For pneumatic valve applications, we offer a comprehensive range of sleeve bushings, steel bronze bearings, and thrust washers. These precision-engineered components are designed to ensure smooth operation and extended service life in pneumatic systems.

Our steel bronze bearings exhibit excellent corrosion resistance and wear properties, making them ideal for high-pressure and high-temperature pneumatic valve applications. The material's durability ensures reliable performance even under demanding conditions.

The thrust washers we provide are specifically designed to withstand the axial loads generated by pneumatic valves. They are manufactured from high-strength materials that can effectively distribute and absorb these loads, preventing premature wear and failure.

Our sleeve bushings are custom-made to fit various pneumatic valve designs. They feature a tight fit and smooth operation, reducing friction and wear while enhancing the overall performance of the valve.

We understand that each pneumatic application has its unique requirements, and we are committed to providing customized solutions that meet your specific needs. Our team of experts will work with you to identify the best materials and designs for your pneumatic valves, ensuring optimal performance and reliability.

Contact us today to learn more about our pneumatic valves sleeve bushing, steel bronze bearing, and thrust washer solutions. We look forward to helping you achieve success in your pneumatic applications.

Pneumatic Valves Sleeve Bushing | Pneumatic Valve Steel Bronze Bearing & Thrust Washer Manufacturer in China

Pneumatic Valve Spilt bearings – china Manufacturer and Exporter of Pneumatic Valve Bearings, Pneumatic Cylinder Sleeve Bushing, Pneumatic Solenoid Valve Thrust Washer in china. We have wide range in Pneumatic Cylinders bushes and Pneumatic Valves bearings in Ready Stock also we provide fast Delivery as per Customer Demands.

VIIPLUS made to order from china designs and manufactures corrosion resistant bearings and bushings suitable for severe service control valve applications in corrosive chemical environments. lined perforated metal backed bearings, corrosion resistant bearings and bushings, machined metal backed lined bearings

Control Valve Stem Bushing Steel Sleeve high temperature valve rocker bushing Coated Bushes

VIIPLUS is one of valve bushings & bearing manufactures with the advanced valve plant in China who can cover a complete bushings production in order to satisfy the demand and requirements of our clients.We are leading exporters of Valve sleeve stainless steel 316 bushing and Dry Bearing, sliding bearing, boundary lubrication Bearing,Dry Bearing,Bronze Bearing,Bimetal Bearing, Bearing.

DIN1494 Standard composite bushing tolerances and mold requirements

Bushing & Bearings Services. Description: sliding bearings. These are the wrapped cylindrical bushings ( DIN 1494 ). From a technical point of view, the product is already widely known and new applications are constantly being identified to take advantage of the high load capacity, the self-lubricated feature and the excellent ratio.

Applications include valves, commercial fire sprinkler systems, mixers, blenders, swivels, and extruders.

All the valve's internal self-lubricating bearings are sliding bearings, the whole material the use of carbon steel liner.

Because of its superior performance, the friction in friction application fields become best material, such as sleeve bearing, sliding bearing, the valve seat, seals, pump wear ring, etc.
Our bushings & bearing product range is covering many valve types like: gate, globe, check, ball, butterfly, nuclear, subsea, control, safety valve & wellhead equipment. All the indicated valve bushings range is being operated within different industries. The bushings majority is being used in the oil & gas, offshore, chemical, power, nuclear, mining and air separation industry.

VIIPLUS is able to provide a complete solution of industrial valves bushings with a fully traceable and in-house quality control system. VIIPLUS proven stable quality, reliability and performance.

The valve mainly by the valve main body, the transmission system, the hydraulic pressure stands, the electrically controlled box and so on four parts is composed.

Benefits

• High-impact strength

• High-resistance to wear

• High load-carrying capacity at low speeds

• Dimensionally stable

• Custom sizes for your application

• No lubrication required

• Low coefficient of friction

Guide bushing Control Valve Bushing Series Bushings ISO Guide Bushing Control Valve Stem Bushing

The non-corrosive,non-metallic bushing are strategically located,providing maximum shaft
support, centralized alignment for a thru-shaft journal corrosion and minimize bushing and frictional torque.

Bushing (DN 50-300), bronze (DN 350-600)

High Performance, Low Wear Solutions

SELF-LUBRICATING BEARINGS SOLUTIONS

A self-lubricating bearing is a metallic component permeated in a lubricant oil. The oil provides a constant lubrication between bearing and shaft, so the system does not need any additional external lubricant. VIIPLUS Specialty Bearings features high performance, low wear self-lubricating bearing solutions.

METAL POLYMER COMPOSITE BEARINGS
Metal-polymer composite plain bearings enable economical solutions in many industrial and automotive applications. They are particularly effective with oscillating movements and achieve a rating life several times higher than that of bearings with conventional materials. In addition, all our new plain bearings are lead-free and, therefore, environmentally friendly.

Fabric Liners for Bearings
self-lubricating bearing materials are based on specially engineered liner fabrics with a tight woven fabric of synthetic fibers coated / saturated with a unique matrix of powder, high strength resin, and special fillers. This design provides high load rating, uniform wear behavior, low friction and extended service life.

ROLLED DRY SLIDING BEARINGS ()

Carbon Steel + Copper Powder + ( + Pb + Filler)

· Metal-Polymer Composite Self-lubricating Bushing Material
· Steel Back + Porous Bronze Sinter +
· + Lead

Plain bearings are available as bushes, collar bushes, washers, strips or special designs.
Metric bearings and imperial bushings made to order: standard bushing forms in special dimensions, half-bushings, special shapes obtained by stamping or deep drawing, customized bushing designs

This material meets the demanding criteria for long life and maintenance free performance with or without lubrication.
Automotive: tractors, combines, crop sprayers, earth-movers, graders and other construction, auto machines, specific uses in power steering cylinders, steering gear thrust washers, disc brakes, calipers and pistons, shock absorbers, governor linkage, windshield wiper motor, tilt gear assemblies...
Business machines: photocopy machines, typewriters, mail sorters, postage meter systems, computer terminal printers and peripheral equipment, automatic printing devices, mail processing machinery...
Hydraulics and valves: pumps including gear, rotary, water, axial piston, and other types, ball, butterfly, poppet steam, and other valves and valve trunnions...
Home appliances: tape recorders, refrigerators, air conditioners, cleaners, polishers, sewing machines, ovens, dishwashers, clothes washing machines...And materials handling, marine engine, packaging, textile equipment, tools...etc.

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.