The 316 Stainless Steel Valve Bushing Gleitlager designed for butterfly valve bushings is a high-performance component that offers exceptional durability and corrosion resistance. Constructed from 316 stainless steel, this bushing is known for its ability to withstand harsh environments and demanding applications.

The Gleitlager design, which translates to "sliding bearing" in German, refers to the self-lubricating properties of the bushing. This feature ensures smooth and efficient operation of the butterfly valve, even under high loads and temperatures. The self-lubricating material creates a lubricating film that reduces friction and wear, significantly extending the lifespan of the valve and reducing maintenance requirements.

The 316 stainless steel material used in the construction of this bushing provides superior corrosion resistance, making it suitable for use in a wide range of environments, including those with high humidity, chemicals, and saltwater. This corrosion resistance also helps maintain the dimensional stability of the bushing, ensuring it fits perfectly into the valve and maintains its original shape and size.

The precision engineering of this 316 Stainless Steel Valve Bushing Gleitlager ensures it meets the strict requirements of butterfly valve applications. It is designed to fit perfectly into the valve, providing a smooth and reliable seal that prevents leakage and ensures the valve operates as intended.

Overall, the 316 Stainless Steel Valve Bushing Gleitlager for butterfly valve bushings is a reliable and cost-effective solution that offers superior durability, corrosion resistance, and self-lubricating properties. It is an excellent choice for butterfly valve applications that require high performance and reduced maintenance.

Stainless Steel Bushings

Butterfly Valve Plain Bearings Accessories,Stainless Steel Bushings - Pipe Fittings Bearings Provides Our Global Valves And Pipelines And Other Chemical Industries With Unique Design Solutions To Complex Problems And An Unparalleled Level Of Service, Quality, And Support.Mechanical Joining

Self-Lubricating Bearings Technology Form The Basis For Our Mechanical Joining. All Sleeve Bushings Are Manufactured To Exacting Standards And For Optimal Performance To Satisfy Your Piping Requirements.

Butterfly Valves Bushes Ball Valves Globe Valves Gate Valves Stainless Steel 316 /Tex Valve Bushings Gleitlager

Stainless Steel 316 Bearings + Fabric Viiplus Sliding Bearing Solutions For Your Valve Applications

Application

BALL VALVES(flange ball valves)

LINED BALL VALVES BUSHINGS

RISING STEM BALL VALVES BUSHINGS

SEGMENTED BALL VALVES

TOP ENTRY BALL VALVES BUSHINGS

TRUNNION MOUNTED BALL VALVES BUSHINGS

TECHNISCHE DATEN

• Wrapped composite sliding bearing
• Carbon-steel / fibres fabric
• Maintentance-free
• Available on request

PROPERTIES

• Excellent sliding and wear behaviour, especially in case of rotating and oscillating movement, good shock absorption, very high load capacity, no water absorption

MATERIALS

• Support materialCarbon steel
• Sliding layer fibres fabric
• Support material: Stainless steel and bronze on request

MATERIAL PROPERTIES

• Specific load capacity static≤ 350 [N/mm2]
• Specific load capacity dynamic≤ 180 [N/mm2]
• Sliding speed< 0.5 [m/s] 1 [m/s] lubricated
• Friction value ***0.03 [µ] to 0.20 [µ]
• Temperature strain– 50 [°C] to + 250 [°C]
• Max. PV-value1.8 [N/mm² x m/s]

MOUNTING ADVISE

• The application of an adequate force fitting mandrel is advisable

TOLERANCE DETAILS

• Housing ØH7
• Bushing inner-Ø after mountingH9
• Shaft tolerancef7 to h8

MAINTENANCE

• is a dry sliding bearing with glued fibres fabric overlay. Lubrication is therefore not necessary and not allowed.

RANGE OF APPLICATION

• Machine and crane construction, apparatus engineering, agricultural machines, fittings, water pumps, chemical industry

CAPTION

This sliding bearing type and special dimensions are only available on request

Application

Now this product has been used like suspension and auxiliary of agriculture and construction machines,cranes and hydraulic and mechanical jibs,ball butterfly and sluice valves,water pumps,chemical industries etc.

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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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