.

Building and mining machines are also often furnished with Hardened steel bushing. Soild Hardened steel bushings repairparts for all kind of machines in cheap price.

Steel - based self - lubricating graphite bearing sleeve

Steel base inlaid bearing, is a reinforced product, with high compressive performance, when working can discharge lubrication particles, so that a layer of diaphragm between the shaft and the sleeve, has the advantage of more anti-bite than monomer oil lubrication, in the support of lifting machinery is particularly suitable.Suitable for the support of winder and crane, but not suitable for use in water or acid and alkali.

Composition of steel (GCr15) Graphite self-lubricating bearing

Lubrication for friction makes the principle of the graphite in granular, in oil film tog play the role of lubrication,

including filler material has high temperature resistance, low friction characteristics of PB has stained with viscosity and thus form a stable oil film better isolation layer, reduce the movement object in friction between bearings, because of the oil film stability, so has the property of free maintenance.

GCr15 material composition

It can be used to manufacture various bearing rings with wall thickness ≤12mm and outer diameter ≤250mm.

Poly tetra fluoroethylene

It is a polymer made of tetrafluoroethylene as monomer.White waxy, translucent, good heat and cold resistance, can be used in -180 ~ 260 C for a long time.This material has the characteristics of anti - acid, anti - alkali, anti - various organic solvents, almost insoluble in all solvents.At the same time, has the characteristics of high temperature resistance, its coefficient of friction is very low, so it can be used for lubrication, but also become easy to clean the ideal coating of the inner layer of the water pipe;Toxic, human carcinogen.

Polybutylene(PB)

Application: oil additive, intermediate of oil additive;Raw materials for lubricating oil, adhesives and plasticizers;It can also be directly used as lubricant, impregnated oil in high voltage cables, compressor oil;No smell, non-toxic, can be used with food contact paper processing;
Features: colorless or light yellow viscous liquid, odorless or slightly stinky.

Performance parameters of steel-backed graphite self-lubricating bearing

Steel (GCr15) Graphite self-lubricating bearing The basic process

You can choose the type and size of bearings you need

We can customize the size of the product to the position of graphite for you, and we can meet the special requirements you want, such as material requirements, mechanical properties, etc., we can change the corresponding production process according to your requirements.

We design and draw product drawings for each customer and help customers to select the steel cornerstone ink self-lubricating bearings they want

For more dimensions, click here Graphite self-lubricating bearing.pdf

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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