Fast direct delivery service for quality products, sliding bushing diametre gap size large inventory of bushings and bearings offering customers direct delivery service. Low prices flanged bronze bushings online from bronzegleitlager.com DIN 1494 ISO 3547

Rod guidance for pneumatic and hydraulic cylinders, These Bush Bearings are widely used in the Machinery Industry. (Inside Diameter x Outside Diameter x Length).

Metric FTH Series Flanged Dryslide Bushing Same type, same product parameters, half price

Stainless steel corrosion resistant bearings, stainless steel as a matrix, the middle of the sintering corrosion resistant alloy powder, the surface of the rolling based low friction materials, after the rolling molding of a very effective corrosion resistant materials.It has the characteristics of oil resistance, acid resistance, alkali resistance, seawater resistance and wear resistance. The material on the surface does not contain lead.

In food and beverage machinery, chemical medium ph flow of the pump valve, pharmaceutical machinery, printing and dyeing machinery, chemical machinery, Marine industry corrosion resistance sliding parts are most suitable for use.

Bushing Feature

Our metal-backed (polytetrafluoroethylene) -based metal bushing materials have a common structure consisting of a steel beam connected to a porous bronze sintered layer. This bronze sintered layer is impregnated and covered with the filled socket lining. The steel beam provides mechanical strength, while the bronze sintered layer creates a strong mechanical bond between the beam and the socket liner. This construction promotes dimensional stability and improves thermal conductivity. These linings offer exceptionally low friction.

Straight Bushings, Flanged Bushings, Washers and Strip - Metric

Metric FTH Series Flanged Dryslide Bushing Same type Stainless steel corrosion-resistant oil-free composite bearing

Bushing Material Structure

1. The / Pb mixture 0.01 ~ 0.03 mm as a sliding layer, provides an excellent initial transfer film, which effectively coats the contact surface of the bearing assembly, forming a homogeneous oxide solid lubricant film .
2. Porous bronze 0.2 ~ 0.3 mm, provides max. the thermal conductivity away from the bearing surface, also serves as a reservoir for the lead- mixture.

3. The base of 0.7 ~ 2.3mm mild steel provides fundamental structural support and provides exceptional load-bearing capacity and excellent heat dissipation.
4. Tinning 0.005mm or copper plating 0.008mm provides good corrosion resistance.

Bushing Characteristics

· Good wear and friction performance over a wide range of oil-free loads, speeds and temperature
· Also work well with lubrication
· Maintenance free, long life

Metric FTH Series Flanged Dryslide Bushing Same type Poly tetra fluoroethylene()

Metric FTH Series Flanged Dryslide Bushing Same type 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.

Bushing Properties

Availability

· Standard cylindrical bushing, flanged bush, thrust washers and strips are available.

· Lead free type is also available

· All special designs are produced according to your requirement

Bushing Application

du bushings are widely used in hoists, hydraulics and valves, pneumatic equipment, medical equipment, textile machinery, agricultural equipment, construction machinery, material handling equipment, packaging equipment, automotive industry, scientific equipment, dryers, office equipment, etc.

self - lubricating oil - free bearing bearing of the molding process

Steel Bronze With Bushing - Metric

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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