Bush-Red (Heavy Duty Bush)

Oil-free self-lubricating bearings use a very wide range

Oil-free self-lubricating bearing is the absence of oil is no need to refuel or less refueling, our goal is to ensure that the bearings in this condition can also show good performance, and extend its service life as much as possible. It works in the initial stage of operation, the bearing surface of the solid lubricant due to the friction between each other to form a transfer film and cover the workpiece, the final formation of solid lubricating film to achieve the purpose of self-lubricating, it cut off the workpiece Between the direct contact, thus a good protection of the wear parts to extend the life of the bearing and the workpiece. Therefore, this kind of bearing in our lives are used in a variety of, it is used in special circumstances need additional fuel supply device, can reduce bearing operating costs, reduce equipment downtime maintenance, but also to mechanical maintenance more convenient. So now it is in the light industrial machinery, heavy machinery, construction machinery and other fields used in a lot of performance in our lives is perfect.

Low Friction Woven Fabric Oilless TEX Bearing

TEX Bushing,Customized Bushing , Fiber Bush
Plain Bearings and Sleeve Bearings Self-Lubricating Bearings, Liner Type Non-Metallic woven Stainless Steel 316 with fabric

Stainless steel 316 and steel-base polytetrafluoroethylene aramid fiber braid bearings are self-lubricating materials with wear-resistant fibers as the main surface material.The product has low friction coefficient, good bearing capacity, abrasion resistance and self-lubrication performance, mainly used in various high-grade valves and go-kart.

VSB-36 Bushing slide bearing bushings, oilless plain bearing

Stainless Steel316+/FABRIC
Apply to the oil or fuel work harder parts,wear resistance,low coefficient of ftiction,long life:good overall performance.Apply to the oil or fuel work harder parts,wear resistance,low coefficient of friction,long life;good iverall perfotmance.
VSB-36 Bushing
Stainless Steel316+/FABRIC
is of oil resistant, acid resistant, alkali resistant and seawater resistant, more over, there is no lead in the surface layer and so is particularly fit for application in food machinery, alkali flow meters, pumps motion elements in pharmaceutical machines, printing machines chemical engineering machines and other ocean industry. The bushing is a triple layers composites one, the base material is stainless steel back and a film of heat resistant power filled being calendered onto the sintered spherical bronze interlayer.

Basic advantages of Stainless Steel 316 fabric bushings

VIIPLUS bearing is a leading self-lubricating bearing manufacturer and supplier in China. We are highly proficient in the production of various self-lubricating bearings, bushes, and the sliding blocks, etc. Our main product catalogue now includes the oilless self-lubricating bearing, composite bearing, copper bearing, wrapped bronze bearing, bimetallic bearing, thermoplastic bushes, and more. All our products are characterized by reliable performance and low price. They are very popular and widely applicable in different industries including the automobile, machine tools, moulds, metallurgical machinery, mining machinery, textile machinery, hoisting machinery, construction machinery, printing machines, irrigation machinery, injection molding machines, food machinery, ports, marine machinery, and the agricultural and forestry machinery, etc.
Low friction woven fabric oilless bearing VSB-36 TEX is widely used in high temperature production lines, construction machinery, automobile chassis parts, ball valves, butterfly valves, pumps and chemical industries and high-speed trains and other heavy low and cannot refuel occasion etc.
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VIIPLUS SLDING Bearings for offshore platforms and oil & gas industry | VIIPLUS 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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